Viewing Station: MD-MG-74 : Rockville 0.6 SE
Apr 9, 2011 - Jul 20, 20254,204 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 7.27"
July 1-20, 2025(16 of 20 days covered by obs)
NOAA Normal
2.86"
Departure from Normal
4.41" : 254% of Normal
Year-To-Date: 27.08"
Jan 1 to Jul 20, 2025(163 of 201 days covered by obs)
NOAA Normal
24.27"
Departure from Normal
2.81" : 112% of Normal
Water Year-To-Date: 32.69"
Oct 1, 2024 to Jul 20, 2025(237 of 293 days covered by obs)
NOAA Normal
34.84"
Departure from Normal
-2.15" : 94% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.01
3.04
-0.03
Feb
2.64
2.68
-0.04
Mar
3.74
3.81
-0.07
Apr
3.44
3.39
0.05
May
4.30
4.37
-0.07
Jun
4.28
4.24
0.04
Jul
4.43
4.33
0.10
Aug
3.75
3.78
-0.03
Sep
4.26
4.38
-0.12
Oct
3.79
3.87
-0.08
Nov
3.15
3.21
-0.06
Dec
3.63
3.66
-0.03
44.42
44.76
-0.34