Gross Rsvr, CO Climate

Climate Insight: Gross Rsvr, CO

Gross Rsvr, Colorado runs an annual average of 44°F, ranging from a mean daily high of 57°F to a mean daily low of 31°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while January is the coldest. Drawn from station USC00053629, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Gross Rsvr averages 20.3 inches of precipitation a year, with 99.1 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 122 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 24 and the first fall freeze near September 23. As for energy demand, 7,765 heating degree days and 90 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Gross Rsvr scores 44/100 (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 January-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.