Viewing Station: MD-HW-46 : Marriottsville 2.7 S
Apr 3, 2019 - May 20, 20252,107 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.43"
May 1-21, 2025(15 of 21 days covered by obs)
NOAA Normal
2.89"
Departure from Normal
0.54" : 119% of Normal
Year-To-Date: 10.00"
Jan 1 to May 21, 2025(99 of 141 days covered by obs)
NOAA Normal
16.28"
Departure from Normal
-6.28" : 61% of Normal
Water Year-To-Date: 16.62"
Oct 1, 2024 to May 21, 2025(181 of 233 days covered by obs)
NOAA Normal
27.59"
Departure from Normal
-10.97" : 60% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.13
3.21
-0.08
Feb
2.74
2.85
-0.11
Mar
3.86
4.06
-0.20
Apr
3.66
3.54
0.12
May
4.27
4.27
0.00
Jun
4.35
4.26
0.09
Jul
4.33
4.14
0.19
Aug
4.14
3.93
0.21
Sep
4.46
4.39
0.07
Oct
4.14
4.17
-0.03
Nov
3.48
3.28
0.20
Dec
3.69
3.90
-0.21
46.25
46.00
0.25