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Chico, CA Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Chico, CA?
Chico, CA gets 27.4 in of precipitation a year over about 52 rainy days. July is the warmest month (average high 95°F) and December the coldest (average low 35°F).
Mediterranean climate
Chico, CA has hot summers and mild winters. Daytime highs range from about 57°F in January to 95°F in July. February is usually the wettest month, and snow falls in winter. The most comfortable time to visit is typically March to April and November, when daytime highs sit near 69°F.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 37° | 58° |
| Spring | Mar–May | 46° | 74° |
| Summer | Jun–Aug | 59° | 93° |
| Autumn | Sep–Nov | 47° | 79° |
How much rain does Chico get?
Chico gets 27.4 in of precipitation in an average year, spread over about 52 days with measurable rain. That is fewer rainy days than 81% of the US.
February is the wettest month, with 5.1 in. July is the driest, with 0.0 in. January has the most rainy days, about 10.
The longest dry spell in the last five years lasted 34 days, to October 31, 2022.
From September 2025 to August 2026 Chico got 26.3 in of rain, against a normal of 27.4 in for those months. February 2026 had the most, with 6.1 in.
See where Chico ranks: rainiest cities in the US, US cities with the most rainy days, rainiest cities in California.
Does it snow in Chico?
The snowiest winter on record is 1972–73, with 15.5 in.
The most recent measurable snow at the station fell on January 28, 2002.
See where Chico ranks: snowiest cities in the US.
Chico weather by month
Chico weather in January
In January, Chico averages a high of 57°F and a low of 36°F. It gets 5.1 in of precipitation over about 10 rainy days. Estimated sunshine is 39% of daylight hours, derived from ERA5 cloud cover. The January record high is 79°F (2021) and the record low is 18°F (1987).
Chico weather in February
In February, Chico averages a high of 62°F and a low of 38°F. It gets 5.1 in of precipitation over about 8 rainy days. Estimated sunshine is 56% of daylight hours, derived from ERA5 cloud cover. The February record high is 83°F (2022) and the record low is 16°F (1989).
Chico weather in March
In March, Chico averages a high of 67°F and a low of 42°F. It gets 3.6 in of precipitation over about 8 rainy days. Estimated sunshine is 50% of daylight hours, derived from ERA5 cloud cover. The March record high is 91°F (2026) and the record low is 23°F (1971). March is one of the most comfortable months to visit.
Chico weather in April
In April, Chico averages a high of 73°F and a low of 45°F. It gets 1.9 in of precipitation over about 5 rainy days. Estimated sunshine is 65% of daylight hours, derived from ERA5 cloud cover. The April record high is 98°F (2009) and the record low is 29°F (1999). April is one of the most comfortable months to visit.
Chico weather in May
In May, Chico averages a high of 81°F and a low of 52°F. It gets 1.4 in of precipitation over about 4 rainy days. Estimated sunshine is 71% of daylight hours, derived from ERA5 cloud cover. The May record high is 104°F (1984) and the record low is 33°F (2010).
Chico weather in June
In June, Chico averages a high of 89°F and a low of 57°F. It gets 0.6 in of precipitation over about 2 rainy days. Estimated sunshine is 74% of daylight hours, derived from ERA5 cloud cover. The June record high is 110°F (2017) and the record low is 28°F (1985).
Chico weather in July
In July, Chico averages a high of 95°F and a low of 61°F. It gets 0.0 in of precipitation over about 0 rainy days. Estimated sunshine is 92% of daylight hours, derived from ERA5 cloud cover. The July record high is 117°F (1972) and the record low is 40°F (1981).
Chico weather in August
In August, Chico averages a high of 95°F and a low of 59°F. It gets 0.1 in of precipitation over about 0 rainy days. Estimated sunshine is 87% of daylight hours, derived from ERA5 cloud cover. The August record high is 114°F (1971) and the record low is 38°F (1978).
Chico weather in September
In September, Chico averages a high of 91°F and a low of 55°F. It gets 0.3 in of precipitation over about 1 rainy days. Estimated sunshine is 84% of daylight hours, derived from ERA5 cloud cover. The September record high is 115°F (2022) and the record low is 35°F (1986).
Chico weather in October
In October, Chico averages a high of 81°F and a low of 46°F. It gets 1.7 in of precipitation over about 3 rainy days. Estimated sunshine is 75% of daylight hours, derived from ERA5 cloud cover. The October record high is 107°F (2001) and the record low is 23°F (1971).
