Dyer County Climate
Dyer County, Tennessee
Avg Annual Temp
60.1°F
Annual Precip
53.3"
Annual Snowfall
—
Extreme Heat Days
52.9
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Dyer County Weather
Subtropical Heat and High Humidity
Dyer County's 60.1°F annual average is well above the national median, indicating a consistently warm climate. The region experiences heavy precipitation, totaling 53.3 inches annually.
Warmer Than the State Norm
At 60.1°F, Dyer is exactly 2 degrees warmer than the Tennessee state average of 58.1°F. This warmth is driven by high summer peaks, with July averages reaching 80.4°F.
West Tennessee Thermal Peaks
Dyer is warmer than neighboring Crockett County, averaging 53 extreme heat days compared to Crockett's 43. Both counties share similar rainfall patterns, staying within a few inches of each other.
Sweltering Summers and Mild Winters
Residents face 53 days of temperatures at or above 90°F during the long summer. While snowfall data is limited, winter remains mild with a January average of 38.3°F.
Heat Safety and Hydration
With 53 extreme heat days, residents should prioritize hydration and cooling during the 80.4°F July peaks. Be prepared for sudden heavy downpours that contribute to the 53.3 inches of annual rain.
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.