Rockford Rain and Snow by Month: When Your Gutters Work Hardest
Updated
Short answer
Rockford averages 37.24 inches of precipitation and 37.1 inches of snow a year, with June the wettest month at 5.23 inches and 135.8 days a year with a low at or below freezing (NOAA 1991 to 2020 normals, Rockford airport).
Month by month
| Month | Precipitation (in) | Snow (in) |
|---|---|---|
| Jan | 1.60 | 10.9 |
| Feb | 1.63 | 8.5 |
| Mar | 2.40 | 4.9 |
| Apr | 3.75 | 0.9 |
| May | 4.18 | 0 |
| Jun | 5.23 | 0 |
| Jul | 3.81 | 0 |
| Aug | 4.19 | 0 |
| Sep | 3.62 | 0 |
| Oct | 2.63 | 0.2 |
| Nov | 2.27 | 2.3 |
| Dec | 1.93 | 9.4 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00094822 (Chicago Rockford International Airport).
What it means for gutters
- May through August deliver 17.41 inches, almost half the year, mostly as storms. Gutters need to be clear by late May.
- November and December bring the leaves and the first snow together, so the fall cleaning has a narrow window.
- December through February bring 28.8 inches of snow, and ice loads on gutters that weren't emptied in fall.
By USGS arithmetic, a year of Rockford precipitation on a 1,500 square foot roof is about 34,800 gallons. See how much rain a roof sheds.
Quick answers
What is the wettest month in Rockford?
June, with 5.23 inches on average in NOAA's 1991-2020 normals for the Rockford airport.
Rather have someone else do it?
Tell us the address, how tall the house is and what you need. A local crew calls back with a price before anything is booked.