ba_climate_zone stringclasses 9
values | county stringlengths 3 36 | derived_fields listlengths 1 1 | id stringlengths 6 37 | iecc_2021_zone stringclasses 8
values | moisture_regime stringclasses 4
values | source stringclasses 1
value | source_quote stringlengths 14 62 | state stringclasses 51
values | url stringlengths 63 94 | verified_fields listlengths 2 5 | zone_changed_from stringclasses 12
values | ba_zone_changed_from stringclasses 7
values |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mixed‐Humid | Abbeville | [
"state"
] | sc-abbeville | 3 | A | https://www.osti.gov/servlets/purl/1893981 | SC Abbeville Mixed‐Humid 3 A | SC | https://referencesource.org/iecc-climate-zone-by-county/sc-abbeville/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Hot‐Humid | Acadia | [
"state"
] | la-acadia | 2 | A | https://www.osti.gov/servlets/purl/1893981 | LA Acadia Hot‐Humid 2 A | LA | https://referencesource.org/iecc-climate-zone-by-county/la-acadia/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Accomack | [
"state"
] | va-accomack | 4 | A | https://www.osti.gov/servlets/purl/1893981 | VA Accomack Mixed‐Humid 4 A | VA | https://referencesource.org/iecc-climate-zone-by-county/va-accomack/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Adair | [
"state"
] | ia-adair | 5 | A | https://www.osti.gov/servlets/purl/1893981 | IA Adair Cold 5 A | IA | https://referencesource.org/iecc-climate-zone-by-county/ia-adair/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Adair | [
"state"
] | ky-adair | 4 | A | https://www.osti.gov/servlets/purl/1893981 | KY Adair Mixed‐Humid 4 A | KY | https://referencesource.org/iecc-climate-zone-by-county/ky-adair/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Adair | [
"state"
] | mo-adair | 5 | A | https://www.osti.gov/servlets/purl/1893981 | MO Adair Cold 5 A | MO | https://referencesource.org/iecc-climate-zone-by-county/mo-adair/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Adair | [
"state"
] | ok-adair | 3 | A | https://www.osti.gov/servlets/purl/1893981 | OK Adair Mixed‐Humid 3 A | OK | https://referencesource.org/iecc-climate-zone-by-county/ok-adair/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Adams | [
"state"
] | co-adams | 5 | B | https://www.osti.gov/servlets/purl/1893981 | CO Adams Cold 5 B | CO | https://referencesource.org/iecc-climate-zone-by-county/co-adams/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Adams | [
"state"
] | ia-adams | 5 | A | https://www.osti.gov/servlets/purl/1893981 | IA Adams Cold 5 A | IA | https://referencesource.org/iecc-climate-zone-by-county/ia-adams/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Adams | [
"state"
] | id-adams | 6 | B | https://www.osti.gov/servlets/purl/1893981 | ID Adams Cold 6 B | ID | https://referencesource.org/iecc-climate-zone-by-county/id-adams/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Adams | [
"state"
] | il-adams | 5 | A | https://www.osti.gov/servlets/purl/1893981 | IL Adams Cold 5 A | IL | https://referencesource.org/iecc-climate-zone-by-county/il-adams/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Adams | [
"state"
] | in-adams | 5 | A | https://www.osti.gov/servlets/purl/1893981 | IN Adams Cold 5 A | IN | https://referencesource.org/iecc-climate-zone-by-county/in-adams/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Hot‐Humid | Adams | [
"state"
] | ms-adams | 3 | A | https://www.osti.gov/servlets/purl/1893981 | MS Adams Hot‐Humid 3 A | MS | https://referencesource.org/iecc-climate-zone-by-county/ms-adams/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Adams | [
"state"
] | nd-adams | 6 | A | https://www.osti.gov/servlets/purl/1893981 | ND Adams Cold 6 A | ND | https://referencesource.org/iecc-climate-zone-by-county/nd-adams/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Adams | [
"state"
] | ne-adams | 5 | A | https://www.osti.gov/servlets/purl/1893981 | NE Adams Cold 5 A | NE | https://referencesource.org/iecc-climate-zone-by-county/ne-adams/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Adams | [
