Willits, CA Climate

Climate Insight: Willits, CA

In Willits, California, the NOAA 1991–2020 climate normals put the annual average temperature at 53°F, ranging from a mean daily high of 67°F to a mean daily low of 39°F. July is typically the warmest month of the year, while December is the coldest. As thirty-year averages computed from station USC00049684, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Willits receives roughly 49.2 inches of precipitation each year, predominantly as rainfall. The frost-free season averages 157 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 5 and the first fall freeze near October 9. For energy use, 4,527 heating degree days and 195 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Willits scores 64/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and December-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.