Oldham County Climate
Oldham County, Kentucky
Avg Annual Temp
55.2°F
Annual Precip
52.9"
Annual Snowfall
—
Extreme Heat Days
36.7
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Oldham County Weather
A Temperate Climate with High Humidity
Oldham County's 55.2°F average temperature reflects a classic temperate climate slightly warmer than the national median. The area is notably wet, receiving 52.9 inches of precipitation annually.
Cooler than the Kentucky Average
At 55.2°F, Oldham County is a full degree cooler than the Kentucky state average of 56.2°F. It represents a more moderate temperature profile within the Bluegrass region.
Wetter than Southern Kentucky Neighbors
The county receives 52.9 inches of rain, which is higher than the state average and nearby Ohio County. It also experiences 37 extreme heat days, fewer than the state's westernmost regions.
Consistent Rain and Humid Summers
Summers are warm with a July average of 76.4°F and over five weeks of days exceeding 90°F. January is chilly, averaging 31.8°F, though local snowfall data remains limited.
Manage Moisture and Summer Heat
Homeowners should focus on dehumidification and robust gutter systems to handle the high rainfall. Reliable air conditioning is a necessity for the 37 days of extreme summer heat.
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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.