Viewing Station: MD-SM-22 : Great Mills 4.0 S
Sep 19, 2017 - Dec 22, 20251,740 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.41"
December 1-22, 2025(20 of 22 days covered by obs)
NOAA Normal
2.52"
Departure from Normal
-0.11" : 96% of Normal
Year-To-Date: 45.57"
Jan 1 to Dec 22, 2025(338 of 356 days covered by obs)
NOAA Normal
43.32"
Departure from Normal
2.25" : 105% of Normal
Water Year-To-Date: 6.51"
Oct 1, 2025 to Dec 22, 2025(79 of 83 days covered by obs)
NOAA Normal
9.55"
Departure from Normal
-3.04" : 68% 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