Viewing Station: MD-SM-22 : Great Mills 4.0 S
Sep 19, 2017 - Jan 21, 20261,769 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.58"
January 1-21, 2026(20 of 21 days covered by obs)
NOAA Normal
2.06"
Departure from Normal
-0.48" : 77% of Normal
Year-To-Date: 1.58"
Jan 1 to Jan 21, 2026(20 of 21 days covered by obs)
NOAA Normal
2.06"
Departure from Normal
-0.48" : 77% of Normal
Water Year-To-Date: 8.22"
Oct 1, 2025 to Jan 21, 2026(108 of 113 days covered by obs)
NOAA Normal
12.64"
Departure from Normal
-4.42" : 65% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.04
3.24
-0.20
Feb
2.68
2.78
-0.10
Mar
3.80
3.97
-0.17
Apr
3.26
3.30
-0.04
May
3.58
3.72
-0.14
Jun
4.18
4.16
0.02
Jul
4.53
4.68
-0.15
Aug
4.64
4.48
0.16
Sep
4.06
4.06
0.00
Oct
3.87
4.06
-0.19
Nov
3.16
3.16
0.00
Dec
3.55
3.69
-0.14
44.35
45.30
-0.95