Platte County Climate
Platte County, Wyoming
Avg Annual Temp
47.2°F
Annual Precip
14.8"
Annual Snowfall
51.2"
Extreme Heat Days
36.233333333333334
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Platte County Weather
A Warmer Pocket of the West
Platte County averages 47.2°F annually, which is cool compared to the national median but warm for its latitude. It receives 14.8 inches of precipitation, making it a typical semi-arid High Plains environment.
Wyoming's Warmest County in Sample
At 47.2°F, Platte County is 3.4 degrees warmer than the state average of 43.8°F. It stands out as one of the most temperate regions in a state known for its harsh cold.
Warmer than the Southern Border
Platte County is slightly warmer than Laramie County to the south (46.7°F) and Niobrara County to the north (46.5°F). It enjoys a relatively low elevation that moderates its annual temperature.
Intense Summers and Brisk Winters
The county faces 36 days of extreme heat annually, with July averages reaching 71.3°F. Winter remains a factor with 51.2 inches of snow and January temperatures averaging 27.2°F.
Prepare for Both Extremes
Residents need versatile home systems to handle 36 days of 90-degree heat and 51 inches of winter snow. The 44-degree swing between summer and winter averages requires robust heating and cooling solutions.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.