Oldham County Climate
Oldham County, Kentucky
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
55.2°F
Annual Precip
52.9"
Annual Snowfall
—
Extreme Heat Days
37
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
3,944
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Oldham County
Climate Verdict
Oldham County has a mild, with an average annual temperature of 55.2°F, moderately wet with 52.9 inches of annual precipitation, occasional hot days — 36.7 per year above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 31.8°F. summers are warm — July averages 76.4°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
Oldham County closely matches the Kentucky statewide average temperature of 56.0°F, it is somewhat wetter than average for Kentucky.
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.
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.