Worth County Climate

Worth County, Iowa

JanFebMarAprMayJunJulAugSepOctNovDec43.0°AVG °F

Avg Annual Temp

43.0°F

Annual Precip

35.5"

Annual Snowfall

40.2"

Extreme Heat Days

4.3

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
1.1"
1.0"
2.0"
3.8"
4.8"
5.1"
4.7"
3.9"
3.3"
2.7"
1.7"
1.3"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring30°56°10.6"Summer66°69°13.8"Fall32°59°7.7"Winter13°19°3.4"20°40°60°80°100°

National Comparison

Warmer than 7% of US counties
Wetter than 35% of US counties
More seasonal variation than 89% of US counties

Climate Profile

About Worth County Weather

A Cold Northern Climate Profile

Worth County's 43.0°F annual average is significantly lower than the national median. This northern location results in shorter summers and a much colder overall climate profile.

One of Iowa's Coldest Counties

Worth County ranks well below the state average, sitting 5 degrees cooler than the 48.0°F Iowa mean. Its 35.5 inches of precipitation closely matches the state's average of 36.1 inches.

Cooler Summers than Southern Neighbors

Worth County only sees 4 days of extreme heat annually, far fewer than counties in southern or western Iowa. It records 40.2 inches of snowfall, which is higher than many regional peers.

Dominant Winters and Mild Summers

Winter is intense here, with a January average of only 12.6°F. Summers remain mild and pleasant, featuring a July average of 69.0°F and very few days reaching 90°F.

Winter Preparedness is Top Priority

With over 40 inches of annual snow, high-quality winter gear and snow blowers are essential. Residents should prioritize home insulation for the frigid 16.3°F winter average.

Frequently Asked Questions

What is the average temperature in Worth County?
The average annual temperature in Worth County, IA is 43.0°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Worth County get?
Worth County receives an average of 35.5 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 Worth County?
Yes, Worth County receives an average of 40.2 inches of snowfall per year according to NOAA climate normals.
How hot does Worth County get in summer?
The average summer temperature (June-August) in Worth County is 67.1°F. The county experiences an average of 4.3 days per year above 90°F.
How cold are winters in Worth County?
The average winter temperature (December-February) in Worth County is 16.3°F. January, typically the coldest month, averages 12.6°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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