Williamson Airport Rainfall Forecast

Today 18 Jul
50%
Sat 19 Jul
60%
Sun 20 Jul
50%
Mon 21 Jul
55%
Tue 22 Jul
25%
Wed 23 Jul
10%
Thu 24 Jul
10%

Williamson Airport Rainfall Statistics

July Rainfall

Mattoon / Charleston, Coles County Memorial Airport (13 miles)

Total Rainfall 2025
21.4in
Daily Average 2025
0.1in
Wettest Day 4 April, 2025
2.9in
Wet Days 2025
68/199 (34%)
Total Rainfall June
4.6in
Daily Average June
0.2in
Wettest Day 25 June, 2025
1in
Wet Days June
13/30 (43%)
Total Rainfall July
1.8in
Daily Average July
0.1in
Wettest Day 6 July, 2025
0.9in
Wet Days July
7/18 (39%)

Climate (2010–Present)

Mattoon / Charleston, Coles County Memorial Airport (13 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 9 July, 2024
3.6in

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