California weather in September: Statewide normals and every place, NOAA 1991-2020
In September, California's statewide normal high is 85°F and normal low 56°F; normal highs run from 64°F in Eureka to 104°F in Brawley (NOAA 1991-2020 normals).
- Statewide normal high
- 85°FSeptember, 1991-2020
- Statewide normal low
- 56°FSeptember, 1991-2020
- Statewide normal precipitation
- 0.28 inSeptember
- Warmest place
- 104°Fnormal high, Brawley
- Coolest place
- 64°Fnormal high, Eureka
Where is California warmest and wettest in September?
Brawley has the warmest September afternoons (104°F) and Eureka the coolest (64°F). Klamath gets the most precipitation (1.26 in) and Pomona the least (0.01 in).
Statewide, September averaged 72.2°F in 2021, 73.8°F in 2022, 68.1°F in 2023, 72.5°F in 2024, 71.3°F in 2025, against a 1991-2020 normal of 70.6°F.
| Place | High | Low | Precip. | Snow |
|---|---|---|---|---|
| Los Angeles | 83°F | 64°F | 0.13 | – |
| San Diego | 77°F | 66°F | 0.12 | – |
| San Jose | 81°F | 57°F | 0.07 | – |
| San Francisco | 70°F | 56°F | 0.10 | – |
| Fresno | 91°F | 63°F | 0.05 | 0.0 |
| Sacramento | 89°F | 57°F | 0.09 | – |
| Long Beach | 82°F | 64°F | 0.08 | – |
| Oakland | 74°F | 56°F | 0.10 | – |
| Bakersfield | 91°F | 65°F | 0.05 | 0.0 |
| Anaheim | 88°F | 64°F | 0.15 | 0.0 |
| Stockton | 90°F | 58°F | 0.08 | – |
| Riverside | 91°F | 62°F | 0.11 | – |
| Irvine | 89°F | 62°F | 0.10 | – |
| Santa Ana | 80°F | 65°F | 0.10 | – |
| Chula Vista | 77°F | 64°F | 0.09 | 0.0 |
| Fremont | 78°F | 56°F | 0.10 | 0.0 |
| Modesto | 89°F | 59°F | 0.06 | – |
| Oxnard | 74°F | 60°F | 0.08 | – |
| Ontario | 91°F | 64°F | 0.10 | – |
| Santa Rosa | 83°F | 50°F | 0.13 | – |
| Oceanside | 78°F | 59°F | 0.13 | – |
| Lancaster | 91°F | 57°F | 0.12 | – |
| Palmdale | 92°F | 59°F | 0.16 | – |
| Salinas | 74°F | 54°F | 0.05 | – |
| Hayward | 77°F | 58°F | 0.08 | – |
| Sunnyvale | 78°F | 57°F | 0.07 | – |
| Escondido | 87°F | 63°F | 0.16 | 0.0 |
| Pomona | 89°F | 60°F | 0.01 | 0.0 |
| Visalia | 88°F | 60°F | 0.07 | 0.0 |
| Victorville | 91°F | 58°F | 0.16 | 0.0 |
| Fullerton | 85°F | 65°F | 0.14 | – |
| Torrance | 78°F | 61°F | 0.09 | 0.0 |
| Pasadena | 90°F | 62°F | 0.22 | 0.0 |
| Concord | 85°F | 58°F | 0.06 | – |
| Vallejo | 86°F | 57°F | 0.08 | – |
| Fairfield | 87°F | 57°F | 0.08 | 0.0 |
| Berkeley | 76°F | 54°F | 0.12 | 0.0 |
| Antioch | 87°F | 59°F | 0.06 | 0.0 |
| Richmond | 75°F | 56°F | 0.03 | 0.0 |
| Carlsbad | 76°F | 64°F | 0.11 | – |
| Santa Maria | 75°F | 54°F | 0.07 | – |
