NOAA's National Centers for Environmental Information
County Mapping
County Average Temperature
March - May 1917
0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F
California (Hover over a County)
TempAverage Temperature: 50.2°F
Anomaly: -4.3°F
Rank: Coldest
Mean: 54.5°F
County | Value | Anomaly | Rank 130 Years | 1901- |
|---|---|---|---|---|
| Alameda County | 51.7°F | -3.9°F | 1 | 55.6°F |
| Alpine County | 35.9°F | -3.3°F | 9 | 39.2°F |
| Amador County | 51.3°F | -2.5°F | 15 | 53.8°F |
| Butte County | 53.0°F | -3.1°F | 7 | 56.1°F |
| Calaveras County | 51.6°F | -2.6°F | 13 | 54.2°F |
| Colusa County | 55.3°F | -2.8°F | 7 | 58.1°F |
| Contra Costa County | 53.5°F | -3.6°F | 1 | 57.0°F |
| Del Norte County | 43.5°F | -4.1°F | 1 | 47.6°F |
| El Dorado County | 46.3°F | -3.1°F | 10 | 49.3°F |
| Fresno County | 46.8°F | -4.5°F | 1 | 51.3°F |
| Glenn County | 53.4°F | -3.1°F | 6 | 56.5°F |
| Humboldt County | 46.3°F | -3.9°F | 1 | 50.1°F |
| Imperial County | 65.2°F | -4.8°F | 1 | 70.1°F |
| Inyo County | 52.0°F | -5.0°F | 1 | 57.1°F |
| Kern County | 52.7°F | -4.9°F | 1 | 57.6°F |
| Kings County | 55.7°F | -5.1°F | 1 | 60.8°F |
| Lake County | 49.9°F | -2.7°F | 7 | 52.6°F |
| Lassen County | 38.3°F | -5.1°F | 1 | 43.4°F |
| Los Angeles County | 52.4°F | -4.1°F | 2 | 56.5°F |
| Madera County | 47.9°F | -4.2°F | 1 | 52.1°F |
| Marin County | 50.5°F | -2.6°F | 3 | 53.1°F |
| Mariposa County | 47.4°F | -3.6°F | 7 | 51.0°F |
| Mendocino County | 48.9°F | -2.7°F | 5 | 51.6°F |
| Merced County | 55.8°F | -3.5°F | 3 | 59.3°F |
| Modoc County | 35.7°F | -7.2°F | 1 | 42.9°F |
| Mono County | 35.4°F | -4.4°F | 1 | 39.8°F |
| Monterey County | 50.3°F | -4.1°F | 1 | 54.4°F |
| Napa County | 53.1°F | -2.5°F | 4 | 55.7°F |
| Nevada County | 44.3°F | -3.9°F | 5 | 48.2°F |
| Orange County | 55.4°F | -4.0°F | 1 | 59.3°F |
| Placer County | 45.9°F | -3.6°F | 5 | 49.5°F |
| Plumas County | 40.1°F | -3.6°F | 4 | 43.7°F |
| Riverside County | 59.3°F | -4.6°F | 1 | 64.0°F |
| Sacramento County | 56.8°F | -2.7°F | 6 | 59.5°F |
| San Benito County | 50.0°F | -4.2°F | 1 | 54.1°F |
| San Bernardino County | 57.7°F | -5.0°F | 1 | 62.7°F |
| San Diego County | 53.4°F | -4.4°F | 1 | 57.8°F |
| San Francisco County | 51.3°F | -3.3°F | 1 | 54.6°F |
| San Joaquin County | 55.9°F | -3.4°F | 1 | 59.3°F |
| San Luis Obispo County | 51.9°F | -2.9°F | 3 | 54.9°F |
| San Mateo County | 49.8°F | -3.6°F | 1 | 53.4°F |
| Santa Barbara County | 50.1°F | -3.1°F | 4 | 53.2°F |
| Santa Clara County | 50.3°F | -3.8°F | 1 | 54.0°F |
| Santa Cruz County | 49.7°F | -3.7°F | 1 | 53.4°F |
| Shasta County | 46.4°F | -4.8°F | 2 | 51.2°F |
| Sierra County | 38.8°F | -4.2°F | 4 | 43.0°F |
| Siskiyou County | 39.4°F | -5.1°F | 1 | 44.5°F |
| Solano County | 55.5°F | -2.8°F | 3 | 58.3°F |
| Sonoma County | 51.2°F | -2.5°F | 3 | 53.8°F |
| Stanislaus County | 54.8°F | -3.7°F | 2 | 58.5°F |
| Sutter County | 57.7°F | -2.6°F | 8 | 60.3°F |
| Tehama County | 51.0°F | -3.5°F | 6 | 54.6°F |
| Trinity County | 43.8°F | -4.2°F | 1 | 48.1°F |
| Tulare County | 45.1°F | -4.8°F | 1 | 49.9°F |
| Tuolumne County | 42.3°F | -3.3°F | 10 | 45.6°F |
| Ventura County | 48.1°F | -4.0°F | 2 | 52.1°F |
| Yolo County | 56.5°F | -2.6°F | 4 | 59.1°F |
| Yuba County | 54.3°F | -3.1°F | 8 | 57.4°F |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: County Mapping, published March 2025, retrieved on April 4, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
