Pearl River County Climate
Pearl River County, Mississippi
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
66.2°F
Annual Precip
65.8"
Annual Snowfall
0.1"
Extreme Heat Days
78
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
6,290
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Pearl River County
Climate Verdict
Pearl River County has a warm, averaging 66.2°F year-round, very wet conditions receiving 65.8 inches of precipitation annually, significant summer heat with 77.5 days annually above 90°F, light snow averaging 0.1 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 49.4°F. summers are hot, with July averaging 80.9°F. The 32°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Pearl River County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Pearl River County closely matches the Mississippi statewide average temperature of 63.9°F, it is also noticeably wetter, receiving 6.3 inches more precipitation than the state average.
Climate Profile
About Pearl River County Weather
A Warm Subtropical Southern Climate
Pearl River County maintains an average annual temperature of 66.2°F, significantly warmer than the national median of approximately 54°F. The region experiences a classic humid subtropical climate with long summers and short, mild winters.
Above Average Heat in South Mississippi
The county's annual average of 66.2°F sits well above the Mississippi state average of 63.9°F. This makes it one of the warmer locations in the state, driven by its proximity to the Gulf Coast.
High Rainfall Compared to Neighbors
With 65.8 inches of annual precipitation, Pearl River is much wetter than the state average of 59.6 inches. It receives more rain than northern neighbors like Rankin County, which sees only 57.4 inches annually.
Sweltering Summers and Barely Any Snow
Residents face 78 extreme heat days per year where temperatures hit or exceed 90°F. Winter remains mild with an average of 51.3°F and a negligible 0.1 inches of annual snowfall.
Prepare for Humidity and Heavy Rain
Efficient HVAC systems are essential here to manage 78 days of intense heat and high humidity. Homeowners should also maintain clear gutters and drainage systems to handle the significant 65.8 inches of yearly rainfall.
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.