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Simpson County Climate

Simpson County, Kentucky

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec57.0°AVG °F

Avg Annual Temp

57.0°F

Annual Precip

53.9"

Annual Snowfall

Extreme Heat Days

44

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet
4.2"
4.2"
4.8"
5.3"
5.5"
4.8"
4.2"
4.1"
4.2"
4.1"
3.8"
4.7"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

7a

Minimum winter temperature range for plant survival

Seasonal Overview

Comfort ZoneSpring47°66°15.6"Summer74°78°13.1"Fall47°69°12.1"Winter35°39°13.1"20°40°60°80°100°

National Comparison

Warmer than 60% of US counties
Wetter than 86% of US counties
More seasonal variation than 48% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Simpson County

Climate Verdict

Simpson County has a mild, with an average annual temperature of 57.0°F, moderately wet with 53.9 inches of annual precipitation, occasional hot days — 44 per year above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 35.1°F. summers are warm — July averages 77.6°F. The 42°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.

Regional Context

Simpson County closely matches the Kentucky statewide average temperature of 56.0°F, it is somewhat wetter than average for Kentucky.

Frequently Asked Questions

What is the average temperature in Simpson County?
The average annual temperature in Simpson County, KY is 57.0°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Simpson County get?
Simpson County receives an average of 53.9 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
How hot does Simpson County get in summer?
The average summer temperature (June-August) in Simpson County is 75.9°F. The county experiences an average of 44 days per year above 90°F.
How cold are winters in Simpson County?
The average winter temperature (December-February) in Simpson County is 37.4°F. January, typically the coldest month, averages 35.1°F.

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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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