NOAA's National Centers for Environmental Information
County Mapping
County Average Temperature
October - December 1920
0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F
California (Hover over a County)
TempAverage Temperature: 48.2°F
Rank: 6th Coldest
Anomaly: -2.5°F
Mean: 50.7°F
County | Value | Rank 130 Years | Anomaly | 1901- |
|---|---|---|---|---|
| Alameda County | 52.0°F | 14 | -1.9°F | 53.9°F |
| Alpine County | 35.9°F | 17 | -1.9°F | 37.7°F |
| Amador County | 50.3°F | 30 | -1.1°F | 51.3°F |
| Butte County | 49.0°F | 5 | -3.0°F | 52.0°F |
| Calaveras County | 50.3°F | 26 | -1.3°F | 51.5°F |
| Colusa County | 50.4°F | 5 | -2.8°F | 53.2°F |
| Contra Costa County | 51.9°F | 9 | -2.2°F | 54.1°F |
| Del Norte County | 44.2°F | 12 | -1.8°F | 46.0°F |
| El Dorado County | 45.9°F | 16 | -1.8°F | 47.7°F |
| Fresno County | 45.1°F | 6 | -2.7°F | 47.8°F |
| Glenn County | 49.2°F | 5 | -2.9°F | 52.1°F |
| Humboldt County | 46.5°F | 11 | -1.8°F | 48.2°F |
| Imperial County | 59.3°F | 2 | -4.2°F | 63.5°F |
| Inyo County | 48.1°F | 11 | -2.5°F | 50.6°F |
| Kern County | 51.9°F | 26 | -1.1°F | 53.0°F |
| Kings County | 52.4°F | 9 | -2.1°F | 54.5°F |
| Lake County | 48.1°F | 10 | -2.3°F | 50.4°F |
| Lassen County | 36.0°F | 17 | -2.5°F | 38.5°F |
| Los Angeles County | 51.9°F | 3 | -3.3°F | 55.2°F |
| Madera County | 46.2°F | 11 | -2.2°F | 48.4°F |
| Marin County | 51.8°F | 20 | -1.4°F | 53.2°F |
| Mariposa County | 46.2°F | 14 | -2.0°F | 48.2°F |
| Mendocino County | 48.3°F | 10 | -2.0°F | 50.4°F |
| Merced County | 52.4°F | 19 | -1.6°F | 53.9°F |
| Modoc County | 35.2°F | 15 | -2.8°F | 38.0°F |
| Mono County | 33.9°F | 8 | -2.6°F | 36.5°F |
| Monterey County | 52.6°F | 31 | -0.9°F | 53.5°F |
| Napa County | 51.3°F | 14 | -1.8°F | 53.1°F |
| Nevada County | 42.9°F | 6 | -3.1°F | 46.0°F |
| Orange County | 56.8°F | 2 | -3.4°F | 60.2°F |
| Placer County | 44.4°F | 7 | -2.8°F | 47.2°F |
| Plumas County | 37.1°F | 7 | -3.2°F | 40.3°F |
| Riverside County | 55.5°F | 2 | -3.9°F | 59.4°F |
| Sacramento County | 52.5°F | 9 | -2.2°F | 54.7°F |
| San Benito County | 50.5°F | 11 | -2.0°F | 52.5°F |
| San Bernardino County | 52.5°F | 3 | -3.6°F | 56.1°F |
| San Diego County | 53.0°F | 2 | -3.9°F | 56.9°F |
| San Francisco County | 52.5°F | 15 | -1.8°F | 54.3°F |
| San Joaquin County | 52.4°F | 13 | -1.9°F | 54.3°F |
| San Luis Obispo County | 52.8°F | 30 | -0.8°F | 53.6°F |
| San Mateo County | 51.8°F | 12 | -1.9°F | 53.6°F |
| Santa Barbara County | 51.8°F | 12 | -2.1°F | 53.8°F |
| Santa Clara County | 51.3°F | 18 | -1.6°F | 52.9°F |
| Santa Cruz County | 51.7°F | 14 | -1.7°F | 53.4°F |
| Shasta County | 44.7°F | 9 | -2.6°F | 47.4°F |
| Sierra County | 37.3°F | 7 | -3.1°F | 40.4°F |
| Siskiyou County | 39.0°F | 15 | -2.0°F | 41.0°F |
| Solano County | 52.4°F | 15 | -1.8°F | 54.2°F |
| Sonoma County | 51.1°F | 13 | -1.7°F | 52.8°F |
| Stanislaus County | 52.1°F | 16 | -1.6°F | 53.7°F |
| Sutter County | 52.1°F | 7 | -2.6°F | 54.7°F |
| Tehama County | 48.0°F | 6 | -3.0°F | 51.0°F |
| Trinity County | 42.8°F | 11 | -2.1°F | 44.9°F |
| Tulare County | 44.3°F | 9 | -2.1°F | 46.5°F |
| Tuolumne County | 41.4°F | 7 | -2.6°F | 44.0°F |
| Ventura County | 49.7°F | 6 | -3.0°F | 52.6°F |
| Yolo County | 52.2°F | 8 | -2.1°F | 54.3°F |
| Yuba County | 50.2°F | 5 | -3.0°F | 53.2°F |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: County Mapping, published June 2025, retrieved on July 6, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
