Islip Rainfall Forecast

Today 17 Mar
100%
Wed 18 Mar
10%
Thu 19 Mar
No Rain
Fri 20 Mar
15%
Sat 21 Mar
30%
Sun 22 Mar
30%
Mon 23 Mar
35%

Islip Rainfall Statistics

March Rainfall

Islip, Long Island Mac Arthur Airport (6.8 miles)

Total Rainfall 2026
8.4in
Daily Average 2026
0.1in
Wettest Day 23 February, 2026
2in
Wet Days 2026
30/76 (39%)
Total Rainfall February
3.2in
Daily Average February
0.1in
Wettest Day 23 February, 2026
2in
Wet Days February
10/28 (36%)
Total Rainfall March
2.7in
Daily Average March
0.2in
Wettest Day 5 March, 2026
1.3in
Wet Days March
9/17 (53%)

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (6.8 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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