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Stockton, 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 Stockton, CA?
Stockton, CA gets 13.4 in of precipitation a year over about 56 rainy days. July is the warmest month (average high 94°F) and December the coldest (average low 38°F).
Mediterranean climate
Stockton, CA has hot summers and mild winters. Daytime highs range from about 56°F in December to 94°F in July. January is usually the wettest month. The most comfortable time to visit is typically March to April and October to November, when daytime highs sit near 72°F.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 39° | 58° |
| Spring | Mar–May | 48° | 74° |
| Summer | Jun–Aug | 59° | 92° |
| Autumn | Sep–Nov | 50° | 78° |
How much rain does Stockton get?
Stockton gets 13.4 in of precipitation in an average year, spread over about 56 days with measurable rain. That is fewer rainy days than 78% of the US.
January is the wettest month, with 2.7 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 150 days, to September 24, 2025.
From September 2025 to August 2026 Stockton got 17.9 in of rain, against a normal of 13.4 in for those months. February 2026 had the most, with 3.9 in.
See where Stockton ranks: rainiest cities in the US, US cities with the most rainy days, rainiest cities in California.
Stockton weather by month
Stockton weather in January
In January, Stockton averages a high of 56°F and a low of 39°F. It gets 2.7 in of precipitation over about 10 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The January record high is 78°F (2021) and the record low is 20°F (2007).
Stockton weather in February
In February, Stockton averages a high of 62°F and a low of 41°F. It gets 2.5 in of precipitation over about 9 rainy days. Estimated sunshine is 59% of daylight hours, derived from ERA5 cloud cover. The February record high is 79°F (2020) and the record low is 22°F (1989).
Stockton weather in March
In March, Stockton averages a high of 67°F and a low of 44°F. It gets 1.9 in of precipitation over about 9 rainy days. Estimated sunshine is 51% of daylight hours, derived from ERA5 cloud cover. The March record high is 90°F (2026) and the record low is 27°F (1971). March is one of the most comfortable months to visit.
Stockton weather in April
In April, Stockton averages a high of 73°F and a low of 47°F. It gets 1.1 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 100°F (1981) and the record low is 32°F (2001). April is one of the most comfortable months to visit.
Stockton weather in May
In May, Stockton averages a high of 82°F and a low of 52°F. It gets 0.6 in of precipitation over about 3 rainy days. Estimated sunshine is 75% of daylight hours, derived from ERA5 cloud cover. The May record high is 107°F (1984) and the record low is 36°F (2010).
Stockton weather in June
In June, Stockton averages a high of 89°F and a low of 57°F. It gets 0.1 in of precipitation over about 1 rainy days. Estimated sunshine is 79% of daylight hours, derived from ERA5 cloud cover. The June record high is 110°F (1973) and the record low is 45°F (1971).
Stockton weather in July
In July, Stockton averages a high of 94°F and a low of 60°F. It gets 0.0 in of precipitation over about 0 rainy days. Estimated sunshine is 89% of daylight hours, derived from ERA5 cloud cover. The July record high is 115°F (2006) and the record low is 49°F (1999).
Stockton weather in August
In August, Stockton averages a high of 93°F and a low of 60°F. It gets 0.0 in of precipitation over about 0 rainy days. Estimated sunshine is 86% of daylight hours, derived from ERA5 cloud cover. The August record high is 113°F (2020) and the record low is 50°F (1999).
Stockton weather in September
In September, Stockton averages a high of 89°F and a low of 57°F. It gets 0.1 in of precipitation over about 1 rainy days. Estimated sunshine is 85% of daylight hours, derived from ERA5 cloud cover. The September record high is 115°F (2022) and the record low is 43°F (1982).
Stockton weather in October
In October, Stockton averages a high of 80°F and a low of 50°F. It gets 0.7 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 105°F (2024) and the record low is 33°F (1972). October is one of the most comfortable months to visit.
Stockton weather in November
In November, Stockton averages a high of 66°F and a low of 42°F. It gets 1.4 in of precipitation over about 6 rainy days. Estimated sunshine is 58% of daylight hours, derived from ERA5 cloud cover. The November record high is 84°F (1997) and the record low is 25°F (1985). November is one of the most comfortable months to visit.
