Stanislaus County Climate
Stanislaus County, California
Avg Annual Temp
63.5°F
Annual Precip
12.3"
Annual Snowfall
0.0"
Extreme Heat Days
85.19999999999999
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Stanislaus County Weather
Significantly warmer than the U.S.
Stanislaus County’s 63.5°F average annual temperature is much higher than the national median. Its semi-arid climate delivers consistent heat that defines the Central Valley experience. This makes it one of the warmer agricultural hubs in the United States.
Warmer than the state average
The county’s 63.5°F average temperature exceeds the California state average of 58.7°F. It experiences more intense heat than the coastal regions to its west. This temperature profile places it among the state's hotter interior counties.
Drier than coastal counterparts
With only 12.3 inches of annual rain, Stanislaus is much drier than the state average of 25.8 inches. Nearby Sonoma receives triple this amount of moisture. The dry conditions necessitate heavy reliance on irrigation for local farming.
Intense summer heat peaks
The county endures 85 days per year over 90°F, concentrated during the 77.3°F summer average. Winters are cool but mild at 49.5°F, and snowfall is non-existent. The stark 31-degree swing between January and July highlights the seasonal range.
Plan for extreme summer cooling
A robust HVAC system is essential to handle the nearly three months of extreme heat. Residents should also prioritize drought-tolerant landscaping due to the low 12.3 inches of annual rain. Lightweight, breathable clothing is the standard for the long, hot summer season.
Frequently Asked Questions
What is the average temperature in Stanislaus County?
How much rain does Stanislaus County get?
Does it snow in Stanislaus County?
How hot does Stanislaus County get in summer?
How cold are winters in Stanislaus County?
Track your own weather in Stanislaus County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.