Marion County Climate
Marion County, Texas
Avg Annual Temp
64.7°F
Annual Precip
49.7"
Annual Snowfall
1.3"
Extreme Heat Days
89.4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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 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.