| Vacaville | 91°F | 56°F | 0.06 | – |
| Burbank | 87°F | 63°F | 0.11 | – |
| El Cajon | 87°F | 62°F | 0.11 | 0.0 |
| Chico | 91°F | 55°F | 0.25 | – |
| Hesperia | 91°F | 61°F | 0.17 | – |
| Tracy | 89°F | 54°F | 0.08 | – |
| Vista | 81°F | 61°F | 0.16 | – |
| Merced | 91°F | 57°F | 0.05 | – |
| Indio | 101°F | 77°F | 0.13 | 0.0 |
| Chino | 93°F | 60°F | 0.06 | – |
| Redding | 92°F | 58°F | 0.45 | 0.0 |
| Hemet | 92°F | 62°F | 0.37 | 0.0 |
| Santa Monica | 76°F | 62°F | 0.14 | – |
| Santa Barbara | 74°F | 56°F | 0.07 | – |
| Livermore | 85°F | 55°F | 0.08 | – |
| Hawthorne | 79°F | 65°F | 0.17 | – |
| Redwood City | 79°F | 54°F | 0.07 | 0.0 |
| Newport Beach | 74°F | 64°F | 0.10 | 0.0 |
| Tustin | 87°F | 61°F | 0.18 | 0.0 |
| Napa | 80°F | 51°F | 0.07 | – |
| Redlands | 92°F | 60°F | 0.13 | 0.0 |
| Lake Elsinore | 93°F | 61°F | 0.17 | 0.0 |
| Turlock | 88°F | 62°F | 0.03 | 0.0 |
| Camarillo | 80°F | 59°F | 0.06 | – |
| Madera | 92°F | 58°F | 0.03 | – |
| Lodi | 89°F | 56°F | 0.10 | 0.0 |
| Redondo Beach | 76°F | 62°F | 0.12 | – |
| Palo Alto | 80°F | 53°F | 0.07 | 0.0 |
| Davis | 90°F | 55°F | 0.09 | 0.0 |
| Porterville | 92°F | 62°F | 0.06 | – |
| Woodland | 90°F | 56°F | 0.16 | 0.0 |
| Santa Cruz | 77°F | 53°F | 0.10 | 0.0 |
| Hanford | 92°F | 57°F | 0.04 | – |
| Gilroy | 85°F | 53°F | 0.04 | 0.0 |
| San Rafael | 81°F | 54°F | 0.07 | 0.0 |
| Petaluma | 82°F | 51°F | 0.09 | 0.0 |
| San Jacinto | 92°F | 61°F | 0.26 | 0.0 |
| Delano | 91°F | 62°F | 0.04 | 0.0 |
| Watsonville | 75°F | 52°F | 0.07 | – |
| San Luis Obispo | 80°F | 53°F | 0.04 | – |
| Los Banos | 90°F | 60°F | 0.05 | 0.0 |
| Newark | 77°F | 58°F | 0.09 | 0.0 |
| Palm Springs | 102°F | 74°F | 0.24 | – |
| Hollister | 81°F | 53°F | 0.05 | 0.0 |
| El Centro | 102°F | 72°F | 0.18 | – |
| Lompoc | 75°F | 55°F | 0.05 | 0.0 |
| Culver City | 78°F | 62°F | 0.13 | 0.0 |
| San Gabriel | 87°F | 64°F | 0.13 | 0.0 |
| Pacifica | 72°F | 53°F | 0.11 | 0.0 |
| Martinez | 84°F | 50°F | 0.06 | 0.0 |
| Oildale | 91°F | 64°F | 0.11 | – |
| Los Gatos | 83°F | 54°F | 0.05 | 0.0 |
| Fallbrook | 88°F | 62°F | 0.11 | – |
| Paso Robles | 90°F | 50°F | 0.06 | 0.0 |
| Monterey | 71°F | 54°F | 0.07 | – |
| Brawley | 104°F | 71°F | 0.09 | 0.0 |
| Wasco | 94°F | 62°F | 0.03 | 0.0 |
| Lemoore | 92°F | 57°F | 0.04 | – |
| Twentynine Palms | 97°F | 69°F | 0.34 | – |
| Imperial Beach | 75°F | 62°F | 0.14 | – |
| Eureka | 64°F | 51°F | 0.68 | 0.0 |
| Barstow | 96°F | 66°F | 0.17 | 0.0 |
| Ramona | 87°F | 55°F | 0.15 | – |
