Cape Girardeau County Climate
Cape Girardeau County, Missouri
Avg Annual Temp
56.9°F
Annual Precip
50.5"
Annual Snowfall
7.5"
Extreme Heat Days
56.6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Cape Girardeau County Weather
Warm and Wet River Climate
At 56.9°F, Cape Girardeau is warmer than the U.S. median. This southeastern county experiences a wetter and more humid climate than the national average.
A Missouri Precipitation Leader
The county surpasses the Missouri rainfall average by nearly 7 inches, totaling 50.5 inches annually. It is also 2 degrees warmer than the state average of 54.9°F.
Intense Regional Summer Heat
It shares a hot profile with Butler County but sees even more extreme heat with 57 days over 90°F. This makes it one of the warmest counties in the region.
Two Months of Extreme Heat
Summers are defined by 57 extreme heat days and a 79.6°F July average. Winters remain relatively mild with only 7.5 inches of annual snow.
Prepare for Humidity and Rain
Robust air conditioning is required to handle the nearly two months of 90-degree weather. Yard maintenance must account for the heavy 50.5-inch annual rainfall.
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.