"state"
] | oh-adams | 4 | A | https://www.osti.gov/servlets/purl/1893981 | OH Adams Mixed‐Humid 4 A | OH | https://referencesource.org/iecc-climate-zone-by-county/oh-adams/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Adams | [
"state"
] | pa-adams | 4 | A | https://www.osti.gov/servlets/purl/1893981 | PA Adams Cold→ Mixed‐ 5→4 A Humid | PA | https://referencesource.org/iecc-climate-zone-by-county/pa-adams/ | [
"county",
"iecc_2021_zone",
"moisture_regime",
"zone_changed_from"
] | 5→4 | Cold→Mixed‐Humid |
Cold | Adams | [
"state"
] | wa-adams | 5 | B | https://www.osti.gov/servlets/purl/1893981 | WA Adams Cold 5 B | WA | https://referencesource.org/iecc-climate-zone-by-county/wa-adams/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Adams | [
"state"
] | wi-adams | 5 | A | https://www.osti.gov/servlets/purl/1893981 | WI Adams Cold 6→5 A | WI | https://referencesource.org/iecc-climate-zone-by-county/wi-adams/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime",
"zone_changed_from"
] | 6→5 | null |
Cold | Addison | [
"state"
] | vt-addison | 6 | A | https://www.osti.gov/servlets/purl/1893981 | VT Addison Cold 6 A | VT | https://referencesource.org/iecc-climate-zone-by-county/vt-addison/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Aiken | [
"state"
] | sc-aiken | 3 | A | https://www.osti.gov/servlets/purl/1893981 | SC Aiken Mixed‐Humid 3 A | SC | https://referencesource.org/iecc-climate-zone-by-county/sc-aiken/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Very Cold | Aitkin | [
"state"
] | mn-aitkin | 7 | null | https://www.osti.gov/servlets/purl/1893981 | MN Aitkin Very Cold 7 | MN | https://referencesource.org/iecc-climate-zone-by-county/mn-aitkin/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone"
] | null | null |
Hot‐Humid | Alachua | [
"state"
] | fl-alachua | 2 | A | https://www.osti.gov/servlets/purl/1893981 | FL Alachua Hot‐Humid 2 A | FL | https://referencesource.org/iecc-climate-zone-by-county/fl-alachua/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Alamance | [
"state"
] | nc-alamance | 3 | A | https://www.osti.gov/servlets/purl/1893981 | NC Alamance Mixed‐Humid 4→3 A | NC | https://referencesource.org/iecc-climate-zone-by-county/nc-alamance/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime",
"zone_changed_from"
] | 4→3 | null |
Marine | Alameda | [
"state"
] | ca-alameda | 3 | C | https://www.osti.gov/servlets/purl/1893981 | CA Alameda Marine 3 C | CA | https://referencesource.org/iecc-climate-zone-by-county/ca-alameda/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Alamosa | [
"state"
] | co-alamosa | 6 | B | https://www.osti.gov/servlets/purl/1893981 | CO Alamosa Cold 6 B | CO | https://referencesource.org/iecc-climate-zone-by-county/co-alamosa/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Albany | [
"state"
] | ny-albany | 5 | A | https://www.osti.gov/servlets/purl/1893981 | NY Albany Cold 5 A | NY | https://referencesource.org/iecc-climate-zone-by-county/ny-albany/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Albany | [
"state"
] | wy-albany | 6 | B | https://www.osti.gov/servlets/purl/1893981 | WY Albany Cold 6 B | WY | https://referencesource.org/iecc-climate-zone-by-county/wy-albany/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Albemarle | [
"state"
] | va-albemarle | 4 | A | https://www.osti.gov/servlets/purl/1893981 | VA Albemarle Mixed‐Humid 4 A | VA | https://referencesource.org/iecc-climate-zone-by-county/va-albemarle/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Alcona | [
"state"
] | mi-alcona | 6 | A | https://www.osti.gov/servlets/purl/1893981 | MI Alcona Cold 6 A | MI | https://referencesource.org/iecc-climate-zone-by-county/mi-alcona/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Alcorn | [
"state"
] | ms-alcorn | 3 | A | https://www.osti.gov/servlets/purl/1893981 | MS Alcorn Mixed‐Humid 3 A | MS | https://referencesource.org/iecc-climate-zone-by-county/ms-alcorn/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Very Cold | Aleutians East | [