| Shafter | 91°F | 57°F | 0.08 | – |
| Corcoran | 92°F | 58°F | – | – |
| Laguna Beach | 81°F | 59°F | 0.16 | 0.0 |
| Imperial | 100°F | 73°F | 0.26 | 0.0 |
| Yucca Valley | 89°F | 60°F | 0.15 | 0.0 |
| Stevenson Ranch | 91°F | 62°F | 0.11 | 0.0 |
| South Lake Tahoe | 73°F | 35°F | 0.28 | – |
| Oroville | 89°F | 59°F | 0.16 | – |
| Arcata | 65°F | 49°F | 0.85 | – |
| Blythe | 102°F | 74°F | 0.32 | – |
| Truckee | 76°F | 34°F | 0.63 | 0.5 |
| Coalinga | 95°F | 61°F | 0.06 | 0.0 |
| Clearlake | 85°F | 50°F | 0.17 | 0.0 |
| Ukiah | 89°F | 51°F | 0.16 | – |
| Alpine | 86°F | 60°F | 0.25 | – |
| Red Bluff | 91°F | 59°F | 0.19 | – |
| Grass Valley | 82°F | 52°F | 0.44 | 0.0 |
| King City | 85°F | 52°F | 0.06 | 0.0 |
| Auburn | 87°F | 60°F | 0.24 | – |
| Marysville | 90°F | 56°F | 0.11 | – |
| Lindsay | 91°F | 57°F | 0.07 | 0.0 |
| Susanville | 80°F | 45°F | 0.24 | – |
| Newman | 95°F | 57°F | 0.04 | 0.0 |
| Half Moon Bay | 66°F | 51°F | 0.21 | 0.0 |
| Healdsburg | 85°F | 52°F | 0.10 | 0.0 |
| Tehachapi | 81°F | 51°F | 0.15 | – |
| Lake Arrowhead | 74°F | 52°F | 0.31 | 0.0 |
| Placerville | 88°F | 56°F | – | – |
| Sonoma | 85°F | 51°F | 0.07 | 0.0 |
| Morro Bay | 72°F | 56°F | 0.09 | 0.0 |
| Valley Center | 91°F | 56°F | 0.17 | – |
| Paradise | 86°F | 62°F | 0.41 | 0.0 |
| Cloverdale | 90°F | 54°F | 0.13 | 0.0 |
| Orland | 90°F | 58°F | 0.24 | 0.0 |
| Pismo Beach | 72°F | 54°F | 0.08 | 0.0 |
| Winters | 91°F | 57°F | 0.09 | 0.0 |
| Yreka | 84°F | 47°F | 0.41 | 0.0 |
| Ojai | 88°F | 51°F | 0.10 | 0.0 |
| Kentfield | 82°F | 53°F | 0.09 | 0.0 |
| Mammoth Lakes | 71°F | 40°F | 0.47 | – |
| Fort Bragg | 65°F | 49°F | 0.25 | 0.0 |
| Mecca | 102°F | 74°F | 0.30 | 0.0 |
| Taft | 92°F | 62°F | 0.06 | 0.0 |
| Ben Lomond | 89°F | 49°F | 0.12 | 0.0 |
| Joshua Tree | 93°F | 64°F | 0.22 | 0.0 |
| Colusa | 89°F | 54°F | 0.11 | 0.0 |
| Crescent City | 65°F | 50°F | 1.10 | – |
| Willows | 91°F | 58°F | 0.22 | – |
| St. Helena | 87°F | 54°F | 0.06 | 0.0 |
| Woodside | 87°F | 51°F | – | – |
| Big Bear Lake | 73°F | 44°F | 0.40 | 0.0 |
| Calistoga | 87°F | 52°F | 0.12 | 0.0 |
| Wrightwood | 75°F | 46°F | 0.38 | 0.0 |
| Sonora | 87°F | 51°F | 0.20 | 0.0 |
| Willits | 82°F | 42°F | 0.37 | – |
| Needles | 103°F | 77°F | 0.34 | 0.0 |
| Mojave | 90°F | 61°F | 0.10 | 0.0 |
| Morongo Valley | 88°F | 66°F | 0.17 | – |
| Bishop | 90°F | 47°F | 0.11 | – |
| Avalon | 78°F | 63°F | 0.12 | – |
| Weaverville | 89°F | 44°F | 0.31 | 0.0 |
| Nevada City | 82°F | 55°F | 0.53 | 0.0 |
| Mount Shasta | 78°F | 45°F | 0.51 | – |
