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Tillman County Climate

Tillman County, Oklahoma

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec62.9°AVG °F

Avg Annual Temp

62.9°F

Annual Precip

Annual Snowfall

Extreme Heat Days

102

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Growing Season & Gardening

USDA Hardiness Zone

8a

Minimum winter temperature range for plant survival

Growing Degree Days

5,683

Excellent for heat-loving crops

Last spring frost (32°F): 04/03
First fall frost (32°F): 11/10

Seasonal Overview

Comfort ZoneSpring53°71°0.0"Summer81°85°0.0"Fall52°76°0.0"Winter41°45°0.0"20°40°60°80°100°

National Comparison

Warmer than 81% of US counties
More seasonal variation than 53% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Tillman County

Climate Verdict

Tillman County has a warm, averaging 62.9°F year-round, significant summer heat with 101.55 days annually above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are mild, with January temperatures averaging 41.0°F. summers are hot, with July averaging 84.7°F. The 44°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.

Regional Context

Tillman County closely matches the Oklahoma statewide average temperature of 60.4°F, the county experiences 25.139050925925886 more extreme heat days than the state average.

Climate Profile

About Tillman County Weather

Exceptional heat in the southwest corner

Tillman County is one of the warmest in the region, with an annual average temperature of 62.9°F. This is nearly ten degrees above the national median, signaling a very hot local climate.

Ranking among Oklahoma's hottest counties

At 62.9°F, the county is significantly warmer than the Oklahoma state average of 60.4°F. July brings extreme conditions with temperatures averaging 84.7°F.

Surpassing neighbors in extreme heat days

Tillman County records a staggering 102 days over 90°F annually, far exceeding the 76 days seen in nearby Stephens County. While rainfall data is limited, the heat profile is clearly the most intense in the set.

Over one hundred days of extreme heat

The county endures 102 days per year with temperatures at or above 90°F. Winter is mild by comparison, averaging 42.7°F, with virtually no significant snow recorded.

Prioritize high-capacity air conditioning

With over 100 days of extreme heat, HVAC systems must be regularly serviced and highly efficient. Residents should avoid outdoor exertion during the peak of the 84.7°F July afternoons.

Frequently Asked Questions

What is the average temperature in Tillman County?
The average annual temperature in Tillman County, OK is 62.9°F, based on NOAA 30-year climate normals (1991-2020).
How hot does Tillman County get in summer?
The average summer temperature (June-August) in Tillman County is 83.0°F. The county experiences an average of 102 days per year above 90°F.
How cold are winters in Tillman County?
The average winter temperature (December-February) in Tillman County is 42.7°F. January, typically the coldest month, averages 41.0°F.

Track your own weather in Tillman 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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