Billy Creek, WY Climate

Climate Insight: Billy Creek, WY

The NOAA 1991–2020 climate normals describe Billy Creek, Wyoming as a location with an annual average temperature of 46°F, ranging from a mean daily high of 59°F to a mean daily low of 32°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00480740, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Billy Creek receives roughly 13.4 inches of precipitation each year, with 35.7 inches typically falling as snow. Growing-season length varies with elevation and microclimate, with the last spring freeze near May 19 and the first fall freeze near September 21. For energy use, 7,516 heating degree days and 452 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Billy Creek scores 52/100 (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.