Viewing Station: ME-CM-8 : Portland 5.1 NW
Jul 22, 2009 - May 30, 20262,614 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 6.67"
May 1-30, 2026(30 of 30 days covered by obs)
NOAA Normal
3.62"
Departure from Normal
3.05" : 184% of Normal
Year-To-Date: 17.62"
Jan 1 to May 30, 2026(150 of 150 days covered by obs)
NOAA Normal
18.87"
Departure from Normal
-1.25" : 93% of Normal
Water Year-To-Date: 28.63"
Oct 1, 2025 to May 30, 2026(242 of 242 days covered by obs)
NOAA Normal
32.82"
Departure from Normal
-4.19" : 87% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.39
3.47
-0.08
Feb
3.40
3.60
-0.20
Mar
4.08
4.22
-0.14
Apr
4.38
4.55
-0.17
May
3.74
3.67
0.07
Jun
4.39
4.35
0.04
Jul
3.53
3.55
-0.02
Aug
3.47
3.51
-0.04
Sep
3.92
3.78
0.14
Oct
5.08
5.38
-0.30
Nov
4.39
4.21
0.18
Dec
4.48
4.71
-0.23
48.25
49.00
-0.75