Average September Temperatures at Cities in California

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Average daily high and low temperatures for September 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 1981 to 2010 by the US National Climatic Data Center.

Southern California

Average September temperatures
High °F Low °F Place High °C Low °C
87 63 Anaheim 31 17
90 64 Bakersfield 32 18
86 60 Burbank 30 16
78 63 Chula Vista 26 17
101 72 El Centro 39 22
87 62 Escondido 30 16
84 63 Fullerton 29 17
89 58 Irvine 32 15
91 57 Lancaster 33 14
82 63 Long Beach 28 17
83 63 Los Angeles 28 17
71 62 Oceanside 22 17
89 63 Ontario 32 17
74 59 Oxnard 23 15
92 59 Palmdale 33 15
89 63 Pasadena 32 17
89 60 Pomona 32 16
92 61 Riverside 34 16
74 54 Salinas 23 12
93 61 San Bernardino 34 16
76 65 San Diego 24 18
77 54 San Luis Obispo 25 12
84 62 Santa Ana 29 17
75 60 Santa Barbara 24 15
83 58 Thousand Oaks 28 14
78 61 Torrance 25 16
93 56 Victorville 34 13
88 60 Visalia 31 16

Northern California

September temperature averages
High °F Low °F Place High °C Low °C
86 57 Antioch 30 14
75 53 Berkeley 24 12
90 55 Chico 32 13
85 57 Concord 30 14
89 54 Davis 32 12
86 56 Fairfield 30 13
89 58 Folsom 32 14
78 56 Fremont 26 13
91 62 Fresno 33 16
76 57 Hayward 24 14
86 55 Livermore 30 13
89 57 Madera 32 14
90 56 Merced 32 13
89 59 Modesto 32 15
83 53 Napa 28 12
77 58 Newark 25 14
74 57 Oakland 23 14
80 53 Palo Alto 26 11
82 51 Petaluma 28 11
93 61 Porterville 34 16
90 58 Redding 32 14
80 54 Redwood City 27 12
74 56 Richmond 23 13
87 56 Sacramento 31 13
70 55 San Francisco 21 13
80 57 San Jose 27 14
79 54 San Rafael 26 12
83 52 Santa Rosa 28 11
90 56 Stockton 32 13
88 60 Tracy 31 15
87 59 Turlock 31 15
91 57 Vacaville 33 14
74 53 Watsonville 23 11
89 58 Woodland 32 14
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

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