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Traill County Climate

Traill County, North Dakota

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec41.0°AVG °F

Avg Annual Temp

41.0°F

Annual Precip

23.1"

Annual Snowfall

Extreme Heat Days

8

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet
0.5"
0.6"
1.1"
1.4"
3.0"
3.9"
3.7"
2.6"
2.4"
2.2"
0.8"
0.9"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

4a

Minimum winter temperature range for plant survival

Growing Degree Days

2,237

Favors cool-season crops

Last spring frost (32°F): 05/13
First fall frost (32°F): 10/09

Seasonal Overview

Comfort ZoneSpring25°55°5.6"Summer66°70°10.2"Fall29°59°5.4"Winter8°15°2.0"20°40°60°80°100°

National Comparison

Warmer than 4% of US counties
Wetter than 18% of US counties
More seasonal variation than 99% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Traill County

Climate Verdict

Traill County has a cool, averaging 41.0°F annually, semi-arid conditions with only 23.1 inches of annual precipitation, rare extreme heat with only 8.25 days above 90°F annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are severe, with January averaging a frigid 7.8°F. summers are pleasantly cool with July averaging 69.8°F. Residents experience a substantial 62°F difference between winter and summer.

Outdoor & Gardening Guidance

Growing season and gardening data is currently limited for Traill County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.

Regional Context

Traill County closely matches the North Dakota statewide average temperature of 40.9°F, it is somewhat wetter than average for North Dakota.

Climate Profile

About Traill County Weather

A Damp and Cool Continental Climate

Traill County features an annual average temperature of 41.0°F, which is notably lower than the national median. It is the wettest county in this group, receiving 23.1 inches of precipitation annually. This combination of cold and moisture defines the local Red River Valley landscape.

The North Dakota Temperature Standard

Traill County’s average temperature of 41.0°F exactly matches the state average for North Dakota. It represents the quintessential North Dakota climate experience in terms of temperature. However, its higher precipitation sets it apart from the drier western half of the state.

Wetter than the Western Plains

At 23.1 inches of precipitation, Traill is significantly wetter than neighbors like Steele or Sheridan. Its temperature profile is milder than Steele’s but cooler than Walsh’s. The county's geography makes it more susceptible to humidity and heavy rain.

Mild Heat and Winter Extremes

The county experiences only 8 days of extreme heat above 90°F, keeping the July average at 69.8°F. Winter averages 11.5°F, though specific snowfall data is currently unavailable for this location. Residents still face a significant chill with January temperatures averaging 7.8°F.

Managing Moisture and Mud

With the highest precipitation in the region at 23.1 inches, drainage and moisture control are vital for property owners. High-quality winter clothing is essential to withstand the 11.5°F winter average. Cooling needs remain low with fewer than 10 days of extreme heat annually.

Frequently Asked Questions

What is the average temperature in Traill County?
The average annual temperature in Traill County, ND is 41.0°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Traill County get?
Traill County receives an average of 23.1 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
How hot does Traill County get in summer?
The average summer temperature (June-August) in Traill County is 67.9°F. The county experiences an average of 8 days per year above 90°F.
How cold are winters in Traill County?
The average winter temperature (December-February) in Traill County is 11.5°F. January, typically the coldest month, averages 7.8°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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