Ellisville, IL
Climate overview — based on NOAA 1991-2020 normals from AVON, IL US.
Year-round temperatures (°F)
Climate summary
Ellisville has an annual average temperature of 49.4°F with about 37.6 inches of precipitation per year and 24 inches of snow. The warmest month is July (average high 83.7°F), and the coldest is January (average low 13.0°F). May is typically the wettest month (4.95 in) and January the driest (1.83 in). Snow typically falls from November through April.
Best time to visit Ellisville
Full guide →Climate change signal
All-time records →210 of 366 (57.4%) of Ellisville'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.
| 1950s | 0 | |
| 1960s | 0 | |
| 1970s | 0 | |
| 1980s | 0 | |
| 1990s | 0 | |
| 2000s | 18 | |
| 2010s | 209 | |
| 2020s | 139 |
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 | 30.8°F | 13.0°F | 21.9°F | 1.83 in | 7.4 in | 7 |
| February | 35.5°F | 16.6°F | 26.1°F | 1.84 in | 6.0 in | 7 |
| March | 48.4°F | 26.3°F | 37.4°F | 2.38 in | 2.7 in | 8 |
| April | 61.8°F | 37.0°F | 49.4°F | 3.62 in | 1.1 in | 10 |
| May | 72.3°F | 49.1°F | 60.7°F | 4.95 in | — | 11 |
| June | 80.5°F | 59.0°F | 69.8°F | 4.38 in | — | 9 |
| July | 83.7°F | 62.3°F | 73.0°F | 4.23 in | — | 8 |
| August | 82.3°F | 59.8°F | 71.1°F | 3.67 in | — | 8 |
| September | 76.8°F | 51.0°F | 63.9°F | 3.65 in | — | 7 |
| October | 64.2°F | 39.8°F | 52.0°F | 2.85 in | — | 8 |
| November | 49.4°F | 28.5°F | 39.0°F | 2.37 in | 1.0 in | 7 |
| December | 36.4°F | 19.5°F | 28.0°F | 1.86 in | 5.8 in | 7 |
Climate twins of Ellisville
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).