Matthiessen State Park Rainfall Forecast

Today 20 May
100%
Wed 21 May
40%
Thu 22 May
35%
Fri 23 May
No Rain
Sat 24 May
15%
Sun 25 May
35%
Mon 26 May
30%

Matthiessen State Park Rainfall Statistics

May Rainfall

Illinois Valley Regional Airport (7.5 miles)

Total Rainfall 2025
10.3in
Daily Average 2025
0.1in
Wettest Day 31 January, 2025
1.5in
Wet Days 2025
24/140 (17%)
Total Rainfall April
4in
Daily Average April
0.1in
Wettest Day 2 April, 2025
1.3in
Wet Days April
7/30 (23%)
Total Rainfall May
0.7in
Daily Average May
0.04in
Wettest Day 1 May, 2025
0.6in
Wet Days May
2/20 (10%)

Climate (2010–Present)

Illinois Valley Regional Airport (7.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

Annual Average 2020–2024
30.9in
Monthly Average 2020–2025
2.7in
Daily Average 2020–2025
0.1in
Wettest Day 14 December, 2022
3.4in

Get WillyWeather+ to remove ads