Climate averages 1991–2020
Louisville weather
in July.
A hot, wet month: the warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Louisville: daytime highs average 30.4°C and nights cool to about 20.8°C. By daytime temperature it is the warmest month of the year.
Expect about 101 mm of rain on roughly 12 days, which makes July a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 33 min on an average July day.
The nearest other city in this atlas is Lexington (116 km away). In July its highs average 29.4°C, 0.9°C cooler than Louisville, with 105 mm of rain.
Among the 498 cities listed in the United States, Louisville ranks joint 242nd of 498 for the warmest July highs and joint 385th of 498 for the driest July (rainfall, lowest first). The mean July high of those 498 cities is 30.3°C; Louisville is 0.1°C warmer than that mean.
From July to August, average highs fall by 0.4°C to 30.0°C, and monthly rainfall falls from 101 mm to 71 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Louisville climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.2°C-2.9°C | -2.9°C | 91 | 9.7 | 9.810 h |
| February | 7.8°C-1.6°C | -1.6°C | 84 | 9.3 | 10.711 h |
| March | 13.0°C2.7°C | 2.7°C | 114 | 11.4 | 11.912 h |
| April | 19.1°C8.3°C | 8.3°C | 127 | 12.0 | 13.213 h |
| May | 23.9°C13.9°C | 13.9°C | 128 | 12.8 | 14.214 h |
| June | 28.5°C18.7°C | 18.7°C | 102 | 11.7 | 14.815 h |
| July, selected | 30.4°C20.8°C | 20.8°C | 101 | 11.8 | 14.515 h |
| August | 30.0°C20.2°C | 20.2°C | 71 | 9.1 | 13.614 h |
| September | 26.5°C16.5°C | 16.5°C | 77 | 7.7 | 12.512 h |
| October | 19.9°C10.2°C | 10.2°C | 85 | 8.1 | 11.211 h |
| November | 12.6°C4.0°C | 4.0°C | 89 | 9.3 | 10.110 h |
| December | 7.1°C-0.5°C | -0.5°C | 102 | 10.1 | 9.610 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Lexington in JulyUnited States · 116 kmHigh 29.4°C · Low 20.0°C · 105 mm rain
- Bloomington (Indiana), United States in JulyUnited States · 121 kmHigh 29.3°C · Low 19.9°C · 88 mm rain
- Cincinnati in JulyUnited States · 145 kmHigh 28.9°C · Low 19.5°C · 88 mm rain
- Evansville in JulyUnited States · 160 kmHigh 30.8°C · Low 22.0°C · 86 mm rain
- Indianapolis in JulyUnited States · 172 kmHigh 28.5°C · Low 19.5°C · 90 mm rain
- Fishers in JulyUnited States · 190 kmHigh 28.2°C · Low 19.1°C · 87 mm rain
- Carmel in JulyUnited States · 194 kmHigh 28.1°C · Low 19.2°C · 87 mm rain
- Dayton in JulyUnited States · 215 kmHigh 28.4°C · Low 19.5°C · 86 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Louisville) is explained once on the Louisville year overview and on the Sources, method and limits page.