Viewing Station: RI-NW-28 : Portsmouth 3.7 NNE
Mar 11, 2020 - Sep 27, 20262,335 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 9.99"
September 1-27, 2026(27 of 27 days covered by obs)
PRISM Normal
3.44"
Departure from Normal
6.55" : 291% of Normal
Year-To-Date: 37.53"
Jan 1 to Sep 27, 2026(268 of 270 days covered by obs)
PRISM Normal
35.26"
Departure from Normal
2.27" : 106% of Normal
Water Year-To-Date: 47.33"
Oct 1, 2025 to Sep 27, 2026(359 of 362 days covered by obs)
PRISM Normal
49.17"
Departure from Normal
-1.84" : 96% 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