"state"
] | ak-aleutians-east | 7 | NONE | https://www.osti.gov/servlets/purl/1893981 | AK Aleutians East Very Cold 7 NONE | AK | https://referencesource.org/iecc-climate-zone-by-county/ak-aleutians-east/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Very Cold | Aleutians West (CA) | [
"state"
] | ak-aleutians-west-ca | 7 | NONE | https://www.osti.gov/servlets/purl/1893981 | Aleutians West 7 NONE AK Very Cold (CA) | AK | https://referencesource.org/iecc-climate-zone-by-county/ak-aleutians-west-ca/ | [
"ba_climate_zone",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Alexander | [
"state"
] | il-alexander | 4 | A | https://www.osti.gov/servlets/purl/1893981 | IL Alexander Mixed‐Humid 4 A | IL | https://referencesource.org/iecc-climate-zone-by-county/il-alexander/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Alexander | [
"state"
] | nc-alexander | 3 | A | https://www.osti.gov/servlets/purl/1893981 | NC Alexander Mixed‐Humid 4→3 A | NC | https://referencesource.org/iecc-climate-zone-by-county/nc-alexander/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime",
"zone_changed_from"
] | 4→3 | null |
Mixed‐Humid | Alexandria (city) | [
"state"
] | va-alexandria-city | 4 | A | https://www.osti.gov/servlets/purl/1893981 | VA Alexandria (city) Mixed‐Humid 4 A | VA | https://referencesource.org/iecc-climate-zone-by-county/va-alexandria-city/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Alfalfa | [
"state"
] | ok-alfalfa | 4 | A | https://www.osti.gov/servlets/purl/1893981 | OK Alfalfa Mixed‐Humid 3→4 A | OK | https://referencesource.org/iecc-climate-zone-by-county/ok-alfalfa/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime",
"zone_changed_from"
] | 3→4 | null |
Cold | Alger | [
"state"
] | mi-alger | 6 | A | https://www.osti.gov/servlets/purl/1893981 | MI Alger Cold 6 A | MI | https://referencesource.org/iecc-climate-zone-by-county/mi-alger/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Allamakee | [
"state"
] | ia-allamakee | 5 | A | https://www.osti.gov/servlets/purl/1893981 | IA Allamakee Cold 6→5 A | IA | https://referencesource.org/iecc-climate-zone-by-county/ia-allamakee/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime",
"zone_changed_from"
] | 6→5 | null |
Cold | Allegan | [
"state"
] | mi-allegan | 5 | A | https://www.osti.gov/servlets/purl/1893981 | MI Allegan Cold 5 A | MI | https://referencesource.org/iecc-climate-zone-by-county/mi-allegan/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Allegany | [
"state"
] | md-allegany | 5 | A | https://www.osti.gov/servlets/purl/1893981 | MD Allegany Mixed‐ 4→5 A | MD | https://referencesource.org/iecc-climate-zone-by-county/md-allegany/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime",
"zone_changed_from"
] | 4→5 | Mixed‐Humid→Cold |
Cold | Allegany | [
"state"
] | ny-allegany | 5 | A | https://www.osti.gov/servlets/purl/1893981 | NY Allegany Cold 6→5 A | NY | https://referencesource.org/iecc-climate-zone-by-county/ny-allegany/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime",
"zone_changed_from"
] | 6→5 | null |
Cold | Alleghany | [
"state"
] | nc-alleghany | 5 | A | https://www.osti.gov/servlets/purl/1893981 | NC Alleghany Cold 5 A | NC | https://referencesource.org/iecc-climate-zone-by-county/nc-alleghany/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Alleghany | [
"state"
] | va-alleghany | 5 | A | https://www.osti.gov/servlets/purl/1893981 | VA Alleghany Mixed‐ 4→5 A | VA | https://referencesource.org/iecc-climate-zone-by-county/va-alleghany/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime",
"zone_changed_from"
] | 4→5 | Mixed‐Humid→Cold |
Cold | Allegheny | [
"state"
] | pa-allegheny | 5 | A | https://www.osti.gov/servlets/purl/1893981 | PA Allegheny Cold 5 A | PA | https://referencesource.org/iecc-climate-zone-by-county/pa-allegheny/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Allen | [
"state"
