Holtsville Rainfall Forecast

Today 23 May
70%
Sun 24 May
100%
Mon 25 May
80%
Tue 26 May
15%
Wed 27 May
10%
Thu 28 May
10%
Fri 29 May
10%

Holtsville Rainfall Statistics

May Rainfall

Islip, Long Island Mac Arthur Airport (3.1 miles)

Total Rainfall 2026
13.2in
Daily Average 2026
0.1in
Wettest Day 23 February, 2026
2in
Wet Days 2026
54/143 (38%)
Total Rainfall April
2.1in
Daily Average April
0.1in
Wettest Day 25 April, 2026
1.1in
Wet Days April
10/30 (33%)
Total Rainfall May
1.1in
Daily Average May
0.1in
Wettest Day 20 May, 2026
0.4in
Wet Days May
8/23 (35%)

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (3.1 miles)

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Annual Average 2021–2025
44.1in
Monthly Average 2021–2026
3.6in
Daily Average 2021–2026
0.1in
Wettest Day 16 July, 2023
4.6in

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