Darke County Climate

Darke County, Ohio

JanFebMarAprMayJunJulAugSepOctNovDec51.9°AVG °F

Avg Annual Temp

51.9°F

Annual Precip

40.0"

Annual Snowfall

26.0"

Extreme Heat Days

12.4

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
2.8"
2.2"
3.2"
4.1"
4.2"
4.4"
4.0"
3.3"
2.9"
2.9"
3.1"
2.8"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring40°63°11.6"Summer71°74°11.7"Fall42°66°8.9"Winter27°32°7.9"20°40°60°80°100°

National Comparison

Warmer than 39% of US counties
Wetter than 45% of US counties
More seasonal variation than 64% of US counties

Climate Profile

About Darke County Weather

Standard temperate continental patterns

Darke County averages 51.9°F annually, aligning closely with the mid-range of the national climate distribution. This inland region experiences the full breadth of four distinct seasons.

Mirroring the state temperature average

At 51.9°F, the county sits just slightly above the Ohio state average of 51.5°F. It represents a typical temperature profile for the western part of the state.

Consistent with western Ohio neighbors

Darke County's 40.0 inches of precipitation is nearly identical to the state average of 41.2 inches. Its climate is slightly cooler than southern neighbors like Fayette County, which averages 51.8°F but sees less snow.

Moderate snow and steady heat

The region receives 26.0 inches of snow annually, with winter temperatures averaging 29.8°F. Summers bring 12 extreme heat days over 90°F, concentrated mostly in the peak of July.

Equip for standard Midwestern winters

Reliable insulation is key for the 27.0°F January lows, while 26 inches of snow requires basic clearing equipment. Residents should plan for 12 days of high heat with efficient cooling systems.

Frequently Asked Questions

What is the average temperature in Darke County?
The average annual temperature in Darke County, OH is 51.9°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Darke County get?
Darke County receives an average of 40.0 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 Darke County?
Yes, Darke County receives an average of 26.0 inches of snowfall per year according to NOAA climate normals.
How hot does Darke County get in summer?
The average summer temperature (June-August) in Darke County is 72.5°F. The county experiences an average of 12.4 days per year above 90°F.
How cold are winters in Darke County?
The average winter temperature (December-February) in Darke County is 29.8°F. January, typically the coldest month, averages 27.0°F.

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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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