Scott County Climate

Scott County, Iowa

JanFebMarAprMayJunJulAugSepOctNovDec50.3°AVG °F

Avg Annual Temp

50.3°F

Annual Precip

36.6"

Annual Snowfall

Extreme Heat Days

15.6

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet
1.3"
1.5"
2.5"
3.7"
4.8"
4.7"
4.1"
4.0"
3.4"
2.7"
2.2"
1.8"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring38°62°11.0"Summer72°75°12.8"Fall40°65°8.3"Winter22°28°4.6"20°40°60°80°100°

National Comparison

Warmer than 32% of US counties
Wetter than 37% of US counties
More seasonal variation than 82% of US counties

Climate Profile

About Scott County Weather

Scott County Faces a Temperate Continental Climate

The county averages 50.3°F annually, which is warmer than the state average but still trails the national median. It sits in a transitional zone where Midwest cold meets slightly more temperate southern influences.

A Warmer Pocket in the Hawkeye State

At 50.3°F, Scott County is notably warmer than the Iowa state average of 48.0°F. It ranks among the warmer counties in the state due to its southern and eastern location along the Mississippi River.

Standard Precipitation for the Region

Scott County receives 36.6 inches of precipitation annually, which closely mirrors the Iowa state average of 36.1 inches. This consistent moisture supports the lush landscapes typical of the Quad Cities area.

Warm Summers and Chilly Riverfront Winters

July brings an average temperature of 74.6°F and 16 days of extreme heat reaching above 90°F. January averages a cold 22.1°F, though specific local snowfall data is currently unavailable in the records.

Prioritize Cooling and Humidity Control

With 16 days of extreme heat and warm 72.9°F summer averages, efficient HVAC systems are a priority for residents. Outdoor planning should account for a July peak that is warmer than much of northern Iowa.

Frequently Asked Questions

What is the average temperature in Scott County?
The average annual temperature in Scott County, IA is 50.3°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Scott County get?
Scott County receives an average of 36.6 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
How hot does Scott County get in summer?
The average summer temperature (June-August) in Scott County is 72.9°F. The county experiences an average of 15.6 days per year above 90°F.
How cold are winters in Scott County?
The average winter temperature (December-February) in Scott County is 25.4°F. January, typically the coldest month, averages 22.1°F.

Track your own weather in Scott 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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