Monticello, UT Climate

Climate Insight: Monticello, UT

An annual average temperature of 47°F, ranging from a mean daily high of 60°F to a mean daily low of 34°F is what the NOAA 1991–2020 climate normals report for Monticello, Utah. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00425805 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Monticello receives roughly 15.1 inches of precipitation each year, with 64.2 inches typically falling as snow. The frost-free season averages 136 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 19 and the first fall freeze near October 2. For energy use, 6,877 heating degree days and 315 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Monticello scores 44/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and January-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.