Martin County Climate
Martin County, Kentucky
Avg Annual Temp
55.0°F
Annual Precip
47.7"
Annual Snowfall
—
Extreme Heat Days
22
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Martin County Weather
Moderate Temperatures in the Appalachian Foothills
Martin County's annual average temperature of 55.0°F aligns closely with the national median. The climate is humid and temperate, typical of the central Appalachian region.
Cooler Than the Kentucky Average
The county stays cooler than the Kentucky state average of 56.2°F by over a degree. This temperature gap is most noticeable during the winter months in eastern Kentucky.
Drier Than Many Kentucky Peers
Martin County receives 47.7 inches of rain annually, which is notably lower than the state average of 50.6 inches. It is also cooler and drier than western Kentucky counties like Marshall.
Mild Summers and Chilly Winters
The county experiences 22 extreme heat days per year, with July temperatures averaging a comfortable 74.9°F. Winters are cold, with January averages dipping to 34.0°F.
Focus on Winter Readiness
With lower heat risks than the rest of the state, residents should focus on home insulation for the cold winter months. While annual snowfall data is limited, the sub-freezing January nights require reliable heating.
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.