| Auberry | 88°F | 62°F | 0.12 | 0.0 |
| Burney | 82°F | 38°F | 0.39 | 0.0 |
| Angwin | 81°F | 53°F | 0.17 | – |
| Campo | 88°F | 51°F | 0.65 | – |
| Alturas | 80°F | 37°F | 0.35 | – |
| Georgetown | 86°F | 57°F | 0.41 | – |
| Three Rivers | 92°F | 58°F | 0.16 | 0.0 |
| Portola | 79°F | 37°F | 0.44 | 0.1 |
| Colfax | 86°F | 57°F | 0.35 | 0.0 |
| Chester | 79°F | 41°F | 0.31 | 0.0 |
| Graton | 84°F | 48°F | 0.18 | 0.0 |
| Dunsmuir | 84°F | 46°F | 0.68 | 0.0 |
| Quincy | 82°F | 40°F | 0.42 | 0.0 |
| Covelo | 88°F | 45°F | 0.20 | 0.0 |
| Julian | 81°F | 57°F | 0.35 | 0.0 |
| Shasta | 90°F | 63°F | 0.52 | – |
| Buttonwillow | 91°F | 60°F | 0.03 | 0.0 |
| Montague | 84°F | 45°F | 0.27 | – |
| Occidental | 77°F | 53°F | 0.18 | – |
| Tahoma | 69°F | 41°F | 0.60 | – |
| Inyokern | 94°F | 60°F | 0.18 | 0.0 |
| Kettleman City | 92°F | 61°F | 0.06 | – |
| Independence | 93°F | 58°F | 0.11 | – |
| McCloud | 84°F | 41°F | 0.58 | – |
| Tulelake | 79°F | 38°F | 0.37 | 0.0 |
| Klamath | 67°F | 50°F | 1.26 | 0.0 |
| Shelter Cove | 70°F | 54°F | – | – |
| Cedarville | 81°F | 44°F | 0.34 | 0.0 |
| Doyle | 80°F | 44°F | 0.39 | 0.1 |
| Groveland | 85°F | 50°F | 0.30 | 0.0 |
| Potter Valley | 90°F | 49°F | 0.30 | 0.0 |
| Scotia | 73°F | 52°F | 0.47 | – |
| Lee Vining | 76°F | 46°F | 0.31 | 0.0 |
| New Cuyama | 89°F | 52°F | 0.08 | – |
| Dobbins | 89°F | 51°F | 0.38 | – |
| Baker | 101°F | 68°F | 0.36 | 0.0 |
| Lemon Cove | 94°F | 59°F | 0.06 | 0.0 |
| Bridgeport | 78°F | 34°F | 0.23 | 0.0 |
| Friant | 92°F | 57°F | 0.07 | 0.0 |
| Bodega | 66°F | 51°F | 0.18 | – |
| Orick | 69°F | 45°F | – | – |
| Canby | 80°F | 38°F | – | – |
| Downieville | 83°F | 46°F | 0.66 | 0.0 |
| Fort Bidwell | 77°F | 45°F | 0.29 | 0.2 |
| Mount Laguna | 76°F | 54°F | 0.53 | – |
| Mineral | 77°F | 38°F | 0.51 | – |
| Randsburg | 92°F | 62°F | 0.19 | 0.0 |
| Adin | 83°F | 43°F | 0.36 | 0.0 |
| Hat Creek | 85°F | 38°F | 0.38 | 0.0 |
| Verdi | 77°F | 47°F | 0.34 | – |
| Glennville | 84°F | 45°F | 0.13 | 0.0 |
| Ash Mountain | 91°F | 63°F | 0.18 | 0.0 |
| Balch Power House | 88°F | 64°F | 0.24 | – |
| Big Bar (4 mi E) | 89°F | 47°F | 0.44 | 0.0 |
| Big Sur Station | 77°F | 50°F | 0.13 | 0.0 |
| Blue Canyon Airport | 73°F | 57°F | 0.59 | – |
| Boca | 79°F | 31°F | 0.48 | 0.1 |
| Bodie California St Historic P | 71°F | 28°F | 0.22 | 0.1 |
| Borrego Desert Park | 101°F | 72°F | 0.15 | 0.0 |
| Bowman Dam | 77°F | 51°F | – | – |
| Cachuma Lake | 91°F | 47°F | 0.08 | 0.0 |
| Calaveras Big Trees | 74°F | 51°F | 0.39 | 0.0 |
