weatherbycounty

Carbon County Climate

JanFebMarAprMayJunJulAugSepOctNovDec43.2°AVG °F

Avg Annual Temp

43.2°F

Annual Precip

11.1"

Annual Snowfall

56.3"

Extreme Heat Days

14

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
0.5"
0.7"
0.8"
1.3"
1.7"
1.1"
0.9"
0.8"
1.0"
1.0"
0.6"
0.6"
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

1,705

Favors cool-season crops

Last spring frost (32°F): 06/01
First fall frost (32°F): 09/18

Seasonal Overview

Comfort ZoneSpring33°50°3.9"Summer60°68°2.8"Fall32°56°2.6"Winter22°24°1.8"20°40°60°80°100°

National Comparison

Warmer than 8% of US counties
Wetter than 3% of US counties
More seasonal variation than 64% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Carbon County

Climate Verdict

Carbon County has a cool, averaging 43.2°F annually, arid conditions receiving just 11.1 inches of precipitation annually, rare extreme heat with only 13.5125 days above 90°F annually, moderate snowfall of 56.3 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are very cold — January averages 21.8°F. summers are pleasantly cool with July averaging 67.5°F. The 46°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

Carbon County closely matches the Wyoming statewide average temperature of 43.8°F, it is somewhat drier than average for Wyoming.

Climate Profile

About Carbon County Weather

A Cold and Dry Mountain Profile

Carbon County sits well below the national median temperature at 43.2°F. With only 11.1 inches of annual precipitation, it is significantly drier than the average U.S. county.

Typical of the High Wyoming Plains

The county's annual temperature of 43.2°F is nearly identical to the statewide average of 43.8°F. Its 11.1 inches of precipitation is slightly below the state average of 13.9 inches.

Warmer and Drier than Albany County

Carbon County is slightly warmer than neighboring Albany, but it receives 1.9 inches less total precipitation. It also sees about 11 fewer inches of snow annually than its eastern neighbor.

Cold Winters with Significant Snowfall

Winters are long and snowy, averaging 56.3 inches of snow and a January low of 21.8°F. Extreme heat is rare, with only 14 days per year topping 90°F.

Focus on Snow Removal and Insulation

With 56.3 inches of snow and few heat waves, residents should invest in quality snow removal equipment and attic insulation. Air conditioning is less critical here than in warmer northern Wyoming counties.

Frequently Asked Questions

What is the average temperature in Carbon County?
The average annual temperature in Carbon County, WY is 43.2°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Carbon County get?
Carbon County receives an average of 11.1 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 Carbon County?
Yes, Carbon County receives an average of 56.3 inches of snowfall per year according to NOAA climate normals.
How hot does Carbon County get in summer?
The average summer temperature (June-August) in Carbon County is 64.2°F. The county experiences an average of 14 days per year above 90°F.
How cold are winters in Carbon County?
The average winter temperature (December-February) in Carbon County is 22.7°F. January, typically the coldest month, averages 21.8°F.

Track your own weather in Carbon County

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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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