Saline County Climate

Saline County, Missouri

JanFebMarAprMayJunJulAugSepOctNovDec54.1°AVG °F

Avg Annual Temp

54.1°F

Annual Precip

42.2"

Annual Snowfall

10.2"

Extreme Heat Days

35.65

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
1.5"
1.9"
3.0"
4.4"
5.5"
4.8"
5.1"
4.1"
4.0"
3.3"
2.6"
2.1"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring43°65°12.8"Summer74°78°14.0"Fall43°68°9.9"Winter28°33°5.5"20°40°60°80°100°

National Comparison

Warmer than 48% of US counties
Wetter than 50% of US counties
More seasonal variation than 75% of US counties

Climate Profile

About Saline County Weather

Saline County mirrors the US climate average

The annual average temperature of 54.1°F is almost exactly in line with the national median. This reflects a balanced continental climate with four distinct and predictable seasons.

Positioned right at the Missouri state average

Saline County’s 54.1°F average is very close to the state mean of 54.9°F. Its 42.2 inches of annual precipitation is also within a few points of the 43.8-inch statewide average.

Consistent weather across the central plains

The county's climate data is nearly identical to Randolph County, which sits just to its northeast. Both regions deal with approximately 10 to 15 inches of snow and similar summer humidity levels.

Strong summer heat with moderate winter snow

The county sees 36 days above 90°F annually, typically concentrated in a hot July where averages hit 77.6°F. Winter brings a manageable 10.1 inches of snow and a January average of 27.9°F.

Prepare for significant seasonal transitions

The ten inches of annual snow requires basic winter gear, while the 36 heat days necessitate a reliable cooling system. Residents should plan for a wide range of outdoor activities given the temperate 54.1°F annual average.

Frequently Asked Questions

What is the average temperature in Saline County?
The average annual temperature in Saline County, MO is 54.1°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Saline County get?
Saline County receives an average of 42.2 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 Saline County?
Yes, Saline County receives an average of 10.2 inches of snowfall per year according to NOAA climate normals.
How hot does Saline County get in summer?
The average summer temperature (June-August) in Saline County is 75.6°F. The county experiences an average of 35.65 days per year above 90°F.
How cold are winters in Saline County?
The average winter temperature (December-February) in Saline County is 31.2°F. January, typically the coldest month, averages 27.9°F.

Track your own weather in Saline County

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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.

Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

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