| Callahan | 83°F | 43°F | 0.38 | 0.0 |
| Camp Pardee | 88°F | 61°F | 0.17 | 0.0 |
| Camp Pendleton Marine Corps Air Station | 83°F | 58°F | – | – |
| Canyon Dam | 79°F | 44°F | 0.35 | 0.0 |
| Carmel Valley | 81°F | 51°F | 0.05 | – |
| Cecilville | 89°F | 45°F | – | – |
| Cherry Valley Dam | 82°F | 53°F | 0.43 | 0.0 |
| China Lake Naf | 95°F | 61°F | 0.24 | – |
| Chiriaco Summit | 96°F | 68°F | 0.51 | – |
| Concord Wastewater Treatment Plant | 86°F | 58°F | 0.06 | 0.0 |
| Copco #1 Dam | 85°F | 49°F | 0.48 | 0.0 |
| Cuyamaca | 79°F | 51°F | 0.57 | 0.0 |
| De Sabla | 86°F | 53°F | 0.41 | 0.0 |
| Death Valley National Park | 108°F | 79°F | 0.20 | 0.0 |
| Desert Resorts Regional Airport | 102°F | 68°F | 0.32 | 0.0 |
| Donner Mem State Park | 75°F | 36°F | 0.49 | 0.0 |
| Eagle Mountain | 97°F | 76°F | 0.36 | 0.0 |
| East Park Reservoir | 89°F | 52°F | 0.15 | 0.0 |
| El Capitan Dam | 94°F | 55°F | 0.13 | 0.0 |
| El Mirage | 90°F | 57°F | 0.28 | 0.0 |
| Fairmont | 88°F | 62°F | 0.15 | 0.0 |
| Five Points (5 mi SSW) | 94°F | 58°F | – | – |
| Fort Ross | 67°F | 48°F | 0.17 | – |
| Getty Center | 82°F | 63°F | 0.13 | 0.0 |
| Gibraltar Dam #2 | 91°F | 51°F | 0.09 | – |
| Grant Grove | 73°F | 47°F | 0.32 | 0.0 |
| Grizzly Creek State Park | 72°F | 49°F | 0.51 | 0.0 |
| Haiwee | 87°F | 54°F | 0.21 | – |
| Hayfield Pumping Plant | 100°F | 68°F | 0.50 | 0.0 |
| Hearst Castle | 78°F | 60°F | 0.07 | 0.0 |
| Henshaw Dam | 89°F | 49°F | 0.44 | – |
| Hetch Hetchy | 81°F | 54°F | 0.37 | 0.0 |
| Huntington Lake | 68°F | 44°F | 0.40 | – |
| Idyllwild Fire Dept | 81°F | 50°F | 0.79 | 0.0 |
| Iron Mountain | 102°F | 75°F | – | – |
| Jess Valley | 77°F | 39°F | 0.58 | 0.1 |
| Johnson Valley | 90°F | 62°F | 0.24 | – |
| Kern River Powerhouse 3 | 92°F | 56°F | 0.23 | – |
| Lake Solano | 91°F | 56°F | – | – |
| Lake Spaulding | 76°F | 44°F | – | – |
| Lava Beds Nat Mon | 78°F | 45°F | 0.44 | 0.0 |
| Lodgepole | 70°F | 39°F | 0.65 | 0.0 |
| Loraine (5 mi NNE) | 84°F | 51°F | 0.11 | – |
| Manzanita Lake | 72°F | 41°F | 0.65 | – |
| Markley Cove | 90°F | 53°F | 0.07 | 0.0 |
| Mitchell Caverns | 85°F | 68°F | 0.70 | 0.0 |
| Mount Diablo Junction | 80°F | 60°F | 0.12 | 0.0 |
| Mount Hamilton | 75°F | 60°F | 0.17 | 0.0 |
| Mount Wilson CBS | 81°F | 59°F | 0.32 | – |
| Napa State Hospital | 84°F | 53°F | 0.09 | 0.0 |
| New Melones Dam Headquarters | 91°F | 60°F | 0.21 | 0.0 |
| North Fork Ranger Station | 90°F | 52°F | 0.20 | – |
| North Island Naval Air Station | 77°F | 65°F | 0.16 | 0.0 |
