Viewing Station: RI-NW-28 : Portsmouth 3.7 NNE
Mar 11, 2020 - Sep 15, 20251,961 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.15"
September 1-16, 2025(15 of 16 days covered by obs)
PRISM Normal
2.04"
Departure from Normal
-0.89" : 56% of Normal
Year-To-Date: 24.88"
Jan 1 to Sep 16, 2025(250 of 259 days covered by obs)
PRISM Normal
33.86"
Departure from Normal
-8.98" : 73% of Normal
Water Year-To-Date: 32.64"
Oct 1, 2024 to Sep 16, 2025(340 of 351 days covered by obs)
PRISM Normal
47.77"
Departure from Normal
-15.13" : 68% of Normal
MonthPRISM Normals
Jan
4.14
Feb
3.67
Mar
5.34
Apr
4.58
May
3.41
Jun
3.82
Jul
3.16
Aug
3.70
Sep
3.82
Oct
4.68
Nov
4.16
Dec
5.07
49.55