] | in-allen | 5 | A | https://www.osti.gov/servlets/purl/1893981 | IN Allen Cold 5 A | IN | https://referencesource.org/iecc-climate-zone-by-county/in-allen/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Allen | [
"state"
] | ks-allen | 4 | A | https://www.osti.gov/servlets/purl/1893981 | KS Allen Mixed‐Humid 4 A | KS | https://referencesource.org/iecc-climate-zone-by-county/ks-allen/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Allen | [
"state"
] | ky-allen | 4 | A | https://www.osti.gov/servlets/purl/1893981 | KY Allen Mixed‐Humid 4 A | KY | https://referencesource.org/iecc-climate-zone-by-county/ky-allen/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Hot‐Humid | Allen | [
"state"
] | la-allen | 2 | A | https://www.osti.gov/servlets/purl/1893981 | LA Allen Hot‐Humid 2 A | LA | https://referencesource.org/iecc-climate-zone-by-county/la-allen/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Allen | [
"state"
] | oh-allen | 5 | A | https://www.osti.gov/servlets/purl/1893981 | OH Allen Cold 5 A | OH | https://referencesource.org/iecc-climate-zone-by-county/oh-allen/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Hot‐Humid | Allendale | [
"state"
] | sc-allendale | 3 | A | https://www.osti.gov/servlets/purl/1893981 | SC Allendale Hot‐Humid 3 A | SC | https://referencesource.org/iecc-climate-zone-by-county/sc-allendale/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Alpena | [
"state"
] | mi-alpena | 6 | A | https://www.osti.gov/servlets/purl/1893981 | MI Alpena Cold 6 A | MI | https://referencesource.org/iecc-climate-zone-by-county/mi-alpena/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Alpine | [
"state"
] | ca-alpine | 6 | B | https://www.osti.gov/servlets/purl/1893981 | CA Alpine Cold 6 B | CA | https://referencesource.org/iecc-climate-zone-by-county/ca-alpine/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Dry | Amador | [
"state"
] | ca-amador | 4 | B | https://www.osti.gov/servlets/purl/1893981 | CA Amador Mixed‐Dry 4 B | CA | https://referencesource.org/iecc-climate-zone-by-county/ca-amador/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Amelia | [
"state"
] | va-amelia | 4 | A | https://www.osti.gov/servlets/purl/1893981 | VA Amelia Mixed‐Humid 4 A | VA | https://referencesource.org/iecc-climate-zone-by-county/va-amelia/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Amherst | [
"state"
] | va-amherst | 4 | A | https://www.osti.gov/servlets/purl/1893981 | VA Amherst Mixed‐Humid 4 A | VA | https://referencesource.org/iecc-climate-zone-by-county/va-amherst/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Hot‐Humid | Amite | [
"state"
] | ms-amite | 3 | A | https://www.osti.gov/servlets/purl/1893981 | MS Amite Hot‐Humid 3 A | MS | https://referencesource.org/iecc-climate-zone-by-county/ms-amite/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Very Cold | Anchorage | [
"state"
] | ak-anchorage | 7 | NONE | https://www.osti.gov/servlets/purl/1893981 | 7 NONE AK Anchorage Very Cold | AK | https://referencesource.org/iecc-climate-zone-by-county/ak-anchorage/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Anderson | [
"state"
] | ks-anderson | 4 | A | https://www.osti.gov/servlets/purl/1893981 | KS Anderson Mixed‐Humid 4 A | KS | https://referencesource.org/iecc-climate-zone-by-county/ks-anderson/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Anderson | [
"state"
] | ky-anderson | 4 | A | https://www.osti.gov/servlets/purl/1893981 | KY Anderson Mixed‐Humid 4 A | KY | https://referencesource.org/iecc-climate-zone-by-county/ky-anderson/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Anderson | [
"state"
] | sc-anderson | 3 | A | https://www.osti.gov/servlets/purl/1893981 | SC Anderson Mixed‐Humid 3 A | SC | https://referencesource.org/iecc-climate-zone-by-county/sc-anderson/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Anderson | [
"state"
] | tn-anderson | 4 | A | https://www.osti.gov/servlets/purl/1893981 | TN Anderson Mixed‐Humid 4 A | TN | https://referencesource.org/iecc-climate-zone-by-county/tn-anderson/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Hot‐Humid | Anderson | [
