Ronkonkoma Rainfall Forecast

Today 3 May
10%
Mon 4 May
No Rain
Tue 5 May
No Rain
Wed 6 May
70%
Thu 7 May
75%
Fri 8 May
35%
Sat 9 May
25%

Ronkonkoma Rainfall Statistics

May Rainfall

Islip, Long Island Mac Arthur Airport (1.2 miles)

Total Rainfall 2026
10.3in
Daily Average 2026
0.1in
Wettest Day 23 February, 2026
2in
Wet Days 2026
40/123 (33%)
Total Rainfall April
0.4in
Daily Average April
0.02in
Wettest Day 2 April, 2026
0.1in
Wet Days April
4/30 (13%)
Total Rainfall May
–
Daily Average May
–
Wettest Day 3 May, 2026
–
Wet Days May
–

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (1.2 miles)

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Annual Average 2021–2025
44.1in
Monthly Average 2021–2026
3.6in
Daily Average 2021–2026
0.1in
Wettest Day 16 July, 2023
4.6in

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