Mount Sinai Harbor Rainfall Forecast

Today 8 Aug
60%
Sun 9 Aug
15%
Mon 10 Aug
5%
Tue 11 Aug
30%
Wed 12 Aug
35%
Thu 13 Aug
35%
Fri 14 Aug
15%

Mount Sinai Harbor Rainfall Statistics

August Rainfall

Islip, Long Island Mac Arthur Airport (11.8 miles)

Total Rainfall 2026
25.2in
Daily Average 2026
0.1in
Wettest Day 6 July, 2026
2.5in
Wet Days 2026
83/220 (38%)
Total Rainfall July
7.6in
Daily Average July
0.2in
Wettest Day 6 July, 2026
2.5in
Wet Days July
9/31 (29%)
Total Rainfall August
2in
Daily Average August
0.3in
Wettest Day 3 August, 2026
1.9in
Wet Days August
3/8 (38%)

Climate (2021–2025)

Islip, Long Island Mac Arthur Airport (11.8 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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