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Niobrara County Climate

Niobrara County, Wyoming

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec46.5°AVG °F

Avg Annual Temp

46.5°F

Annual Precip

15.6"

Annual Snowfall

48.9"

Extreme Heat Days

38

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
0.3"
0.5"
0.9"
2.1"
3.0"
2.3"
1.8"
1.3"
1.4"
1.3"
0.5"
0.3"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

5a

Minimum winter temperature range for plant survival

Growing Degree Days

2,417

Favors cool-season crops

Last spring frost (32°F): 05/17
First fall frost (32°F): 09/25

Seasonal Overview

Comfort ZoneSpring36°54°6.0"Summer64°72°5.4"Fall34°61°3.1"Winter25°27°1.1"20°40°60°80°100°

National Comparison

Warmer than 18% of US counties
Wetter than 8% of US counties
More seasonal variation than 71% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Niobrara County

Climate Verdict

Niobrara County has a cool, averaging 46.5°F annually, semi-arid conditions with only 15.6 inches of annual precipitation, occasional hot days — 38.425 per year above 90°F, moderate snowfall of 48.9 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are very cold — January averages 24.7°F. summers are warm — July averages 72.2°F. The 48°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.

Regional Context

Niobrara County closely matches the Wyoming statewide average temperature of 43.8°F, the county experiences 15.06510431597388 more extreme heat days than the state average.

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

What is the average temperature in Niobrara County?
The average annual temperature in Niobrara County, WY is 46.5°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Niobrara County get?
Niobrara County receives an average of 15.6 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Niobrara County?
Yes, Niobrara County receives an average of 48.9 inches of snowfall per year according to NOAA climate normals.
How hot does Niobrara County get in summer?
The average summer temperature (June-August) in Niobrara County is 69.0°F. The county experiences an average of 38 days per year above 90°F.
How cold are winters in Niobrara County?
The average winter temperature (December-February) in Niobrara County is 25.6°F. January, typically the coldest month, averages 24.7°F.

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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.

Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor
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