As of Oct 13, 2026, the latest day this gauge has reported
How much rain has Cass County, Illinois, had in 2026?
35.55 inches of rain have fallen so far in 2026 at the volunteer rain gauge 5.3 miles north-northeast of Arenzville, Cass County, through Oct 13. That is 2.24 inches more than a usual year to date (107% of usual).
- Rain so far
- 35.55 in
- Usual by Oct 13
- 33.31 in
- Percent of usual
- 107%
- 2025 by Oct 13
- 25.35 in
This is Cass County’s 2026 so far, drawn as a Rain Print. Put your name and dates on it: framed $89, print $45.Get Cass 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 2 days not reported | 1.37 | 1.95 | −0.58 |
| Feb 1 day not reported | 0.30 | 2.03 | −1.73 |
| Mar | 5.22 | 2.67 | +2.55 |
| Apr | 8.93 | 4.19 | +4.74 |
| May | 2.74 | 4.66 | −1.92 |
| Jun | 6.57 | 4.56 | +2.01 |
| Jul | 1.59 | 4.53 | −2.94 |
| Aug | 6.27 | 3.50 | +2.77 |
| Sep | 1.87 | 3.59 | −1.72 |
| Oct to the 13th | 0.69 | 1.63 | −0.94 |
| So far | 35.55 | 33.31 | +2.24 |
2026 so far in Cass County
- Wettest month: April, 8.93 inches.
- Biggest single day: 3.64 inches on Aug 15.
- Longest dry stretch: 20 days in a row with the gauge at zero, Aug 21 to Sep 9.
- 2025 by the same date: 25.35 inches at the same gauge (it missed 4 days). On the 279 days both years reported, 2026 had 9.64 inches more than 2025.
The station, and what usual means
The numbers come from NOAA’s daily record for the volunteer rain gauge 5.3 miles north-northeast of Arenzville (gauge ID US1ILCS0003), 5 miles from the middle of Cass County. It reported 283 of the 286 days from Jan 1 to Oct 13; the 3 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 gauge, added up over the same 283 days the gauge reported, so a missing day counts on neither side. The volunteer gauges started in 1998, so none has 30 years of its own; NOAA estimates the rest from long-record stations nearby.
Why this gauge: it is the only one inside Cass County that reported at least 90% of the days in 2026. Your own rain gauge can read differently a few miles away.
Questions
How much rain has Cass County, Illinois, had in 2026?
35.55 inches of rain have fallen so far in 2026 at the volunteer rain gauge 5.3 miles north-northeast of Arenzville, Cass County, through Oct 13. That is 2.24 inches more than a usual year to date (107% of usual).
Is Cass County wetter or drier than usual in 2026?
Wetter so far. The volunteer rain gauge 5.3 miles north-northeast of Arenzville had 35.55 inches from Jan 1 to Oct 13, 107% of the usual 33.31 inches for the same days.
What was the wettest month in Cass County in 2026?
April, with 8.93 inches at the volunteer rain gauge 5.3 miles north-northeast of Arenzville, counting Jan 1 through Oct 13.
What was the biggest rain in Cass County in 2026?
3.64 inches on Aug 15, 2026, the most the gauge caught in one day this year through Oct 13.
How does 2026 compare with 2025 in Cass County?
From Jan 1 to Oct 13, the volunteer rain gauge 5.3 miles north-northeast of Arenzville had 25.35 inches in 2025 (2025 missed 4 days) and 35.55 inches in 2026 (2026 missed 3 days). On the 279 days both years reported, 2026 had 9.64 inches more than 2025.
Next door
- Menard County 38.90 in, 125%
- Morgan County 35.52 in, 109%
- Sangamon County 34.74 in, 103%
- Schuyler County 30.64 in
Rain in Illinois, county by county · PRF insurance in Cass County · Farmland Atlas: Cass County