Hecla, WY Climate

Climate Insight: Hecla, WY

Hecla, Wyoming runs an annual average of 45°F, ranging from a mean daily high of 58°F to a mean daily low of 32°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while December is the coldest. Drawn from station USC00484442, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Hecla receives roughly 14.5 inches of precipitation each year, with 69.5 inches typically falling as snow. The frost-free season averages 115 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 27 and the first fall freeze near September 19. For energy use, 7,465 heating degree days and 206 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Hecla 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.