Viewing Station: NY-SF-171 : Islip Terrace 0.2 NNW
Jan 31, 2025 - Dec 30, 2025311 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.42"
December 1-30, 2025(30 of 30 days covered by obs)
NOAA Normal
4.26"
Departure from Normal
-0.84" : 80% of Normal
Year-To-Date: 36.28"
Jan 1 to Dec 30, 2025(326 of 364 days covered by obs)
NOAA Normal
44.72"
Departure from Normal
-8.44" : 81% of Normal
Water Year-To-Date: 10.66"
Oct 1, 2025 to Dec 30, 2025(88 of 91 days covered by obs)
NOAA Normal
11.77"
Departure from Normal
-1.11" : 91% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.40
3.83
-0.43
Feb
3.02
3.35
-0.33
Mar
4.29
4.54
-0.25
Apr
3.93
4.19
-0.26
May
3.42
3.49
-0.07
Jun
3.90
4.00
-0.10
Jul
3.35
3.24
0.11
Aug
3.80
3.98
-0.18
Sep
3.84
3.82
0.02
Oct
4.07
4.43
-0.36
Nov
3.44
3.59
-0.15
Dec
4.40
4.79
-0.39
44.86
47.25
-2.39