Marion County Climate
Marion County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
64.7°F
Annual Precip
49.7"
Annual Snowfall
1.3"
Extreme Heat Days
89
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
6,002
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Marion County
Climate Verdict
Marion County has a warm, averaging 64.7°F year-round, moderately wet with 49.7 inches of annual precipitation, significant summer heat with 89.4 days annually above 90°F, light snow averaging 1.3 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 45.5°F. summers are hot, with July averaging 83.1°F. The 38°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
Marion County closely matches the Texas statewide average temperature of 65.5°F, it is also noticeably wetter, receiving 17.9 inches more precipitation than the state average, the county experiences 15.441873382675809 fewer extreme heat days than the state average.
Climate Profile
About Marion County Weather
Warm and Very Wet Northeast
Marion County features a 64.7°F average temperature, which is about 10 degrees warmer than the national median. This region is characterized by high humidity and heavy annual rainfall.
Average Temperature but Exceptional Rain
While its 64.7°F average is nearly identical to the state's 65.5°F, its rainfall is far from average. At 49.7 inches annually, Marion receives over 50% more precipitation than the state average of 31.9 inches.
The Wettest Corner of Texas
Marion’s 49.7 inches of rain makes it one of the dampest counties in the region, out-pacing many of its neighbors. Its 89 days of extreme heat are slightly fewer than central Texas, thanks to frequent cloud cover and rain.
Damp Winters and Humid Summers
The seasons are defined by moisture, from a 45.5°F January to an 83.1°F July average. Though it gets 89 days of extreme heat, the county also sees a modest 1.3 inches of snow during the winter months.
Plan for High Precipitation
Home maintenance should focus on moisture control and mold prevention given the nearly 50 inches of annual rain. Residents should also prepare for 89 days over 90°F by ensuring reliable air conditioning for the humid summer months.
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.