Monroe County Climate
Monroe County, Indiana
Avg Annual Temp
53.5°F
Annual Precip
48.2"
Annual Snowfall
17.5"
Extreme Heat Days
20.5
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Monroe County Weather
A Temperate Climate Above the National Median
Monroe County's annual average temperature of 53.5°F sits slightly above the national median for a typical Midwestern hub. This profile fits a humid continental climate where four distinct seasons dictate the local rhythm.
Milder Winters Than the State Average
With an average of 53.5°F, Monroe is warmer than the Indiana state average of 52.2°F. It ranks among the milder counties in the state, avoiding the harsher chills found in the northern regions.
Warmer and Wetter Than Northern Neighbors
Monroe is significantly wetter than neighboring Morgan County, receiving 48.2 inches of rain compared to Morgan's 45.5. It also experiences 21 extreme heat days, nearly double the 12 days seen in Montgomery County.
Significant Summer Heat and Moderate Snow
Summer temperatures average 73.5°F and feature 21 days where the thermometer tops 90°F. Winter remains manageable for the region, averaging 32.2°F with 17.5 inches of annual snowfall.
Prepare for Rain and Summer Peaks
Residents should prepare for heavy rainfall by maintaining clear gutters and reliable sump pumps for the 48.2 inches of annual precipitation. The 21 days of high heat also make efficient home cooling systems a necessary investment.
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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.