Westville, IL
Climate overview — based on NOAA 1991-2020 normals from DANVILLE SEWAGE PLT, IL US.
Year-round temperatures (°F)
Avg high
Avg low
Best time to visit Westville
Full guide →Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | °F | °F | °F | 2.68 in | 6.5 in | 9 |
| February | °F | °F | °F | 1.91 in | 2.8 in | 9 |
| March | °F | °F | °F | 3.16 in | 2.0 in | 10 |
| April | °F | °F | °F | 4.18 in | — | 12 |
| May | °F | °F | °F | 4.90 in | — | 13 |
| June | °F | °F | °F | 4.92 in | — | 11 |
| July | °F | °F | °F | 4.24 in | — | 9 |
| August | °F | °F | °F | 3.33 in | — | 8 |
| September | °F | °F | °F | 2.92 in | — | 8 |
| October | °F | °F | °F | 3.56 in | — | 9 |
| November | °F | °F | °F | 3.48 in | 0.5 in | 9 |
| December | °F | °F | °F | 2.65 in | 3.0 in | 9 |
Last spring / first fall frost
All-time recordsHottest, coldest, wettest
Planting calendarWhat to plant, and when