Pierron, IL
Climate overview — based on NOAA 1991-2020 normals from HIGHLAND, IL US.
Year-round temperatures (°F)
Avg high
Avg low
Best time to visit Pierron
Full guide →Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | °F | °F | °F | 2.74 in | 3.9 in | 8 |
| February | °F | °F | °F | 2.45 in | 2.0 in | 8 |
| March | °F | °F | °F | 3.42 in | 1.0 in | 10 |
| April | °F | °F | °F | 4.95 in | — | 11 |
| May | °F | °F | °F | 5.18 in | — | 12 |
| June | °F | °F | °F | 4.50 in | — | 9 |
| July | °F | °F | °F | 4.36 in | — | 8 |
| August | °F | °F | °F | 3.81 in | — | 7 |
| September | °F | °F | °F | 3.34 in | — | 7 |
| October | °F | °F | °F | 3.39 in | — | 8 |
| November | °F | °F | °F | 3.64 in | 0.4 in | 8 |
| December | °F | °F | °F | 2.76 in | 2.9 in | 8 |
Last spring / first fall frost
All-time recordsHottest, coldest, wettest
Planting calendarWhat to plant, and when