Viewing Station: MD-MG-3 : Potomac 0.9 NNW
Oct 1, 2005 - Sep 11, 20256,952 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.24"
September 1-16, 2025(11 of 16 days covered by obs)
NOAA Normal
2.25"
Departure from Normal
-2.01" : 11% of Normal
Year-To-Date: 40.73"
Jan 1 to Sep 16, 2025(251 of 259 days covered by obs)
NOAA Normal
31.59"
Departure from Normal
9.14" : 129% of Normal
Water Year-To-Date: 46.60"
Oct 1, 2024 to Sep 16, 2025(343 of 351 days covered by obs)
NOAA Normal
42.09"
Departure from Normal
4.51" : 111% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.00
3.03
-0.03
Feb
2.63
2.67
-0.04
Mar
3.71
3.78
-0.07
Apr
3.41
3.40
0.01
May
4.29
4.39
-0.10
Jun
4.25
4.27
-0.02
Jul
4.39
4.38
0.01
Aug
3.66
3.81
-0.15
Sep
4.22
4.44
-0.22
Oct
3.78
3.84
-0.06
Nov
3.13
3.19
-0.06
Dec
3.59
3.64
-0.05
44.06
44.84
-0.78