Viewing Station: NY-SF-74 : Islip Terrace 0.5 W
Aug 26, 2016 - Dec 16, 20252,882 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.88"
December 1-16, 2025(16 of 16 days covered by obs)
NOAA Normal
2.27"
Departure from Normal
-0.39" : 83% of Normal
Year-To-Date: 35.05"
Jan 1 to Dec 16, 2025(317 of 350 days covered by obs)
NOAA Normal
42.52"
Departure from Normal
-7.47" : 82% of Normal
Water Year-To-Date: 8.37"
Oct 1, 2025 to Dec 16, 2025(73 of 77 days covered by obs)
NOAA Normal
9.71"
Departure from Normal
-1.34" : 86% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.39
3.82
-0.43
Feb
3.02
3.34
-0.32
Mar
4.30
4.53
-0.23
Apr
3.89
4.19
-0.30
May
3.38
3.49
-0.11
Jun
3.89
3.99
-0.10
Jul
3.32
3.25
0.07
Aug
3.81
3.97
-0.16
Sep
3.81
3.82
-0.01
Oct
4.02
4.42
-0.40
Nov
3.42
3.58
-0.16
Dec
4.40
4.77
-0.37
44.65
47.17
-2.52