The Common Ground at Rotary Park Rainfall Forecast

Today 20 Sep
90%
Mon 21 Sep
90%
Tue 22 Sep
35%
Wed 23 Sep
15%
Thu 24 Sep
35%
Fri 25 Sep
45%
Sat 26 Sep
40%

The Common Ground at Rotary Park Rainfall Statistics

September Rainfall

Islip, Long Island Mac Arthur Airport (4.3 miles)

Total Rainfall 2026
35.4in
Daily Average 2026
0.1in
Wettest Day 20 August, 2026
3.3in
Wet Days 2026
99/263 (38%)
Total Rainfall August
7.9in
Daily Average August
0.3in
Wettest Day 20 August, 2026
3.3in
Wet Days August
13/31 (42%)
Total Rainfall September
4.2in
Daily Average September
0.2in
Wettest Day 13 September, 2026
3.1in
Wet Days September
6/20 (30%)

Climate (2021–2025)

Islip, Long Island Mac Arthur Airport (4.3 miles)

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Annual Average 2021–2025
44.1in
Monthly Average 2021–2026
3.7in
Daily Average 2021–2026
0.1in
Wettest Day 16 July, 2023
4.6in

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