"state"
] | tx-anderson | 2 | A | https://www.osti.gov/servlets/purl/1893981 | TX Anderson Hot‐Humid 2 A | TX | https://referencesource.org/iecc-climate-zone-by-county/tx-anderson/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Andrew | [
"state"
] | mo-andrew | 5 | A | https://www.osti.gov/servlets/purl/1893981 | MO Andrew Cold 5 A | MO | https://referencesource.org/iecc-climate-zone-by-county/mo-andrew/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Hot‐Dry | Andrews | [
"state"
] | tx-andrews | 3 | B | https://www.osti.gov/servlets/purl/1893981 | TX Andrews Hot‐Dry 3 B | TX | https://referencesource.org/iecc-climate-zone-by-county/tx-andrews/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Androscoggin | [
"state"
] | me-androscoggin | 6 | A | https://www.osti.gov/servlets/purl/1893981 | ME Androscoggin Cold 6 A | ME | https://referencesource.org/iecc-climate-zone-by-county/me-androscoggin/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Hot‐Humid | Angelina | [
"state"
] | tx-angelina | 2 | A | https://www.osti.gov/servlets/purl/1893981 | TX Angelina Hot‐Humid 2 A | TX | https://referencesource.org/iecc-climate-zone-by-county/tx-angelina/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Anne Arundel | [
"state"
] | md-anne-arundel | 4 | A | https://www.osti.gov/servlets/purl/1893981 | MD Anne Arundel Mixed‐Humid 4 A | MD | https://referencesource.org/iecc-climate-zone-by-county/md-anne-arundel/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Anoka | [
"state"
] | mn-anoka | 6 | A | https://www.osti.gov/servlets/purl/1893981 | MN Anoka Cold 6 A | MN | https://referencesource.org/iecc-climate-zone-by-county/mn-anoka/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Anson | [
"state"
] | nc-anson | 3 | A | https://www.osti.gov/servlets/purl/1893981 | NC Anson Mixed‐Humid 3 A | NC | https://referencesource.org/iecc-climate-zone-by-county/nc-anson/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Antelope | [
"state"
] | ne-antelope | 5 | A | https://www.osti.gov/servlets/purl/1893981 | NE Antelope Cold 5 A | NE | https://referencesource.org/iecc-climate-zone-by-county/ne-antelope/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Antrim | [
"state"
] | mi-antrim | 6 | A | https://www.osti.gov/servlets/purl/1893981 | MI Antrim Cold 6 A | MI | https://referencesource.org/iecc-climate-zone-by-county/mi-antrim/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Apache | [
"state"
] | az-apache | 5 | B | https://www.osti.gov/servlets/purl/1893981 | AZ Apache Cold 5 B | AZ | https://referencesource.org/iecc-climate-zone-by-county/az-apache/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Appanoose | [
"state"
] | ia-appanoose | 5 | A | https://www.osti.gov/servlets/purl/1893981 | IA Appanoose Cold 5 A | IA | https://referencesource.org/iecc-climate-zone-by-county/ia-appanoose/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Hot‐Humid | Appling | [
"state"
] | ga-appling | 2 | A | https://www.osti.gov/servlets/purl/1893981 | GA Appling Hot‐Humid 2 A | GA | https://referencesource.org/iecc-climate-zone-by-county/ga-appling/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Appomattox | [
"state"
] | va-appomattox | 4 | A | https://www.osti.gov/servlets/purl/1893981 | VA Appomattox Mixed‐Humid 4 A | VA | https://referencesource.org/iecc-climate-zone-by-county/va-appomattox/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Hot‐Humid | Aransas | [
"state"
] | tx-aransas | 2 | A | https://www.osti.gov/servlets/purl/1893981 | TX Aransas Hot‐Humid 2 A | TX | https://referencesource.org/iecc-climate-zone-by-county/tx-aransas/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Arapahoe | [
"state"
] | co-arapahoe | 5 | B | https://www.osti.gov/servlets/purl/1893981 | CO Arapahoe Cold 5 B | CO | https://referencesource.org/iecc-climate-zone-by-county/co-arapahoe/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Archer | [
"state"
