Niobrara County Climate
Niobrara County, Wyoming
Avg Annual Temp
46.5°F
Annual Precip
15.6"
Annual Snowfall
48.9"
Extreme Heat Days
38.425
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Niobrara County Weather
A High Plains Climate Profile
Niobrara County’s annual average temperature of 46.5°F is cool by national standards but typical for the High Plains. It is relatively dry, with 15.6 inches of annual precipitation compared to the much higher national average.
Surpassing the State Average
The county is roughly 2.7 degrees warmer than the Wyoming state average of 43.8°F. It benefits from a lower elevation that helps keep its annual temperature profile in the state's upper quartile.
Wetter and Warmer Neighbors
Niobrara is slightly cooler than Platte County to the southwest (47.2°F). However, its 15.6 inches of precipitation makes it wetter than many interior Wyoming counties like Natrona.
The State's Summer Hotspot
Niobrara County experiences 38 days of extreme heat over 90°F, the highest among these eight counties. Winters still bring 48.9 inches of snow, though January remains slightly warmer than the state average at 24.7°F.
Cooling is a Priority
Because of the 38 extreme heat days, reliable air conditioning is more critical here than in most of Wyoming. Residents should also prepare for moderate snowfall that can total nearly 50 inches annually.
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.