Buffalo Bill Dam, WY Climate

Climate Insight: Buffalo Bill Dam, WY

In Buffalo Bill Dam, Wyoming, the NOAA 1991–2020 climate normals put the annual average temperature at 46°F, ranging from a mean daily high of 57°F to a mean daily low of 35°F. July is typically the warmest month of the year, while December is the coldest. As thirty-year averages computed from station USC00481175, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Buffalo Bill Dam sees about 12.7 inches of precipitation a year, with 12.3 inches typically falling as snow. The frost-free season averages 139 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 17 and the first fall freeze near October 3. On the energy side, 7,297 heating degree days and 390 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Buffalo Bill Dam scores 54/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings July-driven heat, and winter brings December-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.