Grafton Hill Rainfall Forecast

Today 15 May
15%
Sat 16 May
85%
Sun 17 May
65%
Mon 18 May
15%
Tue 19 May
60%
Wed 20 May
60%
Thu 21 May
20%

Grafton Hill Rainfall Statistics

May Rainfall

Dayton / Wright-Patterson Air Force Base (9.3 miles)

Total Rainfall 2026
12.6in
Daily Average 2026
0.1in
Wettest Day 3 March, 2026
1.3in
Wet Days 2026
41/135 (30%)
Total Rainfall April
3.1in
Daily Average April
0.1in
Wettest Day 28 April, 2026
0.8in
Wet Days April
9/30 (30%)
Total Rainfall May
1.6in
Daily Average May
0.1in
Wettest Day 5 May, 2026
0.8in
Wet Days May
6/15 (40%)

Climate (2010–Present)

Dayton / Wright-Patterson Air Force Base (9.3 miles)

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Annual Average 2021–2025
34.2in
Monthly Average 2021–2026
2.9in
Daily Average 2021–2026
0.1in
Wettest Day 28 June, 2025
3in

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