Piasa Rainfall Forecast

Today 27 May
20%
Wed 28 May
45%
Thu 29 May
40%
Fri 30 May
25%
Sat 31 May
15%
Sun 1 Jun
20%
Mon 2 Jun
10%

Piasa Rainfall Statistics

May Rainfall

St. Louis Regional Airport (16.2 miles)

Total Rainfall 2025
9.2in
Daily Average 2025
0.1in
Wettest Day 20 May, 2025
2.5in
Wet Days 2025
19/147 (13%)
Total Rainfall April
1.9in
Daily Average April
0.1in
Wettest Day 19 April, 2025
1.4in
Wet Days April
6/30 (20%)
Total Rainfall May
4.2in
Daily Average May
0.2in
Wettest Day 20 May, 2025
2.5in
Wet Days May
6/27 (22%)

Climate (2010–Present)

St. Louis Regional Airport (16.2 miles)

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Annual Average 2020–2024
17.1in
Monthly Average 2020–2025
1.4in
Daily Average 2020–2025
0.1in
Wettest Day 5 November, 2024
4.8in

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