Viewing Station: ME-CM-128 : South Portland 1.6 S
Jul 18, 2018 - Aug 17, 20262,935 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.67"
August 1-17, 2026(17 of 17 days covered by obs)
NOAA Normal
1.88"
Departure from Normal
0.79" : 142% of Normal
Year-To-Date: 27.96"
Jan 1 to Aug 17, 2026(228 of 229 days covered by obs)
NOAA Normal
28.94"
Departure from Normal
-0.98" : 97% of Normal
Water Year-To-Date: 37.86"
Oct 1, 2025 to Aug 17, 2026(320 of 321 days covered by obs)
NOAA Normal
42.84"
Departure from Normal
-4.98" : 88% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.43
3.55
-0.12
Feb
3.50
3.62
-0.12
Mar
4.17
4.26
-0.09
Apr
4.42
4.56
-0.14
May
3.75
3.67
0.08
Jun
4.33
4.27
0.06
Jul
3.46
3.51
-0.05
Aug
3.43
3.51
-0.08
Sep
3.88
3.71
0.17
Oct
4.97
5.32
-0.35
Nov
4.37
4.29
0.08
Dec
4.56
4.75
-0.19
48.27
49.02
-0.75