Vallecito Dam, CO Climate

Climate Insight: Vallecito Dam, CO

An annual average temperature of 44°F, ranging from a mean daily high of 59°F to a mean daily low of 29°F is what the NOAA 1991–2020 climate normals report for Vallecito Dam, Colorado. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00058582 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Vallecito Dam averages 25.8 inches of precipitation a year, with 84.9 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 118 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 31 and the first fall freeze near September 26. As for energy demand, 7,817 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, Vallecito Dam scores 44/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows, shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.