Monroe County Climate

Monroe County, Ohio

JanFebMarAprMayJunJulAugSepOctNovDec51.8°AVG °F

Avg Annual Temp

51.8°F

Annual Precip

45.0"

Annual Snowfall

Extreme Heat Days

11.5

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet
3.7"
3.1"
3.9"
3.9"
4.5"
4.5"
4.7"
3.6"
3.7"
3.0"
2.9"
3.6"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring40°61°12.3"Summer69°73°12.8"Fall43°66°9.6"Winter29°34°10.4"20°40°60°80°100°

National Comparison

Warmer than 39% of US counties
Wetter than 56% of US counties
More seasonal variation than 47% of US counties

Climate Profile

About Monroe County Weather

Temperate and Humid Monroe County

Monroe County averages 51.8°F annually, hovering just above the national median temperature. It experiences the high humidity and variable weather typical of the Appalachian plateau.

Slightly Warmer than State Averages

At 51.8°F, Monroe stays marginally warmer than the Ohio average of 51.5°F. The county's location in the southeast keeps it protected from the harshest northern cold fronts.

A High-Precipitation Zone

Monroe receives a significant 45.0 inches of precipitation annually, far exceeding the state average of 41.2 inches. This makes it one of the wettest counties in the region, demanding robust water management.

Consistent Heat and Wet Winters

The county faces 12 days of extreme heat each summer, with July temperatures averaging 72.7°F. While specific snowfall data is limited, winter temperatures average a chilly 31.8°F from December through February.

Focus on Moisture Protection

The high 45-inch annual precipitation requires homeowners to maintain gutters and basement waterproofing. Residents should also prepare for 12 days of 90°F heat with reliable air conditioning systems.

Frequently Asked Questions

What is the average temperature in Monroe County?
The average annual temperature in Monroe County, OH is 51.8°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Monroe County get?
Monroe County receives an average of 45.0 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
How hot does Monroe County get in summer?
The average summer temperature (June-August) in Monroe County is 71.1°F. The county experiences an average of 11.5 days per year above 90°F.
How cold are winters in Monroe County?
The average winter temperature (December-February) in Monroe County is 31.8°F. January, typically the coldest month, averages 29.4°F.

Track your own weather in Monroe County

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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.

Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

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