Keokuk County Climate

Keokuk County, Iowa

JanFebMarAprMayJunJulAugSepOctNovDec48.9°AVG °F

Avg Annual Temp

48.9°F

Annual Precip

37.4"

Annual Snowfall

Extreme Heat Days

15.8

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet
1.2"
1.5"
2.3"
3.7"
5.0"
5.1"
3.9"
4.8"
3.5"
2.8"
2.2"
1.5"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring37°60°11.0"Summer70°74°13.8"Fall38°64°8.4"Winter21°27°4.2"20°40°60°80°100°

National Comparison

Warmer than 27% of US counties
Wetter than 39% of US counties
More seasonal variation than 83% of US counties

Climate Profile

About Keokuk County Weather

Keokuk's Balanced Continental Climate

Keokuk County averages 48.9°F annually, sitting comfortably below the national median. It experiences a typical Midwestern cycle of humid summers and snowy, cold winters.

Exceeding State Temperature Norms

The county is slightly warmer than the Iowa state average of 48.0°F. Its annual precipitation of 37.4 inches also exceeds the state norm by more than an inch.

Mid-Range Heat for the Region

Keokuk is cooler than its southern neighbor Jefferson, which sees 24 extreme heat days. Keokuk records only 16 days of 90°F weather, placing it in a more moderate bracket.

Humid Summers and Cold Januarys

The county averages 73.6°F in July, with 16 days hitting 90°F or higher. Winters are cold, with a January average of 20.7°F, though specific annual snowfall totals are currently unavailable.

Prepare for Seasonal Extremes

Residents should service HVAC units to handle the 16 days of extreme summer heat. Though snowfall data is limited, the 20.7°F January average necessitates standard winterization for all homes.

Frequently Asked Questions

What is the average temperature in Keokuk County?
The average annual temperature in Keokuk County, IA is 48.9°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Keokuk County get?
Keokuk County receives an average of 37.4 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
How hot does Keokuk County get in summer?
The average summer temperature (June-August) in Keokuk County is 71.7°F. The county experiences an average of 15.8 days per year above 90°F.
How cold are winters in Keokuk County?
The average winter temperature (December-February) in Keokuk County is 24.0°F. January, typically the coldest month, averages 20.7°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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