Dayton Rainfall Forecast

Today 21 May
100%
Fri 22 May
15%
Sat 23 May
90%
Sun 24 May
100%
Mon 25 May
35%
Tue 26 May
20%
Wed 27 May
15%

Dayton Rainfall Statistics

May Rainfall

Trenton, Mercer County Airport (17.4 miles)

Total Rainfall 2026
9.8in
Daily Average 2026
0.1in
Wettest Day 25 January, 2026
1.2in
Wet Days 2026
45/141 (32%)
Total Rainfall April
1.7in
Daily Average April
0.1in
Wettest Day 25 April, 2026
0.8in
Wet Days April
11/30 (37%)
Total Rainfall May
0.7in
Daily Average May
0.04in
Wettest Day 7 May, 2026
0.3in
Wet Days May
7/21 (33%)

Climate (2010–Present)

Trenton, Mercer County Airport (17.4 miles)

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Annual Average 2021–2025
40.9in
Monthly Average 2021–2026
3.3in
Daily Average 2021–2026
0.1in
Wettest Day 1 September, 2021
5.6in

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