Black Mtn, WY Climate

Climate Insight: Black Mtn, WY

Based on station USC00480778 feeding NOAA's 1991–2020 climate normals, Black Mtn, Wyoming averages 47°F a year, ranging from a mean daily high of 57°F to a mean daily low of 37°F. July is typically the warmest month of the year, while December is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Black Mtn receives roughly 15.4 inches of precipitation each year, with 72.6 inches typically falling as snow. The frost-free season averages 142 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 14 and the first fall freeze near October 3. For energy use, 7,276 heating degree days and 663 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Black Mtn 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 December-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.