St. Charles Airport Rainfall Forecast

Today 17 May
No Rain
Sun 18 May
15%
Mon 19 May
80%
Tue 20 May
95%
Wed 21 May
70%
Thu 22 May
25%
Fri 23 May
15%

St. Charles Airport Rainfall Statistics

May Rainfall

St. Charles, St. Charles County Smartt Airport (6.2 miles)

Total Rainfall 2025
11.8in
Daily Average 2025
0.1in
Wettest Day 4 April, 2025
1.9in
Wet Days 2025
35/137 (26%)
Total Rainfall April
6.7in
Daily Average April
0.2in
Wettest Day 4 April, 2025
1.9in
Wet Days April
14/30 (47%)
Total Rainfall May
1.3in
Daily Average May
0.1in
Wettest Day 3 May, 2025
0.4in
Wet Days May
6/17 (35%)

Climate (2010–Present)

St. Charles, St. Charles County Smartt Airport (6.2 miles)

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Annual Average 2020–2024
36.6in
Monthly Average 2020–2025
3.1in
Daily Average 2020–2025
0.1in
Wettest Day 16 July, 2024
3.8in

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