Martin County Climate
Martin County, Indiana
Avg Annual Temp
55.8°F
Annual Precip
50.3"
Annual Snowfall
13.4"
Extreme Heat Days
29.45
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Martin County Weather
Warm and High-Precipitation Climate
Martin County averages 55.8°F, making it warmer than the national median. It is a wet region, receiving 50.3 inches of annual precipitation.
One of Indiana’s Warmest Counties
At 55.8°F, Martin County is significantly warmer than the state average of 52.2°F. It also exceeds the state precipitation average by over six inches.
Much Warmer than Northern Indiana
Martin County is over five degrees warmer on average than Lake County. It experiences more than double the extreme heat days of its northern counterparts.
Intense Summer Heat and Rain
The county faces 29 days of extreme heat over 90°F each year. Winter is mild, averaging 34.6°F with only 13.4 inches of total snowfall.
Prepare for a Hot Summer
With nearly a full month of 90°F+ days, high-efficiency cooling is the top priority. Homeowners should also ensure proper drainage to handle over 50 inches of 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.