Montague Siskiyou CO, CA Climate

Climate Insight: Montague Siskiyou CO, CA

An annual average temperature of 53°F, ranging from a mean daily high of 68°F to a mean daily low of 38°F is what the NOAA 1991–2020 climate normals report for Montague Siskiyou CO, California. July is typically the warmest month of the year, while December is the coldest. That baseline comes from station USW00024259 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Montague Siskiyou CO sees about 12.0 inches of precipitation a year, predominantly as rainfall. The frost-free season averages 149 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 12 and the first fall freeze near October 8. On the energy side, 5,126 heating degree days and 705 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Montague Siskiyou CO 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.