Wayne County Climate
Wayne County, Missouri
Avg Annual Temp
56.5°F
Annual Precip
50.7"
Annual Snowfall
8.9"
Extreme Heat Days
49.8
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Wayne County Weather
Wet and Warm Southern Missouri
Wayne County averages 56.5°F annually, which is warmer than the national median and the Missouri average. It also experiences significant annual precipitation.
One of Missouri's Wettest
The county's 50.7 inches of rain far exceeds the state average of 43.8 inches. It also maintains a higher average temperature than the state mean of 54.9°F.
Frequent Heat and Rain
Wayne records 50 extreme heat days, double the count of many northern counties. This combination of heat and 50.7 inches of rain creates a very humid environment.
Intense Summers and Mild Snow
July averages 78.6°F, and heat persists for over 50 days above 90°F. Winters are relatively mild with only 8.9 inches of snowfall.
Prioritize Humidity Control
High-capacity air conditioning and dehumidifiers are vital to manage the 50 days of extreme heat. Homeowners should also ensure sump pumps are ready for the 50.7 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.