Smith County Climate
Smith County, Mississippi
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
62.4°F
Annual Precip
58.3"
Annual Snowfall
0.8"
Extreme Heat Days
65
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
5,281
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Smith County
Climate Verdict
Smith County has a warm, averaging 62.4°F year-round, very wet conditions receiving 58.3 inches of precipitation annually, significant summer heat with 64.8 days annually above 90°F, light snow averaging 0.8 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 44.3°F. summers are warm — July averages 79.1°F. The 35°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
Smith County closely matches the Mississippi statewide average temperature of 63.9°F.
Climate Profile
About Smith County Weather
Moderate climate in the pine belt
Smith County's average annual temperature of 62.4°F remains higher than the national median but is mild for the region. It features the standard humid subtropical profile with ample rainfall and limited winter ice.
Slightly cooler than the state average
The county's 62.4°F average is actually lower than the Mississippi state average of 63.9°F. This makes Smith County a slightly cooler alternative to its neighbors in the southern half of the state.
A cooler pocket near Simpson County
Compared to Simpson County's 67.5°F, Smith County is notably cooler at 62.4°F. This difference of five degrees is significant for a neighboring county and affects local biodiversity.
Balanced seasons and summer rain
The county sees 65 extreme heat days per year, which is lower than many of its southern neighbors. Winter temperatures average 46.3°F, and the area typically sees less than an inch of snow annually.
Prepare for heavy precipitation
With 58.3 inches of annual rainfall, reliable rain gear is more important than winter coats. The 65 days of extreme heat still require robust cooling systems during the peak of summer.
Frequently Asked Questions
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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.