weatherbycounty

Cumberland County Climate

Cumberland County, Illinois

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec55.3°AVG °F

Avg Annual Temp

55.3°F

Annual Precip

42.9"

Annual Snowfall

Extreme Heat Days

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet
2.8"
2.3"
3.1"
4.9"
4.6"
4.9"
4.4"
3.1"
3.0"
3.5"
3.7"
2.7"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

6b

Minimum winter temperature range for plant survival

Seasonal Overview

Comfort ZoneSpring44°65°12.6"Summer74°77°12.3"Fall45°69°10.2"Winter30°35°7.8"20°40°60°80°100°

National Comparison

Warmer than 53% of US counties
Wetter than 53% of US counties
More seasonal variation than 69% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Cumberland County

Climate Verdict

Climate data for Cumberland County is currently being compiled from NOAA sources. Check back soon for detailed weather normals.

Seasonal Breakdown

Seasonal weather data for this county is based on regional climate patterns. Residents experience typical weather variations for their location, with conditions reflecting broader state and regional trends. Consult the NOAA Climate Data Online for detailed seasonal breakdowns as more granular station data becomes available.

Outdoor & Gardening Guidance

Growing season and gardening guidance for Cumberland County will be added as data becomes available.

Regional Context

Comparative climate data for Cumberland County is being processed.

Climate Profile

About Cumberland County Weather

A Wetter Profile Than the National Median

Cumberland County receives 42.9 inches of precipitation annually, exceeding the national median for most continental regions. While specific local temperature averages are unavailable, the county follows a classic humid continental climate pattern.

Surpassing Illinois Average Precipitation

The county's 42.9 inches of annual rainfall sits above the Illinois state average of 41.7 inches. This makes it one of the more moisture-rich counties in the central part of the state.

Consistent Moisture Across the Region

Cumberland shares a similarly damp profile with its neighbors in the Embarras River basin. Without local temperature data, rainfall remains the primary differentiator for this agricultural hub.

Defined Cycles with Significant Rain

Residents navigate four distinct seasons characterized by 42.9 inches of total annual precipitation. The lack of specific heat or snowfall data suggests a reliance on broader regional trends for seasonal planning.

Focus on Moisture Management

Homeowners should prioritize gutter maintenance and basement waterproofing to handle the high annual rainfall. Since specific temperature extremes are not locally tracked, standard Illinois HVAC systems remain the best bet for comfort.

Frequently Asked Questions

What is the average temperature in Cumberland County?
The average annual temperature in Cumberland County, IL is 55.3°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Cumberland County get?
Cumberland County receives an average of 42.9 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
How hot does Cumberland County get in summer?
The average summer temperature (June-August) in Cumberland County is 75.8°F.
How cold are winters in Cumberland County?
The average winter temperature (December-February) in Cumberland County is 33.1°F. January, typically the coldest month, averages 30.3°F.

Track your own weather in Cumberland County

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Data sources: ERA5 Reanalysis (modeled) via Open-Meteo (gap-filled where station data unavailable).. 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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