Ritzville, WA Climate

Climate Insight: Ritzville, WA

Ritzville, Washington runs an annual average of 49°F, ranging from a mean daily high of 60°F to a mean daily low of 37°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while December is the coldest. Drawn from station USC00457059, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Ritzville averages 12.8 inches of precipitation a year, with 15.7 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 156 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 7 and the first fall freeze near October 10. As for energy demand, 6,408 heating degree days and 474 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Ritzville scores 54/100 (Moderate), 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.