Viewing Station: ME-CM-143 : Portland 5.4 NW
Oct 1, 2020 - Aug 17, 20262,035 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.64"
August 1-17, 2026(17 of 17 days covered by obs)
NOAA Normal
1.90"
Departure from Normal
-0.26" : 86% of Normal
Year-To-Date: 25.99"
Jan 1 to Aug 17, 2026(229 of 229 days covered by obs)
NOAA Normal
28.81"
Departure from Normal
-2.82" : 90% of Normal
Water Year-To-Date: 37.03"
Oct 1, 2025 to Aug 17, 2026(321 of 321 days covered by obs)
NOAA Normal
42.76"
Departure from Normal
-5.73" : 87% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.39
3.47
-0.08
Feb
3.40
3.59
-0.19
Mar
4.08
4.22
-0.14
Apr
4.38
4.55
-0.17
May
3.74
3.67
0.07
Jun
4.39
4.36
0.03
Jul
3.53
3.56
-0.03
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
49.01
-0.76