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Caldwell County Climate

Caldwell County, Missouri

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec52.0°AVG °F

Avg Annual Temp

52.0°F

Annual Precip

39.6"

Annual Snowfall

10.8"

Extreme Heat Days

29

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
1.2"
1.6"
2.6"
3.9"
5.6"
5.0"
3.9"
4.4"
4.3"
3.1"
2.3"
1.7"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

6a

Minimum winter temperature range for plant survival

Growing Degree Days

3,550

Supports most vegetables & fruits

Last spring frost (32°F): 04/23
First fall frost (32°F): 10/17

Seasonal Overview

Comfort ZoneSpring41°62°12.0"Summer72°76°13.4"Fall41°66°9.8"Winter25°30°4.5"20°40°60°80°100°

National Comparison

Warmer than 40% of US counties
Wetter than 44% of US counties
More seasonal variation than 84% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Caldwell County

Climate Verdict

Caldwell County has a mild, with an average annual temperature of 52.0°F, moderate rainfall of 39.6 inches per year, occasional hot days — 28.9 per year above 90°F, light snow averaging 10.8 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 25.4°F. summers are warm — July averages 76.4°F. Residents experience a substantial 51°F difference between winter and summer.

Outdoor & Gardening Guidance

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

Regional Context

Caldwell County closely matches the Missouri statewide average temperature of 54.9°F, it is somewhat drier than average for Missouri.

Climate Profile

About Caldwell County Weather

Cooler Northern Missouri Climate

Caldwell County averages 52.0°F annually, placing it below the national median temperature. This region favors cooler winters and more moderate summer peaks.

Well Below State Temperature Averages

The county is nearly 3 degrees cooler than the Missouri average of 54.9°F. Annual precipitation of 39.6 inches is also about 4 inches below the state norm.

A Cooler Neighbor to Cass

Caldwell remains consistently cooler than neighboring Cass County to the south. Its 10.8 inches of annual snow is lighter than the snowfall seen in central Missouri.

Bracing Winters and Mild Summers

Winters are brisk with a 28.4°F average, while summers are mild compared to the rest of the state. Only 29 days a year reach the extreme heat threshold of 90°F.

Prepare for Sub-Freezing Winters

Residents should focus on heating efficiency given the 28.4°F average winter temperatures. Cooling needs are lower here, as it sees 10 fewer extreme heat days than the state average.

Frequently Asked Questions

What is the average temperature in Caldwell County?
The average annual temperature in Caldwell County, MO is 52.0°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Caldwell County get?
Caldwell County receives an average of 39.6 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 Caldwell County?
Yes, Caldwell County receives an average of 10.8 inches of snowfall per year according to NOAA climate normals.
How hot does Caldwell County get in summer?
The average summer temperature (June-August) in Caldwell County is 74.3°F. The county experiences an average of 29 days per year above 90°F.
How cold are winters in Caldwell County?
The average winter temperature (December-February) in Caldwell County is 28.4°F. January, typically the coldest month, averages 25.4°F.

Track your own weather in Caldwell 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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