Chico weather in November
In November, Chico averages a high of 66°F and a low of 40°F. It gets 2.4 in of precipitation over about 5 rainy days. Estimated sunshine is 58% of daylight hours, derived from ERA5 cloud cover. The November record high is 86°F (2015) and the record low is 21°F (1985). November is one of the most comfortable months to visit.
Chico weather in December
In December, Chico averages a high of 57°F and a low of 35°F. It gets 5.0 in of precipitation over about 7 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The December record high is 78°F (2008) and the record low is 13°F (1972).
Sunshine, humidity and wind in Chico
July is the sunniest month in Chico, with estimated sunshine of 92% of daylight hours from ERA5 cloud cover. January is the cloudiest, at 39%. The annual cloud-cover estimate is 66% of daylight hours; it is not a measurement of sunshine duration. Chico is sunnier than 93% of the US.
Humidity peaks in December at 69% and is lowest in July at 25%.
Chico has about 67 days a year above 90°F. Chico is hotter than 78% of the US.
See where Chico ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.
First and last freeze in Chico
The first fall freeze in Chico typically comes around November 16, and the last spring freeze around March 19. That leaves a frost-free growing season of about 242 days.
Chico weather records
These records cover CHICO UNIV FARM during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Chico station is 117°F, on July 15, 1972. The coldest is 13°F, on December 9, 1972.
The wettest day in the available station history brought 5.3 in of precipitation, on December 31, 2022.
34 all-time records have been set at the station since 1970.
The best time to visit Chico
The most comfortable time to visit is typically March to April and November, when daytime highs sit near 69°F.
Winter (December–February) is mild, with average highs around 58°F and lows near 37°F. Snow is possible.
Spring (March–May) is warm, with average highs around 74°F and lows near 46°F.
Summer (June–August) is hot, with average highs around 93°F and lows near 59°F.
Autumn (September–November) is warm, with average highs around 79°F and lows near 47°F.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 36° | 57° | 5.1 in | 10 | 66% | 39% | 79° | 18° |
| February | 38° | 62° | 5.1 in | 8 | 50% | 56% | 83° | 16° |
| March | 42° | 67° | 3.6 in | 8 | 54% | 50% | 91° | 23° |
| April | 45° | 73° | 1.9 in | 5 | 43% | 65% | 98° | 29° |
| May | 52° | 81° | 1.4 in | 4 | 35% | 71% | 104° | 33° |
| June | 57° | 89° | 0.64 in | 2 | 29% | 74% | 110° | 28° |
| July | 61° | 95° | 0.03 in | 0 | 25% | 92% | 117° | 40° |
| August | 59° | 95° | 0.10 in | 0 | 28% | 87% | 114° | 38° |
| September | 55° | 91° | 0.25 in | 1 | 31% | 84% | 115° | 35° |
| October | 46° | 81° | 1.7 in | 3 | 34% | 75% | 107° | 23° |
| November | 40° | 66° | 2.4 in | 5 | 54% | 58% | 86° | 21° |
| December | 35° | 57° | 5.0 in | 7 | 69% | 40% | 78° | 13° |
Station: CHICO UNIV FARM, 4 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Chico climate questions
How much rain does Chico get?
Chico gets 27.4 in of precipitation in an average year, over about 52 rainy days.
What is the wettest month in Chico?
February is the wettest month in Chico, with 5.1 in. July is the driest, with 0.0 in.
How many rainy days does Chico have a year?
Chico has about 52 days with measurable rain in an average year. January has the most, about 10.
What is the hottest month in Chico?
July is the warmest month in Chico, with an average high of 95°F.
What is the coldest month in Chico?
December is the coldest month in Chico, with an average low of 35°F.
What is the record high temperature in Chico?
Within the available 1970–2026 station history, the record high at the Chico station is 117°F, set on July 15, 1972. The record low is 13°F, on December 9, 1972.
What is the sunniest month in Chico?
July is the sunniest month in Chico, with estimated sunshine of 92% of daylight hours from ERA5 cloud cover. January is the cloudiest.
When is the first frost in Chico?
The first fall freeze in Chico typically comes around November 16. The last spring freeze is around March 19.
What is the best time to visit Chico?
The most comfortable time to visit is typically March to April and November, when daytime highs sit near 69°F.