As of Oct 13, 2026, the latest day this station has reported
How much rain has Warren County, Illinois, had in 2026?
40.06 inches of rain have fallen so far in 2026 at the weather station 4 miles northwest of Monmouth, Warren County, through Oct 13. That is 8.65 inches more than a usual year to date (128% of usual).
- Rain so far
- 40.06 in
- Usual by Oct 13
- 31.41 in
- Percent of usual
- 128%
- 2025 by Oct 13
- 24.04 in
This is Warren County’s 2026 so far, drawn as a Rain Print. Put your name and dates on it: framed $89, print $45.Get Warren County’s 2026 rain and snow drawn as a Rain Print, with your name and dates: framed $89, print $45. Make yours
Prints of 2026 ship in January, once the full year is in.
Want another year, like the drought or the year you married? Rainfall art of any town and year.
Month by month
| Month | Rain, in | Usual, in | Vs usual |
|---|---|---|---|
| Jan 4 days not reported | 0.66 | 1.44 | −0.78 |
| Feb | 0.50 | 1.63 | −1.13 |
| Mar | 3.12 | 2.45 | +0.67 |
| Apr | 6.75 | 3.88 | +2.87 |
| May | 2.05 | 5.50 | −3.45 |
| Jun 2 days not reported | 9.35 | 4.65 | +4.70 |
| Jul | 1.79 | 4.08 | −2.29 |
| Aug 4 days not reported | 11.62 | 3.27 | +8.35 |
| Sep 5 days not reported | 2.93 | 3.23 | −0.30 |
| Oct to the 13th 1 day not reported | 1.29 | 1.28 | +0.01 |
| So far | 40.06 | 31.41 | +8.65 |
2026 so far in Warren County
- Biggest one-day reading: 4.03 inches on Aug 14.
- Longest dry stretch: 25 days in a row with the gauge at zero, Jan 26 to Feb 19.
- 2025 by the same date: 24.04 inches at the same station (it missed 20 days). On the 253 days both years reported, 2026 had 15.32 inches more than 2025.
- On 7 reports the observer read the gauge after more than one day. That rain counts on the day it was read, so it is in the totals but not split by day.
The station, and what usual means
The numbers come from NOAA’s daily record for the station 4 miles northwest of Monmouth (station ID 115772), 8 miles from the middle of Warren County. It reported 270 of the 286 days from Jan 1 to Oct 13; the 16 days with no report count as unknown, not as dry. Rain here means everything the gauge caught: rain, and snow melted down to water. A trace counts as zero. It is read once a day, usually in the morning, and each reading is filed under the day it was read, so an evening storm can show up on the next day.
Usual means NOAA’s 1991 to 2020 daily normals for this station, added up over the same 270 days the station reported, so a missing day counts on neither side.
Why this station: 2 stations inside Warren County reported at least 90% of the days in 2026. Mountain snow sites, and stations far above the rest in the county, come last, since their rain is not what the farms below get. Then the pick goes to one with NOAA normals, then the most days reported, then the one nearest the middle of the county. Your own rain gauge can read differently a few miles away.
Questions
How much rain has Warren County, Illinois, had in 2026?
40.06 inches of rain have fallen so far in 2026 at the weather station 4 miles northwest of Monmouth, Warren County, through Oct 13. That is 8.65 inches more than a usual year to date (128% of usual).
Is Warren County wetter or drier than usual in 2026?
Wetter so far. The weather station 4 miles northwest of Monmouth had 40.06 inches from Jan 1 to Oct 13, 128% of the usual 31.41 inches for the same days.
What was the biggest rain in Warren County in 2026?
4.03 inches on Aug 14, 2026, the biggest one-day reading this year through Oct 13. A reading that covers more than one day is not counted as a one-day rain.
How does 2026 compare with 2025 in Warren County?
From Jan 1 to Oct 13, the weather station 4 miles northwest of Monmouth had 24.04 inches in 2025 (2025 missed 20 days) and 40.06 inches in 2026 (2026 missed 16 days). On the 253 days both years reported, 2026 had 15.32 inches more than 2025.
Next door
- Fulton County 44.24 in, 137%
- Henderson County 39.13 in, 126%
- Knox County 39.38 in, 114%
- McDonough County 41.14 in, 122%
Rain in Illinois, county by county · PRF insurance in Warren County · Farmland Atlas: Warren County