Winston County Climate

Winston County, Mississippi

JanFebMarAprMayJunJulAugSepOctNovDec63.5°AVG °F

Avg Annual Temp

63.5°F

Annual Precip

58.9"

Annual Snowfall

Extreme Heat Days

66

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet
5.6"
5.8"
5.5"
5.7"
4.6"
4.3"
4.9"
4.6"
3.8"
4.1"
4.3"
5.6"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring56°71°15.7"Summer78°81°13.8"Fall54°75°12.3"Winter44°48°17.1"20°40°60°80°100°

National Comparison

Warmer than 79% of US counties
Wetter than 89% of US counties
More seasonal variation than 18% of US counties

Climate Profile

About Winston County Weather

Classic Southern Warmth in Winston County

Winston County maintains an annual average temperature of 63.5°F, well above the median for the United States. The region receives a robust 58.9 inches of precipitation throughout the year.

Consistent With Mississippi State Averages

The county’s 63.5°F average temperature is nearly identical to the Mississippi state average of 63.9°F. Its 58.9 inches of rainfall also closely mirrors the statewide norm of 59.6 inches.

A Middle-Ground Climate for the Region

Winston experiences 66 extreme heat days, which is fewer than the 90 days seen in Yazoo County. It is slightly cooler than southern neighbors like Wilkinson but warmer than the northern reaches of the state.

Stable Seasons and Reliable Summer Heat

July temperatures average 81.0°F, contributing to over two months of extreme heat annually. Winter temperatures average 46.3°F, and while snowfall data is limited, the season remains generally mild compared to national standards.

Managing Seasonal Downpours and Heat

Residents should service HVAC units early to prepare for 66 days of 90-degree weather. Additionally, ensure home seals are tight to handle the 58.9 inches of rain that fall during the humid year.

Frequently Asked Questions

What is the average temperature in Winston County?
The average annual temperature in Winston County, MS is 63.5°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Winston County get?
Winston County receives an average of 58.9 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
How hot does Winston County get in summer?
The average summer temperature (June-August) in Winston County is 79.9°F. The county experiences an average of 66 days per year above 90°F.
How cold are winters in Winston County?
The average winter temperature (December-February) in Winston County is 46.3°F. January, typically the coldest month, averages 44.4°F.

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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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