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Greene County Climate

JanFebMarAprMayJunJulAugSepOctNovDec53.7°AVG °F

Avg Annual Temp

53.7°F

Annual Precip

43.3"

Annual Snowfall

20.3"

Extreme Heat Days

9

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
3.4"
2.7"
3.7"
4.6"
4.8"
4.7"
4.0"
3.3"
2.7"
3.1"
3.1"
3.3"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

6b

Minimum winter temperature range for plant survival

Growing Degree Days

3,573

Supports most vegetables & fruits

Last spring frost (32°F): 04/18
First fall frost (32°F): 10/24

Seasonal Overview

Comfort ZoneSpring43°64°13.1"Summer71°74°11.9"Fall45°67°8.9"Winter30°35°9.3"20°40°60°80°100°

National Comparison

Warmer than 46% of US counties
Wetter than 54% of US counties
More seasonal variation than 54% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Greene County

Climate Verdict

Greene County has a mild, with an average annual temperature of 53.7°F, moderately wet with 43.3 inches of annual precipitation, rare extreme heat with only 8.6 days above 90°F annually, moderate snowfall of 20.3 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 30.2°F. summers are warm — July averages 74.1°F. The 44°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

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

Regional Context

Greene County closely matches the Ohio statewide average temperature of 51.5°F, it is somewhat wetter than average for Ohio.

Climate Profile

About Greene County Weather

Mirroring the National Temperature Median

Greene County’s 53.7°F average temperature aligns closely with the United States median. The county experiences a classic four-season humid continental climate common across the central plains.

Slightly Warmer than the Ohio Average

Greene County stays roughly two degrees warmer than the Ohio state average of 51.5°F. It represents the transition point between the cooler northern lake plains and the warmer southern river valleys.

Drier and Steadier than Southern Neighbors

With 43.3 inches of rain, Greene is drier than Hamilton and Gallia to the south. It sees 20.3 inches of snow, providing a moderate winter compared to the lake-effect regions.

Balanced Seasons with Moderate Peaks

July averages a warm 74.1°F, while January dips to 30.2°F. The county sees 9 extreme heat days per year, making summers warm but manageable.

Equip for Variable Midwestern Weather

Residents should plan for moderate snowfall of 20.3 inches with standard winter tires. Dual-purpose HVAC systems are ideal for the mix of 74°F summers and 30°F winters.

Frequently Asked Questions

What is the average temperature in Greene County?
The average annual temperature in Greene County, OH is 53.7°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Greene County get?
Greene County receives an average of 43.3 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 Greene County?
Yes, Greene County receives an average of 20.3 inches of snowfall per year according to NOAA climate normals.
How hot does Greene County get in summer?
The average summer temperature (June-August) in Greene County is 72.7°F. The county experiences an average of 9 days per year above 90°F.
How cold are winters in Greene County?
The average winter temperature (December-February) in Greene County is 32.9°F. January, typically the coldest month, averages 30.2°F.

Track your own weather in Greene 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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