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Campbell County Climate

Campbell County, Wyoming

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec45.6°AVG °F

Avg Annual Temp

45.6°F

Annual Precip

15.0"

Annual Snowfall

48.1"

Extreme Heat Days

33

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
0.4"
0.6"
0.9"
1.8"
2.9"
2.3"
1.7"
1.1"
1.1"
1.4"
0.5"
0.5"
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

2,226

Favors cool-season crops

Last spring frost (32°F): 05/23
First fall frost (32°F): 09/23

Seasonal Overview

Comfort ZoneSpring36°52°5.5"Summer63°71°5.1"Fall33°59°3.0"Winter24°26°1.4"20°40°60°80°100°

National Comparison

Warmer than 15% of US counties
Wetter than 7% of US counties
More seasonal variation than 69% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Campbell County

Climate Verdict

Campbell County has a cool, averaging 45.6°F annually, semi-arid conditions with only 15.0 inches of annual precipitation, occasional hot days — 32.550000000000004 per year above 90°F, moderate snowfall of 48.1 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are very cold — January averages 24.1°F. summers are warm — July averages 71.0°F. The 47°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

Campbell County closely matches the Wyoming statewide average temperature of 43.8°F.

Climate Profile

About Campbell County Weather

Variable Weather in the Great Plains

Campbell County's 45.6°F average temperature is cooler than the national median of 54°F. It averages 15.0 inches of precipitation, placing it in a semi-arid national category.

Slightly Warmer than the State Average

Campbell County's average temperature of 45.6°F sits roughly 1.8 degrees above the Wyoming state average. Its 15.0 inches of precipitation is also slightly higher than the state median of 13.9 inches.

Drier and Warmer than Neighboring Crook

Compared to Crook County's 20.2 inches of rain, Campbell is significantly drier with only 15.0 inches. However, Campbell offers warmer summers, averaging 33 heat days compared to Crook's 22.

Extreme Heat and Moderate Snowfall

The county experiences a full month's worth of extreme heat, with 33 days over 90°F. Winters bring 48.1 inches of snow and a chilly January average of 24.1°F.

Dual-Season Preparedness is Critical

Home systems must handle both the 33 days of 90°F heat and nearly 50 inches of annual snow. Investing in all-weather vehicle tires and efficient HVAC systems is highly recommended for residents.

Frequently Asked Questions

What is the average temperature in Campbell County?
The average annual temperature in Campbell County, WY is 45.6°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Campbell County get?
Campbell County receives an average of 15.0 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 Campbell County?
Yes, Campbell County receives an average of 48.1 inches of snowfall per year according to NOAA climate normals.
How hot does Campbell County get in summer?
The average summer temperature (June-August) in Campbell County is 67.8°F. The county experiences an average of 33 days per year above 90°F.
How cold are winters in Campbell County?
The average winter temperature (December-February) in Campbell County is 24.7°F. January, typically the coldest month, averages 24.1°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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