Temperature Change since 1900 by County
How much warmer the county is now than a century ago: the 1991 to 2020 average minus the 1895 to 1924 average. Positive means warmer. Warming is uneven, and a few places have cooled slightly.
See Temperature Change since 1900 on the interactive map →
Highest counties
| County | Temperature Change since 1900 |
|---|---|
| Ventura County, California | 3.8°F |
| Grand County, Utah | 3.8°F |
| Montrose County, Colorado | 3.6°F |
| Mesa County, Colorado | 3.6°F |
| Rio Blanco County, Colorado | 3.6°F |
| Uintah County, Utah | 3.6°F |
| Santa Barbara County, California | 3.5°F |
| Roseau County, Minnesota | 3.5°F |
| Suffolk County, New York | 3.5°F |
| Kittson County, Minnesota | 3.5°F |
| Ouray County, Colorado | 3.4°F |
| Benzie County, Michigan | 3.4°F |
Lowest counties
| County | Temperature Change since 1900 |
|---|---|
| Conecuh County, Alabama | -0.5°F |
| Escambia County, Alabama | -0.2°F |
| Butler County, Alabama | -0.2°F |
| Covington County, Alabama | -0.2°F |
| Crenshaw County, Alabama | -0.2°F |
| Pontotoc County, Mississippi | -0.1°F |
| Chickasaw County, Mississippi | -0.1°F |
| Jefferson Davis Parish, Louisiana | -0.1°F |
| Ouachita County, Arkansas | -0.1°F |
| Monroe County, Mississippi | -0.0°F |
| Calhoun County, Mississippi | -0.0°F |
| Lamar County, Alabama | -0.0°F |