Roanoke, IL
Climate overview — based on NOAA 1991-2020 normals from ROANOKE, IL US.
Year-round temperatures (°F)
Avg high
Avg low
Best time to visit Roanoke
Full guide →Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | °F | °F | °F | 2.29 in | 6.4 in | 9 |
| February | °F | °F | °F | 1.91 in | 9.1 in | 9 |
| March | °F | °F | °F | 2.75 in | 3.6 in | 10 |
| April | °F | °F | °F | 3.83 in | 0.6 in | 11 |
| May | °F | °F | °F | 4.42 in | — | 12 |
| June | °F | °F | °F | 4.06 in | — | 10 |
| July | °F | °F | °F | 3.74 in | — | 9 |
| August | °F | °F | °F | 3.76 in | — | 9 |
| September | °F | °F | °F | 3.83 in | — | 7 |
| October | °F | °F | °F | 2.94 in | — | 9 |
| November | °F | °F | °F | 2.54 in | 1.2 in | 8 |
| December | °F | °F | °F | 2.18 in | 7.0 in | 9 |
Last spring / first fall frost
All-time recordsHottest, coldest, wettest
Planting calendarWhat to plant, and when