Byron, IL
Climate overview — based on NOAA 1991-2020 normals from OREGON, IL US.
Year-round temperatures (°F)
Avg high
Avg low
Best time to visit Byron
Full guide →Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | °F | °F | °F | 1.87 in | 13.6 in | 7 |
| February | °F | °F | °F | 1.65 in | 6.7 in | 6 |
| March | °F | °F | °F | 2.32 in | 3.0 in | 7 |
| April | °F | °F | °F | 3.81 in | 0.8 in | 8 |
| May | °F | °F | °F | 5.23 in | — | 10 |
| June | °F | °F | °F | 5.08 in | — | 9 |
| July | °F | °F | °F | 3.96 in | — | 7 |
| August | °F | °F | °F | 3.73 in | — | 7 |
| September | °F | °F | °F | 3.28 in | — | 7 |
| October | °F | °F | °F | 2.80 in | — | 7 |
| November | °F | °F | °F | 2.35 in | 1.5 in | 6 |
| December | °F | °F | °F | 1.98 in | 6.7 in | 7 |
Last spring / first fall frost
All-time recordsHottest, coldest, wettest
Planting calendarWhat to plant, and when