Radcliff, Kentucky Weather
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Climate of Radcliff: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), August is usually the hottest month in Radcliff, with average daytime highs around 31°C. January is the coolest, when nights typically fall to about -4°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 36°C, so the seasons feel very different from each other.
The area receives about 1320 mm of rain in a typical year. Most of it falls from March to July and October to December (around 73% of the yearly total), and May is the wettest month at roughly 140 mm.
For outdoor plans and travel, August to September usually offer the most comfortable weather in Radcliff, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 4° | -4° | 85 mm | 85% |
| Feb | 7° | -3° | 97 mm | 85% |
| Mar | 13° | 2° | 116 mm | 82% |
| Apr | 19° | 8° | 137 mm | 79% |
| May | 24° | 13° | 140 mm | 80% |
| Jun | 28° | 18° | 115 mm | 78% |
| Jul | 31° | 20° | 119 mm | 75% |
| Aug | 31° | 19° | 86 mm | 69% |
| Sep | 28° | 15° | 95 mm | 68% |
| Oct | 20° | 8° | 114 mm | 72% |
| Nov | 13° | 2° | 103 mm | 78% |
| Dec | 7° | -2° | 113 mm | 86% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Radcliff. Values describe typical conditions, not a forecast.
About Radcliff weather
Radcliff is a place in Kentucky's humid subtropical-to-continental climate, located about 49 km south of Louisville. Radcliff gets warm, humid summers (June–August) each year. Radcliff closes out the year with mild-to-cool winters (December–February) with occasional snow. This page shows live, auto-refreshing weather for Radcliff: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/New_York.
Frequently asked questions
Radcliff is about 49 km south of Louisville, in Kentucky.
Radcliff sees mild-to-cool winters (December–February) with occasional snow.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Radcliff's exact coordinates. No fixed schedule, the page updates whenever you load it.
August is usually the hottest month in Radcliff, with average daytime highs of about 31°C and nights around 19°C.
The coldest nights come in January, when the average low is about -4°C and daytime highs reach around 4°C. Frost is possible on clear, calm nights.
Radcliff receives about 1320 mm of rain in a typical year. May is the wettest month at roughly 140 mm, and the main rainy period is March to July and October to December.
August to September usually offer the most comfortable weather in Radcliff, with mild daytime temperatures and little rain.
In November Radcliff typically sees daytime highs near 13°C and lows near 2°C, with about 103 mm of rain over the month and average humidity around 78%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
The current temperature for Radcliff updates automatically at the top of this page — scroll to the hourly strip below to see how it's expected to change over the day.
Radcliff's day-to-day weather follows the broader pattern of Kentucky described above. See the hourly weather forecast or the air quality index for more detail.