Average December Temperatures at Cities in California





Average daily high and low temperatures for December at dozens of cities throughout California are listed below in degrees Fahrenheit and Celsius.

You can jump to separate tables for cities in Southern California and Northern California.

The tables give the normal maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Northern California

December temperature averages
High °F Low °F Place High °C Low °C
56 40 Antioch 13 5
59 43 Berkeley 15 6
57 36 Chico 14 2
55 33 Clearlake 13 0
59 41 Concord 15 5
56 38 Davis 13 3
55 40 Eureka 13 4
57 40 Fairfield 14 5
58 43 Fremont 15 6
55 40 Fresno 13 4
53 33 Grass Valley 11 0
59 43 Hayward 15 6
57 39 Livermore 14 4
55 36 Madera 13 2
55 36 Merced 13 2
56 39 Modesto 13 4
59 40 Napa 15 4
58 43 Newark 15 6
60 45 Oakland 15 7
High °F Low °F Place High °C Low °C
58 38 Petaluma 14 4
59 39 Porterville 15 4
56 38 Red Bluff 13 3
56 37 Redding 13 3
59 40 Redwood City 15 5
58 44 Richmond 15 7
56 41 Sacramento 14 5
58 47 San Francisco 14 8
60 42 San Jose 15 5
57 42 San Rafael 14 6
59 38 Santa Rosa 15 3
55 32 Sonora 13 0
59 39 Stockton 15 4
57 40 Tracy 14 5
55 42 Turlock 13 6
56 36 Ukiah 13 2
58 40 Vacaville 14 4
58 42 Vallejo 14 6
62 39 Watsonville 17 4
56 38 Woodland 14 3
55 38 Yuba City 13 3

Southern California

Average December temperatures
High °F Low °F Place High °C Low °C
71 48 Anaheim 21 9
59 40 Bakersfield 15 4
68 42 Burbank 20 5
67 46 Chula Vista 19 8
70 43 El Centro 21 6
68 44 Escondido 20 7
68 46 Fullerton 20 8
56 36 Hanford 14 2
68 48 Irvine 20 9
58 30 Lancaster 14 -1
67 47 Long Beach 19 8
67 48 Los Angeles 20 9
63 47 Oceanside 17 8
67 44 Ontario 19 6
66 47 Oxnard 19 8
58 34 Palmdale 15 1
67 45 Pasadena 20 7
67 42 Pomona 19 5
67 43 Riverside 19 6
62 41 Salinas 16 5
66 50 San Diego 19 10
64 44 San Luis Obispo 18 7
68 48 Santa Ana 20 9
66 46 Santa Barbara 19 8
62 41 Santa Cruz 16 5
66 46 Torrance 19 8
57 33 Victorville 14 0
55 38 Visalia 13 3
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

California City
Temperatures
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