Holbrook Rainfall Forecast

Today 16 May
No Rain
Sun 17 May
10%
Mon 18 May
No Rain
Tue 19 May
5%
Wed 20 May
30%
Thu 21 May
50%
Fri 22 May
15%

Holbrook Rainfall Statistics

May Rainfall

Islip, Long Island Mac Arthur Airport (1.2 miles)

Total Rainfall 2026
12.8in
Daily Average 2026
0.1in
Wettest Day 23 February, 2026
2in
Wet Days 2026
52/136 (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
0.7in
Daily Average May
0.1in
Wettest Day 9 May, 2026
0.3in
Wet Days May
6/16 (38%)

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (1.2 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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