Viewing Station: MD-MG-63 : Gaithersburg 3.1 NE
Feb 15, 2011 - May 29, 20265,285 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.66"
May 1-29, 2026(29 of 29 days covered by obs)
NOAA Normal
4.09"
Departure from Normal
0.57" : 114% of Normal
Year-To-Date: 15.26"
Jan 1 to May 29, 2026(149 of 149 days covered by obs)
NOAA Normal
17.02"
Departure from Normal
-1.76" : 90% of Normal
Water Year-To-Date: 20.79"
Oct 1, 2025 to May 29, 2026(239 of 241 days covered by obs)
NOAA Normal
27.42"
Departure from Normal
-6.63" : 76% 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
3.88
-0.09
Apr
3.47
3.40
0.07
May
4.37
4.36
0.01
Jun
4.29
4.36
-0.07
Jul
4.31
4.25
0.06
Aug
3.66
3.81
-0.15
Sep
4.29
4.35
-0.06
Oct
3.66
3.91
-0.25
Nov
3.20
3.27
-0.07
Dec
3.54
3.71
-0.17
44.25
45.08
-0.83