Viewing Station: MD-MG-76 : Laytonsville 4.6 NNW
Jul 29, 2012 - Sep 16, 20252,412 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.43"
September 1-17, 2025(16 of 17 days covered by obs)
NOAA Normal
2.49"
Departure from Normal
-2.06" : 17% of Normal
Year-To-Date: 27.01"
Jan 1 to Sep 17, 2025(259 of 260 days covered by obs)
NOAA Normal
32.52"
Departure from Normal
-5.51" : 83% of Normal
Water Year-To-Date: 33.01"
Oct 1, 2024 to Sep 17, 2025(349 of 352 days covered by obs)
NOAA Normal
43.09"
Departure from Normal
-10.08" : 77% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.13
3.27
-0.14
Feb
2.64
2.82
-0.18
Mar
3.92
4.03
-0.11
Apr
3.53
3.46
0.07
May
4.42
4.32
0.10
Jun
4.38
4.52
-0.14
Jul
4.39
4.39
0.00
Aug
3.62
3.93
-0.31
Sep
4.39
4.57
-0.18
Oct
3.73
4.03
-0.30
Nov
3.23
3.36
-0.13
Dec
3.61
3.84
-0.23
44.99
46.54
-1.55