Islip Rainfall Forecast

Today 14 Dec
100%
Mon 15 Dec
20%
Tue 16 Dec
25%
Wed 17 Dec
No Rain
Thu 18 Dec
10%
Fri 19 Dec
80%
Sat 20 Dec
20%

Islip Rainfall Statistics

December Rainfall

Islip, Long Island Mac Arthur Airport (6.8 miles)

Total Rainfall 2025
33.8in
Daily Average 2025
0.1in
Wettest Day 31 July, 2025
2.9in
Wet Days 2025
109/348 (31%)
Total Rainfall November
2in
Daily Average November
0.1in
Wettest Day 25 November, 2025
0.7in
Wet Days November
10/30 (33%)
Total Rainfall December
1.4in
Daily Average December
0.1in
Wettest Day 2 December, 2025
1.3in
Wet Days December
2/14 (14%)

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (6.8 miles)

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

Annual Average 2020–2024
45.6in
Monthly Average 2020–2025
3.7in
Daily Average 2020–2025
0.1in
Wettest Day 16 July, 2023
4.6in

Get WillyWeather+ to remove ads