Louisville, KY Climate & Monthly Averages
The climate of Louisville
Louisville has a humid subtropical climate, marked by hot, humid summers and generally mild winters. Average daytime highs range from about 43°F (6°C) in January to around 87°F (31°C) in July, and the city records roughly 129 days of measurable precipitation a year.
Climate quick facts
- Hottest month: July - highs near 87°F (31°C)
- Coldest month: January - highs near 43°F (6°C)
- Record high: 99°F (37°C) · Record low: -8°F (-22°C) (2015–2024)
- Wettest month: April (12 rainy days) · Sunniest: July (11.7 h sun/day)
- Climate type: humid subtropical - hot, humid summers and generally mild winters
- Snow: about 6 days a year
Temperatures through the year
The warmest stretch of the year centers on July. Highs average 87°F (31°C) and overnight lows stay near 70°F (21°C). The coolest month is January, with typical highs of 43°F (6°C) and lows around 28°F (-2°C). Based on 2015–2024 weather data, temperatures have reached as high as 99°F (37°C) and dropped as low as -8°F (-22°C).
Rain, sun and snow
April is usually the wettest month. It brings about 5.5 inches (139 mm) of rain over 12 days, while November is the driest. July brings the most sunshine, averaging 11.7 hours of sun a day. Snow falls on about 6 days in a typical year, mostly from December through March.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 43° | 28° | 11 | 3.9 in | 5.6 h/day | 70% |
| February | 49° | 30° | 10 | 4.5 in | 6.7 h/day | 68% |
| March | 58° | 38° | 12 | 4.8 in | 7.9 h/day | 67% |
| April | 66° | 46° | 12 | 5.5 in | 9.1 h/day | 68% |
| May | 76° | 58° | 12 | 4.1 in | 10.1 h/day | 73% |
| June | 84° | 65° | 11 | 4.4 in | 11.6 h/day | 72% |
| July | 87° | 70° | 14 | 5.1 in | 11.7 h/day | 76% |
| August | 85° | 68° | 11 | 3.5 in | 11.2 h/day | 75% |
| September | 82° | 63° | 7 | 3.5 in | 10.0 h/day | 72% |
| October | 70° | 52° | 8 | 3.5 in | 8.4 h/day | 71% |
| November | 56° | 39° | 9 | 3.4 in | 6.7 h/day | 71% |
| December | 49° | 33° | 11 | 3.9 in | 5.5 h/day | 74% |
Louisville month by month
Louisville weather in January
January brings highs around 43°F (6°C), lows near 28°F (-2°C), about 11 wet days and roughly 2 snowy days - typically the coldest month of the year in Louisville.
Louisville weather in February
February brings highs around 49°F (9°C), lows near 30°F (-1°C), about 10 wet days and roughly 2 snowy days.
Louisville weather in March
March brings highs around 58°F (14°C), lows near 38°F (3°C), about 12 wet days and roughly 1 snowy days.
Louisville weather in April
April brings highs around 66°F (19°C), lows near 46°F (8°C), about 12 wet days - typically the wettest month of the year in Louisville.
Louisville weather in May
May brings highs around 76°F (24°C), lows near 58°F (14°C), about 12 wet days.
Louisville weather in June
June brings highs around 84°F (29°C), lows near 65°F (19°C), about 11 wet days.
Louisville weather in July
July brings highs around 87°F (31°C), lows near 70°F (21°C), about 14 wet days - typically the hottest month and the sunniest month of the year in Louisville.
Louisville weather in August
August brings highs around 85°F (30°C), lows near 68°F (20°C), about 11 wet days.
Louisville weather in September
September brings highs around 82°F (28°C), lows near 63°F (17°C), about 7 wet days.
Louisville weather in October
October brings highs around 70°F (21°C), lows near 52°F (11°C), about 8 wet days.
Louisville weather in November
November brings highs around 56°F (14°C), lows near 39°F (4°C), about 9 wet days - typically the driest month of the year in Louisville.
Louisville weather in December
December brings highs around 49°F (9°C), lows near 33°F (1°C), about 11 wet days.
Seasons in Louisville
Spring (March through May)
Spring in Louisville is mild, with daytime highs averaging 67°F (19°C) and nights around 47°F (8°C); expect showers on roughly 37 days across the season.
Summer (June through August)
Summer in Louisville is hot, with daytime highs averaging 86°F (30°C) and nights around 68°F (20°C); expect showers on roughly 36 days across the season. With the humidity factored in, afternoons often feel hotter than the thermometer reads - run the numbers through the humidity and dew point converter to see why.
Fall (September through November)
Fall in Louisville is pleasantly warm, with daytime highs averaging 69°F (21°C) and nights around 51°F (11°C); expect showers on roughly 25 days across the season.
Winter (December through February)
Winter in Louisville is chilly, with daytime highs averaging 47°F (8°C) and nights around 30°F (-1°C); expect showers on roughly 32 days across the season, plus around 4 snowy days.
Climate questions, answered
What is the average temperature in Louisville?
Is Louisville hot in summer?
Is Louisville cold in winter?
How many rainy days does Louisville get in a year?
Best time to visit Louisville
The best time to visit Louisville is generally September to November and March, when warm days, manageable rainfall and plenty of daylight line up. Daytime temperatures in that window typically sit near 70°F (21°C).
Pack for Louisville with lightweight, breathable clothing and strong sun protection for the hot months; a warm jacket and layers for the cooler season; a compact umbrella or rain shell - showers are a regular feature. Evenings can feel noticeably cooler than afternoons - July nights average 70°F (21°C).
Louisville temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.