Viewing Station: NY-SF-110 : Islip Terrace 1.1 NNE
Apr 9, 2017 - Dec 20, 20252,951 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.41"
December 1-22, 2025(20 of 22 days covered by obs)
NOAA Normal
3.12"
Departure from Normal
0.29" : 109% of Normal
Year-To-Date: 36.42"
Jan 1 to Dec 22, 2025(298 of 356 days covered by obs)
NOAA Normal
43.58"
Departure from Normal
-7.16" : 84% of Normal
Water Year-To-Date: 11.27"
Oct 1, 2025 to Dec 22, 2025(77 of 83 days covered by obs)
NOAA Normal
10.63"
Departure from Normal
0.64" : 106% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.40
3.86
-0.46
Feb
3.02
3.38
-0.36
Mar
4.29
4.58
-0.29
Apr
3.93
4.23
-0.30
May
3.42
3.52
-0.10
Jun
3.90
4.03
-0.13
Jul
3.35
3.24
0.11
Aug
3.80
3.99
-0.19
Sep
3.84
3.83
0.01
Oct
4.07
4.46
-0.39
Nov
3.44
3.62
-0.18
Dec
4.40
4.84
-0.44
44.86
47.58
-2.72