St. Clair Regional Airport Rainfall Forecast

Today 26 Sep
20%
Sun 27 Sep
20%
Mon 28 Sep
5%
Tue 29 Sep
5%
Wed 30 Sep
50%
Thu 1 Oct
65%
Fri 2 Oct
60%

St. Clair Regional Airport Rainfall Statistics

September Rainfall

Washington Regional Airport (14.3 miles)

Total Rainfall 2026
31.2in
Daily Average 2026
0.1in
Wettest Day 18 May, 2026
2.5in
Wet Days 2026
70/269 (26%)
Total Rainfall August
3.4in
Daily Average August
0.1in
Wettest Day 6 August, 2026
2.1in
Wet Days August
6/31 (19%)
Total Rainfall September
2.8in
Daily Average September
0.1in
Wettest Day 9 September, 2026
2.2in
Wet Days September
6/26 (23%)

Climate (2021–2025)

Washington Regional Airport (14.3 miles)

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Annual Average 2021–2025
5.6in
Monthly Average 2021–2026
0.7in
Daily Average 2021–2026
0.03in
Wettest Day 18 May, 2026
2.5in

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