Viewing Station: ME-CM-128 : South Portland 1.6 S
Jul 18, 2018 - May 10, 20252,472 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.51"
May 1-11, 2025(10 of 11 days covered by obs)
NOAA Normal
1.33"
Departure from Normal
2.18" : 264% of Normal
Year-To-Date: 19.23"
Jan 1 to May 11, 2025(130 of 131 days covered by obs)
NOAA Normal
16.85"
Departure from Normal
2.38" : 114% of Normal
Water Year-To-Date: 29.91"
Oct 1, 2024 to May 11, 2025(222 of 223 days covered by obs)
NOAA Normal
30.75"
Departure from Normal
-0.84" : 97% 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