Port Jefferson Harbor Rainfall Forecast

Today 8 Mar
50%
Mon 9 Mar
No Rain
Tue 10 Mar
No Rain
Wed 11 Mar
25%
Thu 12 Mar
60%
Fri 13 Mar
25%
Sat 14 Mar
30%

Port Jefferson Harbor Rainfall Statistics

March Rainfall

Islip, Long Island Mac Arthur Airport (11.2 miles)

Total Rainfall 2026
7.3in
Daily Average 2026
0.1in
Wettest Day 23 February, 2026
2in
Wet Days 2026
25/67 (37%)
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
1.6in
Daily Average March
0.3in
Wettest Day 5 March, 2026
1in
Wet Days March
4/8 (50%)

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (11.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

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

Get WillyWeather+ to remove ads