Viewing Station: MD-AA-51 : Severn 1.5 SSW
Nov 10, 2011 - Sep 16, 20254,396 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.78"
September 1-16, 2025(16 of 16 days covered by obs)
NOAA Normal
2.37"
Departure from Normal
2.41" : 202% of Normal
Year-To-Date: 33.18"
Jan 1 to Sep 16, 2025(249 of 259 days covered by obs)
NOAA Normal
32.57"
Departure from Normal
0.61" : 102% of Normal
Water Year-To-Date: 39.48"
Oct 1, 2024 to Sep 16, 2025(339 of 351 days covered by obs)
NOAA Normal
43.46"
Departure from Normal
-3.98" : 91% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.04
3.13
-0.09
Feb
2.70
2.85
-0.15
Mar
3.98
4.06
-0.08
Apr
3.46
3.52
-0.06
May
4.01
4.25
-0.24
Jun
4.23
4.20
0.03
Jul
4.47
4.50
-0.03
Aug
4.31
4.11
0.20
Sep
4.44
4.50
-0.06
Oct
4.02
4.15
-0.13
Nov
3.16
3.24
-0.08
Dec
3.71
3.91
-0.20
45.53
46.42
-0.89