Tehama County Climate
Tehama County, California
Avg Annual Temp
54.8°F
Annual Precip
32.8"
Annual Snowfall
0.1"
Extreme Heat Days
55.95
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Tehama County Weather
Near the national temperature median
Tehama County’s 54.8°F average annual temperature closely aligns with the national median. This makes it one of the few California counties that mirrors the typical American temperature experience. It balances northern cool with valley warmth.
Cooler than the state average
At 54.8°F, Tehama is notably cooler than the California state average of 58.7°F. The county’s northern latitude and terrain contribute to this lower average. It offers a reprieve from the higher temperatures found further south.
Abundant rain for the region
The county receives 32.8 inches of annual rain, significantly higher than the state average of 25.8 inches. It is much wetter than Stanislaus County to the south. This higher rainfall supports the diverse natural landscapes of the northern valley.
Hot summers and crisp winters
The county sees 56 extreme heat days annually, with July temperatures averaging a warm 72.7°F. Winters are chilly for California, averaging 41.0°F with trace amounts of snowfall. This variation creates distinct, manageable seasonal shifts.
Prepare for variable weather
Homeowners should ensure insulation is adequate for the 41.0°F winter average. Cooling systems need to be reliable to combat nearly two months of extreme heat. Rain-ready gear is a must to enjoy the 32.8 inches of annual precipitation.
Frequently Asked Questions
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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.