Viewing Station: MD-MG-120 : Poolesville 5.4 W
Nov 1, 2017 - Aug 11, 20262,474 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.90"
August 1-11, 2026(11 of 11 days covered by obs)
NOAA Normal
1.21"
Departure from Normal
1.69" : 240% of Normal
Year-To-Date: 21.81"
Jan 1 to Aug 11, 2026(164 of 223 days covered by obs)
NOAA Normal
26.09"
Departure from Normal
-4.28" : 84% of Normal
Water Year-To-Date: 25.62"
Oct 1, 2025 to Aug 11, 2026(227 of 315 days covered by obs)
NOAA Normal
36.07"
Departure from Normal
-10.45" : 71% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.92
3.00
-0.08
Feb
2.48
2.49
-0.01
Mar
3.49
3.70
-0.21
Apr
3.31
3.44
-0.13
May
4.26
4.39
-0.13
Jun
4.25
4.27
-0.02
Jul
4.17
4.06
0.11
Aug
3.40
3.50
-0.10
Sep
4.06
4.45
-0.39
Oct
3.61
3.84
-0.23
Nov
2.94
3.14
-0.20
Dec
3.43
3.61
-0.18
42.32
43.89
-1.57