Viewing Station: RI-NW-28 : Portsmouth 3.7 NNE
Mar 11, 2020 - May 10, 20262,195 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.51"
May 1-10, 2026(9 of 10 days covered by obs)
PRISM Normal
1.10"
Departure from Normal
-0.59" : 46% of Normal
Year-To-Date: 12.96"
Jan 1 to May 10, 2026(128 of 130 days covered by obs)
PRISM Normal
18.83"
Departure from Normal
-5.87" : 69% of Normal
Water Year-To-Date: 22.76"
Oct 1, 2025 to May 10, 2026(219 of 222 days covered by obs)
PRISM Normal
32.74"
Departure from Normal
-9.98" : 70% 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