| Northridge Cal State | 89°F | 62°F | 0.09 | 0.0 |
| Oakland Museum | 75°F | 57°F | 0.10 | 0.0 |
| Oceanside Marina | 71°F | 64°F | 0.16 | 0.0 |
| Ocotillo Wells (2 mi W) | 102°F | 78°F | 0.26 | – |
| Orleans | 86°F | 52°F | 0.76 | 0.0 |
| Pacific House | 83°F | 49°F | 0.55 | 0.0 |
| Paicines (4 mi W) | 83°F | 47°F | – | – |
| Palomar Mountain Obsy | 79°F | 60°F | 0.48 | 0.0 |
| Parker Resrvoir | 101°F | 75°F | 0.57 | 0.0 |
| Pearblossom | 91°F | 62°F | 0.20 | 0.0 |
| Pinnacles National Monument | 92°F | 48°F | 0.06 | 0.0 |
| Point Mugu NF | 73°F | 57°F | 0.08 | – |
| Priest Valley | 91°F | 47°F | 0.05 | 0.0 |
| Rancho Bernardo | 81°F | 60°F | 0.17 | – |
| Richardson Grove State Park | 83°F | 50°F | 0.41 | 0.0 |
| Sacramento Metro Airport | 89°F | 55°F | 0.09 | – |
| Sagehen Creek | 73°F | 31°F | – | – |
| San Diego Miramar Naval Air Station | 82°F | 63°F | 0.14 | – |
| San Diego Montgomery Field | 81°F | 64°F | 0.17 | – |
| San Diego Seaworld | 73°F | 64°F | 0.15 | – |
| San Francisco Oceanside | 65°F | 55°F | 0.11 | 0.0 |
| San Gregorio (2 mi SE) | 72°F | 49°F | 0.17 | 0.0 |
| San Luis Dam | 89°F | 61°F | 0.02 | 0.0 |
| San Luis Obispo Poly | 80°F | 54°F | 0.11 | 0.0 |
| San Pasqual Animal Park | 91°F | 58°F | 0.14 | 0.0 |
| Sandberg | 83°F | 61°F | 0.13 | – |
| Santa Ana Fire Station | 84°F | 64°F | 0.12 | 0.0 |
| Santa Monica Pier | 70°F | 61°F | 0.03 | 0.0 |
| Skyline Ridge Preserve | 79°F | 57°F | 0.18 | – |
| So Entrance Yosemite National Park | 75°F | 45°F | 0.47 | – |
| South Lake FS | 91°F | 55°F | – | – |
| Stony Gorge Reservoir | 90°F | 54°F | 0.12 | 0.0 |
| Stovepipe Wells (1 mi SW) | 105°F | 79°F | 0.04 | – |
| Strawberry Valley | 80°F | 48°F | 0.50 | 0.0 |
| Sutter Hill Fire Station | 87°F | 60°F | 0.26 | – |
| Tahoe City | 70°F | 41°F | 0.42 | 0.1 |
| Trinity River Hatchery | 89°F | 46°F | 0.33 | 0.0 |
| Trona | 99°F | 67°F | 0.09 | 0.0 |
| Tuolumne Meadows Ranger Station | 65°F | 32°F | 0.52 | – |
| Twitchell Dam | 78°F | 52°F | 0.07 | 0.0 |
| U C L A | 79°F | 63°F | 0.15 | 0.0 |
| Van Nuys Airport | 90°F | 63°F | 0.12 | – |
| Watsonville Water Works | 74°F | 53°F | 0.06 | 0.0 |
| Whiskeytown Reservoir | 92°F | 61°F | 0.46 | – |
| Woodland Hills Pierce College | 94°F | 59°F | 0.09 | 0.0 |
| Yosemite Park Headquarters | 83°F | 51°F | 0.40 | – |
| Yosemite Village (12 mi W) | 70°F | 54°F | 0.66 | – |
| Yucca Mesa | 89°F | 64°F | 0.27 | – |
Source: NOAA NCEI nClimDiv statewide normals; NOAA NCEI 1991-2020 monthly normals for each station.