Stockton weather in December
In December, Stockton averages a high of 56°F and a low of 38°F. It gets 2.4 in of precipitation over about 9 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The December record high is 76°F (2020) and the record low is 17°F (1990).
Sunshine, humidity and wind in Stockton
July is the sunniest month in Stockton, with estimated sunshine of 89% of daylight hours from ERA5 cloud cover. December is the cloudiest, at 37%. The annual cloud-cover estimate is 66% of daylight hours; it is not a measurement of sunshine duration. Stockton is sunnier than 94% of the US.
Humidity peaks in December at 77% and is lowest in June at 43%.
Wind averages 8 mph over the year, and June is the windiest month at 10 mph.
Stockton has about 87 days a year above 90°F. Stockton is hotter than 88% of the US.
Thunderstorms occur on about 4 days a year.
See where Stockton ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.
First and last freeze in Stockton
The first fall freeze in Stockton typically comes around November 28, and the last spring freeze around February 17. That leaves a frost-free growing season of about 284 days.
Stockton weather records
These records cover STOCKTON AP during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Stockton station is 115°F, on July 23, 2006. The coldest is 17°F, on December 22, 1990.
The wettest day in the available station history brought 2.9 in of precipitation, on December 31, 2022.
35 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.3°F per decade since 1970.
The best time to visit Stockton
The most comfortable time to visit is typically March to April and October to November, when daytime highs sit near 72°F.
Winter (December–February) is mild, with average highs around 58°F and lows near 39°F.
Spring (March–May) is warm, with average highs around 74°F and lows near 48°F.
Summer (June–August) is hot, with average highs around 92°F and lows near 59°F.
Autumn (September–November) is warm, with average highs around 78°F and lows near 50°F.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Wind | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|---|
| January | 39° | 56° | 2.7 in | 10 | 6 mph | 75% | 38% | 78° | 20° |
| February | 41° | 62° | 2.5 in | 9 | 7 mph | 62% | 59% | 79° | 22° |
| March | 44° | 67° | 1.9 in | 9 | 8 mph | 60% | 51% | 90° | 27° |
| April | 47° | 73° | 1.1 in | 5 | 9 mph | 52% | 65% | 100° | 32° |
| May | 52° | 82° | 0.57 in | 3 | 10 mph | 45% | 75% | 107° | 36° |
| June | 57° | 89° | 0.10 in | 1 | 10 mph | 43% | 79% | 110° | 45° |
| July | 60° | 94° | 0.00 in | 0 | 9 mph | 47% | 89% | 115° | 49° |
| August | 60° | 93° | 0.01 in | 0 | 8 mph | 49% | 86% | 113° | 50° |
| September | 57° | 89° | 0.08 in | 1 | 7 mph | 52% | 85% | 115° | 43° |
| October | 50° | 80° | 0.69 in | 3 | 6 mph | 51% | 75% | 105° | 33° |
| November | 42° | 66° | 1.4 in | 6 | 6 mph | 63% | 58% | 84° | 25° |
| December | 38° | 56° | 2.4 in | 9 | 7 mph | 77% | 37% | 76° | 17° |
Station: STOCKTON AP, 9 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.
Stockton climate questions
How much rain does Stockton get?
Stockton gets 13.4 in of precipitation in an average year, over about 56 rainy days.
What is the wettest month in Stockton?
January is the wettest month in Stockton, with 2.7 in. July is the driest, with 0.0 in.
How many rainy days does Stockton have a year?
Stockton has about 56 days with measurable rain in an average year. January has the most, about 10.
What is the hottest month in Stockton?
July is the warmest month in Stockton, with an average high of 94°F.
What is the coldest month in Stockton?
December is the coldest month in Stockton, with an average low of 38°F.
What is the record high temperature in Stockton?
Within the available 1970–2026 station history, the record high at the Stockton station is 115°F, set on July 23, 2006. The record low is 17°F, on December 22, 1990.
What is the sunniest month in Stockton?
July is the sunniest month in Stockton, with estimated sunshine of 89% of daylight hours from ERA5 cloud cover. December is the cloudiest.
When is the first frost in Stockton?
The first fall freeze in Stockton typically comes around November 28. The last spring freeze is around February 17.
What is the best time to visit Stockton?
The most comfortable time to visit is typically March to April and October to November, when daytime highs sit near 72°F.