Louisville, IL
Climate overview — based on NOAA 1991-2020 normals from FLORA 5 NW, IL US.
Year-round temperatures (°F)
Climate summary
Louisville has an annual average temperature of 56.1°F with about 46.4 inches of precipitation per year and 8.3 inches of snow. The warmest month is July (average high 87.7°F), and the coldest is January (average low 23.1°F). May is typically the wettest month (5.27 in) and February the driest (2.60 in). Snow typically falls from November through March.
Best time to visit Louisville
Full guide →Climate change signal
All-time records →0 of 366 (0%) of Louisville's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1890s | 15 | |
| 1900s | 21 | |
| 1910s | 60 | |
| 1920s | 52 | |
| 1930s | 76 | |
| 1940s | 23 | |
| 1950s | 33 | |
| 1960s | 14 | |
| 1970s | 16 | |
| 1980s | 25 | |
| 1990s | 16 | |
| 2000s | 15 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 40.4°F | 23.1°F | 31.8°F | 3.35 in | 3.1 in | 8 |
| February | 46.2°F | 26.3°F | 36.3°F | 2.60 in | 1.7 in | 7 |
| March | 56.8°F | 35.3°F | 46.1°F | 3.80 in | 1.4 in | 8 |
| April | 69.2°F | 44.8°F | 57.0°F | 4.64 in | — | 10 |
| May | 77.1°F | 55.3°F | 66.2°F | 5.27 in | — | 11 |
| June | 85.3°F | 63.3°F | 74.3°F | 4.84 in | — | 9 |
| July | 87.7°F | 66.5°F | 77.1°F | 3.81 in | — | 8 |
| August | 86.4°F | 64.5°F | 75.5°F | 3.41 in | — | 7 |
| September | 81.2°F | 56.9°F | 69.0°F | 3.27 in | — | 6 |
| October | 70.2°F | 46.2°F | 58.2°F | 4.26 in | — | 7 |
| November | 55.5°F | 35.9°F | 45.7°F | 4.12 in | 0.4 in | 8 |
| December | 44.0°F | 27.2°F | 35.6°F | 2.99 in | 1.7 in | 8 |
Climate twins of Louisville
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).