weatherbycounty

Scott County Climate

JanFebMarAprMayJunJulAugSepOctNovDec50.3°AVG °F

Avg Annual Temp

50.3°F

Annual Precip

36.6"

Annual Snowfall

Extreme Heat Days

16

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

Growing Season & Gardening

USDA Hardiness Zone

5b

Minimum winter temperature range for plant survival

Growing Degree Days

3,302

Supports most vegetables & fruits

Last spring frost (32°F): 04/23
First fall frost (32°F): 10/25

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 31% of US counties
Wetter than 37% of US counties
More seasonal variation than 87% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Scott County

Climate Verdict

Scott County has a mild, with an average annual temperature of 50.3°F, moderate rainfall of 36.6 inches per year, rare extreme heat with only 15.600000000000001 days above 90°F annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are very cold — January averages 22.1°F. summers are warm — July averages 74.6°F. Residents experience a substantial 52°F difference between winter and summer.

Outdoor & Gardening Guidance

Growing season and gardening data is currently limited for Scott County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.

Regional Context

Scott County closely matches the Iowa statewide average temperature of 48.0°F.

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 16 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 sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.

Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor
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