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Randolph County Climate

Randolph County, Missouri

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec54.2°AVG °F

Avg Annual Temp

54.2°F

Annual Precip

42.7"

Annual Snowfall

15.1"

Extreme Heat Days

27

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
1.9"
2.1"
3.3"
4.6"
5.1"
5.2"
4.5"
3.9"
4.0"
3.4"
2.6"
2.2"
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

3,905

Supports most vegetables & fruits

Last spring frost (32°F): 04/13
First fall frost (32°F): 10/25

Seasonal Overview

Comfort ZoneSpring44°65°13.0"Summer73°77°13.6"Fall44°68°10.0"Winter28°33°6.1"20°40°60°80°100°

National Comparison

Warmer than 48% of US counties
Wetter than 52% of US counties
More seasonal variation than 80% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Randolph County

Climate Verdict

Randolph County has a mild, with an average annual temperature of 54.2°F, moderately wet with 42.7 inches of annual precipitation, occasional hot days — 26.6 per year above 90°F, light snow averaging 15.1 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 28.0°F. summers are warm — July averages 77.3°F. The 49°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

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

Regional Context

Randolph County closely matches the Missouri statewide average temperature of 54.9°F.

Climate Profile

About Randolph County Weather

Randolph County matches the national climate rhythm

The county maintains an average annual temperature of 54.2°F, placing it right in line with the national median for the continental United States. This temperate profile is typical for a humid continental region with distinct seasonal shifts.

Cooler than the average Missouri baseline

Randolph County's annual temperature of 54.2°F sits just below the Missouri state average of 54.9°F. This indicates it is slightly cooler than the southern half of the state while remaining warmer than the northern border counties.

Sharing the weather with Central Missouri peers

Its 42.7 inches of annual rainfall closely tracks with nearby Saline County's 42.2 inches. While it receives slightly more rain than Scotland County to the north, it shares the same moderate humidity levels common across the central region.

Steady snow and humid summer peaks

Residents experience a modest 15.1 inches of annual snowfall and an average of 27 extreme heat days over 90°F. January lows average 28.0°F, while July highs reach a humid 77.3°F on average.

Prepare for a balanced four-season cycle

Homeowners should invest in dual heating and cooling systems to handle the temperature swing between winter lows and summer heat. Keep snow shovels ready for the 15-inch annual snowfall and stay hydrated during the month-long stretch of 90-degree days.

Frequently Asked Questions

What is the average temperature in Randolph County?
The average annual temperature in Randolph County, MO is 54.2°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Randolph County get?
Randolph County receives an average of 42.7 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 Randolph County?
Yes, Randolph County receives an average of 15.1 inches of snowfall per year according to NOAA climate normals.
How hot does Randolph County get in summer?
The average summer temperature (June-August) in Randolph County is 75.4°F. The county experiences an average of 27 days per year above 90°F.
How cold are winters in Randolph County?
The average winter temperature (December-February) in Randolph County is 31.3°F. January, typically the coldest month, averages 28.0°F.

Track your own weather in Randolph 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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