Viewing Station: ME-CM-128 : South Portland 1.6 S
Jul 18, 2018 - Dec 18, 20252,693 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.15"
December 1-19, 2025(18 of 19 days covered by obs)
NOAA Normal
2.79"
Departure from Normal
-1.64" : 41% of Normal
Year-To-Date: 39.42"
Jan 1 to Dec 19, 2025(351 of 353 days covered by obs)
NOAA Normal
46.50"
Departure from Normal
-7.08" : 85% of Normal
Water Year-To-Date: 6.96"
Oct 1, 2025 to Dec 19, 2025(79 of 80 days covered by obs)
NOAA Normal
12.13"
Departure from Normal
-5.17" : 57% 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