weatherbycounty

Cook County Climate

JanFebMarAprMayJunJulAugSepOctNovDec66.6°AVG °F

Avg Annual Temp

66.6°F

Annual Precip

Annual Snowfall

Extreme Heat Days

76

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Growing Season & Gardening

USDA Hardiness Zone

9a

Minimum winter temperature range for plant survival

Seasonal Overview

Comfort ZoneSpring60°73°0.0"Summer80°81°0.0"Fall59°77°0.0"Winter50°54°0.0"20°40°60°80°100°

National Comparison

Warmer than 92% of US counties
More seasonal variation than 7% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Cook County

Climate Verdict

Cook County has a warm, averaging 66.6°F year-round, significant summer heat with 76.4 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 49.8°F. summers are hot, with July averaging 80.7°F. The 31°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

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

Regional Context

Cook County closely matches the Georgia statewide average temperature of 63.7°F.

Frequently Asked Questions

What is the average temperature in Cook County?
The average annual temperature in Cook County, GA is 66.6°F, based on NOAA 30-year climate normals (1991-2020).
How hot does Cook County get in summer?
The average summer temperature (June-August) in Cook County is 80.2°F. The county experiences an average of 76 days per year above 90°F.
How cold are winters in Cook County?
The average winter temperature (December-February) in Cook County is 51.9°F. January, typically the coldest month, averages 49.8°F.

Track your own weather in Cook 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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