] | tx-archer | 3 | A | https://www.osti.gov/servlets/purl/1893981 | TX Archer Mixed‐Humid 3 A | TX | https://referencesource.org/iecc-climate-zone-by-county/tx-archer/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Archuleta | [
"state"
] | co-archuleta | 6 | B | https://www.osti.gov/servlets/purl/1893981 | CO Archuleta Cold 6 B | CO | https://referencesource.org/iecc-climate-zone-by-county/co-archuleta/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Arenac | [
"state"
] | mi-arenac | 6 | A | https://www.osti.gov/servlets/purl/1893981 | MI Arenac Cold 6 A | MI | https://referencesource.org/iecc-climate-zone-by-county/mi-arenac/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Arkansas | [
"state"
] | ar-arkansas | 3 | A | https://www.osti.gov/servlets/purl/1893981 | AR Arkansas Mixed‐Humid 3 A | AR | https://referencesource.org/iecc-climate-zone-by-county/ar-arkansas/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Arlington | [
"state"
] | va-arlington | 4 | A | https://www.osti.gov/servlets/purl/1893981 | VA Arlington Mixed‐Humid 4 A | VA | https://referencesource.org/iecc-climate-zone-by-county/va-arlington/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Armstrong | [
"state"
] | pa-armstrong | 5 | A | https://www.osti.gov/servlets/purl/1893981 | PA Armstrong Cold 5 A | PA | https://referencesource.org/iecc-climate-zone-by-county/pa-armstrong/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Dry | Armstrong | [
"state"
] | tx-armstrong | 4 | B | https://www.osti.gov/servlets/purl/1893981 | TX Armstrong Mixed‐Dry 4 B | TX | https://referencesource.org/iecc-climate-zone-by-county/tx-armstrong/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Very Cold | Aroostook | [
"state"
] | me-aroostook | 7 | null | https://www.osti.gov/servlets/purl/1893981 | ME Aroostook Very Cold 7 | ME | https://referencesource.org/iecc-climate-zone-by-county/me-aroostook/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone"
] | null | null |
Cold | Arthur | [
"state"
] | ne-arthur | 5 | A | https://www.osti.gov/servlets/purl/1893981 | NE Arthur Cold 5 A | NE | https://referencesource.org/iecc-climate-zone-by-county/ne-arthur/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Hot‐Humid | Ascension | [
"state"
] | la-ascension | 2 | A | https://www.osti.gov/servlets/purl/1893981 | LA Ascension Hot‐Humid 2 A | LA | https://referencesource.org/iecc-climate-zone-by-county/la-ascension/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Ashe | [
"state"
] | nc-ashe | 5 | A | https://www.osti.gov/servlets/purl/1893981 | NC Ashe Cold 5 A | NC | https://referencesource.org/iecc-climate-zone-by-county/nc-ashe/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Ashland | [
"state"
] | oh-ashland | 5 | A | https://www.osti.gov/servlets/purl/1893981 | OH Ashland Cold 5 A | OH | https://referencesource.org/iecc-climate-zone-by-county/oh-ashland/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Ashland | [
"state"
] | wi-ashland | 6 | A | https://www.osti.gov/servlets/purl/1893981 | WI Ashland Very Cold→ 7→6 NONE→ A | WI | https://referencesource.org/iecc-climate-zone-by-county/wi-ashland/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime",
"zone_changed_from"
] | 7→6 | Very Cold→Cold |
Mixed‐Humid | Ashley | [
"state"
] | ar-ashley | 3 | A | https://www.osti.gov/servlets/purl/1893981 | AR Ashley Mixed‐Humid 3 A | AR | https://referencesource.org/iecc-climate-zone-by-county/ar-ashley/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Ashtabula | [
"state"
] | oh-ashtabula | 5 | A | https://www.osti.gov/servlets/purl/1893981 | OH Ashtabula Cold 5 A | OH | https://referencesource.org/iecc-climate-zone-by-county/oh-ashtabula/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Asotin | [
"state"
] | wa-asotin | 5 | B | https://www.osti.gov/servlets/purl/1893981 | WA Asotin Cold 5 B | WA | https://referencesource.org/iecc-climate-zone-by-county/wa-asotin/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Hot‐Humid | Assumption | [
"state"
