Martin County Climate
Martin County, Indiana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
55.8°F
Annual Precip
50.3"
Annual Snowfall
13.4"
Extreme Heat Days
29
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
4,080
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Martin County
Climate Verdict
Martin County has a mild, with an average annual temperature of 55.8°F, moderately wet with 50.3 inches of annual precipitation, occasional hot days — 29.45 per year above 90°F, light snow averaging 13.4 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 31.9°F. summers are warm — July averages 76.9°F. The 45°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
Martin County is 3.4°F warmer than the Indiana statewide average of 52.4°F, it is also noticeably wetter, receiving 6.0 inches more precipitation than the state average.
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 sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.