Borough of Princeton Rainfall Forecast

Today 25 May
85%
Tue 26 May
No Rain
Wed 27 May
30%
Thu 28 May
20%
Fri 29 May
5%
Sat 30 May
10%
Sun 31 May
10%

Borough of Princeton Rainfall Statistics

May Rainfall

Trenton, Mercer County Airport (9.3 miles)

Total Rainfall 2026
11in
Daily Average 2026
0.1in
Wettest Day 25 January, 2026
1.2in
Wet Days 2026
48/145 (33%)
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
1.9in
Daily Average May
0.1in
Wettest Day 20 May, 2026
0.6in
Wet Days May
10/25 (40%)

Climate (2010–Present)

Trenton, Mercer County Airport (9.3 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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