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Roger Mills County Climate

Roger Mills County, Oklahoma

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec58.6°AVG °F

Avg Annual Temp

58.6°F

Annual Precip

27.6"

Annual Snowfall

7.1"

Extreme Heat Days

74

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
0.9"
0.8"
2.0"
2.6"
3.9"
3.5"
2.2"
2.9"
2.9"
2.6"
1.5"
1.5"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

7a

Minimum winter temperature range for plant survival

Growing Degree Days

4,685

Excellent for heat-loving crops

Last spring frost (32°F): 04/16
First fall frost (32°F): 10/23

Seasonal Overview

Comfort ZoneSpring49°67°8.5"Summer77°81°8.7"Fall47°71°7.1"Winter36°40°3.3"20°40°60°80°100°

National Comparison

Warmer than 66% of US counties
Wetter than 24% of US counties
More seasonal variation than 61% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Roger Mills County

Climate Verdict

Roger Mills County has a mild, with an average annual temperature of 58.6°F, moderate rainfall of 27.6 inches per year, significant summer heat with 74.3 days annually above 90°F, light snow averaging 7.1 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 36.3°F. summers are hot, with July averaging 81.4°F. The 45°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.

Regional Context

Roger Mills County closely matches the Oklahoma statewide average temperature of 60.4°F, it is also noticeably drier, receiving 9.6 inches less precipitation than the state average.

Climate Profile

About Roger Mills County Weather

Arid Plains with Wide Temperature Swings

Roger Mills County features a 58.6°F annual average, slightly cooler than the state average but warmer than the national median. It is characterized by its dry climate, receiving only 27.6 inches of rain annually.

Drier and Cooler than the State Average

The county is significantly drier than the Oklahoma average of 37.2 inches, falling nearly 10 inches short. Its 58.6°F average also makes it one of the cooler counties in the state overall.

Western Border Climate Extremes

Located on the Texas border, the county experiences more snowfall (7.1 inches) than most of central and eastern Oklahoma. The lack of humidity compared to eastern neighbors leads to more dramatic daily temperature changes.

Fierce Heat and Snowy Winters

Summers are brutal with 74 days of 90°F+ heat, while winters are the snowiest in this group at 7.1 inches. This creates a landscape of extremes, from a dry 81.4°F July to a 36.3°F January.

Ready for Drought and Snow

The low 27.6-inch rainfall requires drought-resistant landscaping and careful water management. Residents also need to prepare for winter storms, as the 7.1 inches of snow can create drifts in the open plains.

Frequently Asked Questions

What is the average temperature in Roger Mills County?
The average annual temperature in Roger Mills County, OK is 58.6°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Roger Mills County get?
Roger Mills County receives an average of 27.6 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 Roger Mills County?
Yes, Roger Mills County receives an average of 7.1 inches of snowfall per year according to NOAA climate normals.
How hot does Roger Mills County get in summer?
The average summer temperature (June-August) in Roger Mills County is 79.5°F. The county experiences an average of 74 days per year above 90°F.
How cold are winters in Roger Mills County?
The average winter temperature (December-February) in Roger Mills County is 37.9°F. January, typically the coldest month, averages 36.3°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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