Chico, CA

Climate overview — based on NOAA 1991-2020 normals from CHICO UNIV FARM, CA US.

Csa Hot-summer Mediterranean climate 9a USDA hardiness Zone 9a

Year-round temperatures (°F)

30° 50° 70° 90° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Chico has an annual average temperature of 61.7°F with about 27.4 inches of precipitation per year. The warmest month is July (average high 95.2°F), and the coldest is January (average low 36.2°F). February is typically the wettest month (5.14 in) and July the driest (0.03 in).

Annual swing
32°F
warmest to coldest month
Heating need
2,493
Cooling need
1,287

Best time to visit Chico

Full guide →

Climate change signal

All-time records →

30 of 366 (8.2%) of Chico's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1900s
20
1910s
76
1920s
35
1930s
45
1940s
20
1950s
21
1960s
24
1970s
17
1980s
17
1990s
22
2000s
33
2010s
20
2020s
16

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 56.1°F 36.2°F 46.1°F 5.12 in
February 62.2°F 38.3°F 50.3°F 5.14 in
March 66.7°F 41.6°F 54.2°F 3.63 in
April 72.8°F 45.3°F 59.0°F 1.95 in
May 81.3°F 52.2°F 66.8°F 1.35 in
June 89.3°F 57.4°F 73.4°F 0.64 in
July 95.2°F 61.0°F 78.1°F 0.03 in
August 94.3°F 59.0°F 76.7°F 0.10 in
September 90.9°F 54.9°F 72.9°F 0.25 in
October 79.7°F 47.4°F 63.5°F 1.73 in
November 65.0°F 39.8°F 52.4°F 2.41 in
December 56.6°F 36.3°F 46.4°F 5.04 in

Climate twins of Chico

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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