Morgan County Climate
Morgan County, Missouri
Avg Annual Temp
55.8°F
Annual Precip
44.9"
Annual Snowfall
—
Extreme Heat Days
29.7
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Morgan County Weather
Warm and Damp Ozark Border
Morgan County averages 55.8°F annually, which is warmer than the national median for U.S. counties. It receives 44.9 inches of precipitation, making it one of the wetter regions in the state. This combination of heat and rain creates a lush, humid environment common to the Ozark region.
Warmer than the State Median
The county's average temperature of 55.8°F is nearly a full degree higher than the Missouri average of 54.9°F. Its precipitation level of 44.9 inches also exceeds the state average of 43.8 inches. Morgan is consistently warmer and wetter than the average Missouri county.
Dampest in the Local Region
Morgan County receives 44.9 inches of rain, more than neighbors like Miller or Moniteau. While its annual temperature of 55.8°F is slightly cooler than Miller, it experiences the same 30 days of extreme heat as Monroe and Moniteau. This makes it the regional leader in annual moisture.
Steamy Summers and Mild Winters
July is hot and humid with an average of 78.3°F and 30 days reaching 90°F or higher. Winter remains relatively mild with a January average of 31.3°F. Although official snowfall data is missing, the winter average of 34.1°F suggests rain is more common than snow.
Focus on Moisture Management
With 44.9 inches of annual rain, residents should focus on high-capacity gutters and yard drainage to prevent flooding. The 30 days of extreme heat require well-maintained cooling systems. Prepare for high humidity during the long summer months when the average hits 76.3°F.
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.