Rainfall totals Illinois
No heavy-rain reports were filed in Illinois in the last 24 hours. The state table below has the year to date totals for 2026.
as of
For normal annual precipitation from NCEI 1991-2020 normals, Chicago, Illinois, is the highest placed Illinois city in the ranking, at 77 of 145 tracked cities. Full city precipitation ranking
How much rain did Illinois get?
| City | Year to date | Normal to date | vs normal | Rain days | Last rain |
|---|---|---|---|---|---|
| Chicago | 36.08 inches | 30.79 inches | +5.29 inches (+17%) | 96 | 1.41 inches Oct 1, 2026 |
| Peoria | 34.50 inches | 30.29 inches | +4.21 inches (+14%) | 87 | 0.57 inches Oct 1, 2026 |
Station observations are from GHCN-Daily, with a 1-3 day lag and quality checks by NOAA. Averages are 1991-2020 normals from NCEI.
Rainfall records for Illinois
Rain questions
How many inches of rain per year does Illinois get?
36.2 inches at Peoria to 36.3 inches at Chicago is the range of average annual rainfall among the cities measured here, based on 1991-2020 normals.
How do I find past rainfall totals for Illinois?
This page has year-to-date totals and records for each station. Each city page keeps a day-by-day log. For older station history, use the NCEI past weather portal.
Rain events in Illinois
| Dates | Top | Where | States | Reports |
|---|---|---|---|---|
| September 28 to October 2, 2026 | 10.41 inches | 3 N Lincoln, NE | 14 | 2,469 |
| September 21, 2026 | 1.45 inches | Altamont, IL | 1 | 12 |
Counties with rain reports in Illinois, 2026
- McLean County41 · 2.22 inches
- Knox County31 · 4.41 inches
- Tazewell County26 · 2.48 inches
- Champaign County26 · 1.45 inches
- Sangamon County16 · 2.50 inches
- Woodford County14 · 2.70 inches
- Logan County14 · 1.80 inches
- Piatt County14 · 1.66 inches
- Peoria County13 · 3.59 inches
- Whiteside County12 · 3.25 inches
- Schuyler County11 · 2.99 inches
- Vermilion County10 · 1.50 inches
- Fulton County9 · 2.75 inches
- Henry County8 · 3.00 inches
- Menard County7 · 1.87 inches
- De Witt County6 · 1.92 inches
- Stark County6 · 1.70 inches
- Marshall County6 · 1.56 inches
- Moultrie County5 · 1.92 inches
- Effingham County5 · 1.45 inches
- Jo Daviess County4 · 4.00 inches
- Rock Island County4 · 4.00 inches
- Hancock County4 · 2.70 inches
- De Kalb County3 · 4.25 inches
- Stephenson County3 · 2.30 inches
- Clark County3 · 1.36 inches
- Macon County3 · 1.26 inches
- Edgar County3 · 1.20 inches
- Boone County2 · 3.50 inches
- Carroll County2 · 2.85 inches
- Christian County2 · 1.28 inches
- Douglas County2 · 1.26 inches
- Cass County2 · 1.01 inches
- McHenry County1 · 5.40 inches
- La Salle County1 · 5.00 inches
- Winnebago County1 · 3.00 inches
- Will County1 · 2.61 inches
- McDonough County1 · 2.60 inches
- Cook County1 · 1.90 inches
- Shelby County1 · 1.05 inches
- Jasper County1 · 1.00 inches
A county earns a spot here as soon as one report in the period is filed.
Recent days with reports in Illinois
National Weather Service offices file Local Storm Reports; the Iowa Environmental Mesonet of Iowa State University relays them to this page, where they appear as live spotter reports. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.