Viewing Station: MD-MG-155 : Ashton-Sandy Spring 1.8 NNW
Jan 4, 2024 - Sep 11, 2025405 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.82"
September 1-13, 2025(4 of 13 days covered by obs)
NOAA Normal
1.87"
Departure from Normal
-1.05" : 44% of Normal
Year-To-Date: 30.67"
Jan 1 to Sep 13, 2025(99 of 256 days covered by obs)
NOAA Normal
31.90"
Departure from Normal
-1.23" : 96% of Normal
Water Year-To-Date: 36.60"
Oct 1, 2024 to Sep 13, 2025(182 of 348 days covered by obs)
NOAA Normal
42.72"
Departure from Normal
-6.12" : 86% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.07
3.13
-0.06
Feb
2.65
2.78
-0.13
Mar
3.78
3.94
-0.16
Apr
3.52
3.48
0.04
May
4.37
4.31
0.06
Jun
4.26
4.25
0.01
Jul
4.45
4.25
0.20
Aug
3.93
3.81
0.12
Sep
4.31
4.33
-0.02
Oct
3.90
4.04
-0.14
Nov
3.23
3.26
-0.03
Dec
3.69
3.80
-0.11
45.16
45.38
-0.22