] | la-assumption | 2 | A | https://www.osti.gov/servlets/purl/1893981 | LA Assumption Hot‐Humid 2 A | LA | https://referencesource.org/iecc-climate-zone-by-county/la-assumption/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Hot‐Humid | Atascosa | [
"state"
] | tx-atascosa | 2 | A | https://www.osti.gov/servlets/purl/1893981 | TX Atascosa Hot‐Humid 2 A | TX | https://referencesource.org/iecc-climate-zone-by-county/tx-atascosa/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Atchison | [
"state"
] | ks-atchison | 4 | A | https://www.osti.gov/servlets/purl/1893981 | KS Atchison Mixed‐Humid 4 A | KS | https://referencesource.org/iecc-climate-zone-by-county/ks-atchison/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Cold | Atchison | [
"state"
] | mo-atchison | 5 | A | https://www.osti.gov/servlets/purl/1893981 | MO Atchison Cold 5 A | MO | https://referencesource.org/iecc-climate-zone-by-county/mo-atchison/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
Mixed‐Humid | Athens | [
"state"
] | oh-athens | 4 | A | https://www.osti.gov/servlets/purl/1893981 | OH Athens Cold→ Mixed‐ 5→4 A Humid | OH | https://referencesource.org/iecc-climate-zone-by-county/oh-athens/ | [
"county",
"iecc_2021_zone",
"moisture_regime",
"zone_changed_from"
] | 5→4 | Cold→Mixed‐Humid |
Hot‐Humid | Atkinson | [
"state"
] | ga-atkinson | 2 | A | https://www.osti.gov/servlets/purl/1893981 | GA Atkinson Hot‐Humid 2 A | GA | https://referencesource.org/iecc-climate-zone-by-county/ga-atkinson/ | [
"ba_climate_zone",
"county",
"iecc_2021_zone",
"moisture_regime"
] | null | null |
End of preview. Expand in Data Studio
IECC/Building America climate zone by U.S. county, 2021 code cycle
Canonical, always-current version: https://referencesource.org/iecc-climate-zone-by-county/ Machine-readable: https://referencesource.org/iecc-climate-zone-by-county/data.json — this mirror is a point-in-time copy.
- Last verified: 2026-09-30
- Stale after: 2028-08-18 (past this date, prefer the canonical copy — it re-verifies on a cadence this snapshot does not)
- Records: 3134
Which IECC climate zone (1-8, with A/B/C moisture regime) and which DOE Building America climate zone each U.S. county falls in under the 2021 code cycle, and whether that county's designation changed from the pre-2021 (2018 IECC) map. Answers 'what climate zone is my county in for insulation R-value and HVAC-sizing purposes' and 'did my county's zone change in the 2021 code' -- both load-bearing for code-compliance software, HVAC equipment sizing, and DOE Zero Energy Ready Home certification, and both wrong if answered from a pre-2021 map or a general knowledge cutoff. Source is a single DOE/Pacific Northwest National Laboratory report (PNNL-33270, Sept 2022) that prints one table row per county -- the free public proxy for ASHRAE Standard 169 Table B-1, which is paywalled. No free site was found that republishes PNNL's full, current, cited county table as clean HTML; the closest match (a GitHub gist CSV) carries no source citation or edition statement.
Provenance — what every record carries
Every record carries source (the URL the value was read from) and
source_quote (a verbatim quote from that page stating it). A value you
cannot check against its page is indistinguishable from an invented one;
these can all be checked. Each record is also individually addressable on
the canonical site at its url.
Licence position
US government work (DOE / Pacific Northwest National Laboratory, operated by Battelle for DOE under contract DE-AC05-76RL01830) -- public domain. Facts taken with short attributed quotes linking back to the published report.
Facts are not copyrightable; what this dataset takes from each source is a fact plus a short attributed quote linking back to the page that states it.
Sources
Fields
See any record in data/records.jsonl — field names are self-describing,
and the canonical page for each record renders them with labels:
https://referencesource.org/iecc-climate-zone-by-county/
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