Viewing Station: MD-MG-144 : Gaithersburg 2.8 NNE
May 1, 2022 - Jul 27, 20251,118 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.94"
July 1-27, 2025(24 of 27 days covered by obs)
NOAA Normal
3.75"
Departure from Normal
1.19" : 132% of Normal
Year-To-Date: 23.10"
Jan 1 to Jul 27, 2025(194 of 208 days covered by obs)
NOAA Normal
25.34"
Departure from Normal
-2.24" : 91% of Normal
Water Year-To-Date: 28.16"
Oct 1, 2024 to Jul 27, 2025(285 of 300 days covered by obs)
NOAA Normal
35.74"
Departure from Normal
-7.58" : 79% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.04
3.08
-0.04
Feb
2.63
2.70
-0.07
Mar
3.79
3.89
-0.10
Apr
3.47
3.39
0.08
May
4.37
4.35
0.02
Jun
4.29
4.39
-0.10
Jul
4.31
4.25
0.06
Aug
3.66
3.82
-0.16
Sep
4.29
4.36
-0.07
Oct
3.66
3.91
-0.25
Nov
3.20
3.28
-0.08
Dec
3.54
3.71
-0.17
44.25
45.13
-0.88