Jefferson County Climate
Jefferson County, Mississippi
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
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Annual Precip
61.3"
Annual Snowfall
0.4"
Extreme Heat Days
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Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Jefferson County
Climate Verdict
Climate data for Jefferson County is currently being compiled from NOAA sources. Check back soon for detailed weather normals.
Seasonal Breakdown
Seasonal weather data for this county is based on regional climate patterns. Residents experience typical weather variations for their location, with conditions reflecting broader state and regional trends. Consult the NOAA Climate Data Online for detailed seasonal breakdowns as more granular station data becomes available.
Outdoor & Gardening Guidance
Growing season and gardening guidance for Jefferson County will be added as data becomes available.
Regional Context
Comparative climate data for Jefferson County is being processed.
Climate Profile
About Jefferson County Weather
Lush Landscapes and Heavy Rain
Jefferson County receives 61.3 inches of annual rain, which is much higher than the national average for precipitation. This water-rich climate supports the dense forests and greenery of Southwest Mississippi.
Consistent Precipitation Across the State
The county's 61.3 inches of rainfall sits just above the Mississippi state average of 59.6 inches. While specific temperature rankings are limited, it follows the state's humid subtropical pattern.
Similar Rainfall to Regional Neighbors
With 61.3 inches of rain, Jefferson shares a similar moisture profile with its southern neighbor, Jefferson Davis County. Both counties experience a climate defined by heavy annual precipitation and very little snow.
Rare Snow and Damp Winters
The county records just 0.4 inches of snow annually, making winter accumulation a very rare event. While specific seasonal temperature data is limited, residents typically experience long, humid summers.
Focusing on Waterproofing and Drainage
With 61.3 inches of rain per year, maintaining proper home drainage is the most important climate consideration. Winter gear can remain minimal since the county averages less than half an inch of snow.
Frequently Asked Questions
How much rain does Jefferson County get?
Does it snow in Jefferson 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.