Port Jefferson Rainfall Forecast

Today 2 Apr
5%
Thu 3 Apr
40%
Fri 4 Apr
55%
Sat 5 Apr
70%
Sun 6 Apr
70%
Mon 7 Apr
50%
Tue 8 Apr
10%

Port Jefferson Rainfall Statistics

April Rainfall

Islip, Long Island Mac Arthur Airport (10.6 miles)

Total Rainfall 2025
8.7in
Daily Average 2025
0.1in
Wettest Day 16 February, 2025
1.4in
Wet Days 2025
26/92 (28%)
Total Rainfall March
4.3in
Daily Average March
0.1in
Wettest Day 5 March, 2025
1.3in
Wet Days March
10/31 (32%)
Total Rainfall April
–
Daily Average April
–
Wettest Day
–
Wet Days April
–

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (10.6 miles)

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Annual Average 2020–2024
45.6in
Monthly Average 2020–2025
3.8in
Daily Average 2020–2025
0.1in
Wettest Day 16 July, 2023
4.6in

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