Viewing Station: SD-CS-42 : Custer 21.4 W
Apr 28, 2024 - Aug 21, 2026819 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.92"
August 1-24, 2026(21 of 24 days covered by obs)
NOAA Normal
1.36"
Departure from Normal
1.56" : 214% of Normal
Year-To-Date: 9.08"
Jan 1 to Aug 24, 2026(221 of 236 days covered by obs)
NOAA Normal
13.37"
Departure from Normal
-4.29" : 68% of Normal
Water Year-To-Date: 12.36"
Oct 1, 2025 to Aug 24, 2026(313 of 328 days covered by obs)
NOAA Normal
15.85"
Departure from Normal
-3.49" : 78% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.52
0.56
-0.04
Feb
0.66
0.73
-0.07
Mar
0.80
0.87
-0.07
Apr
1.71
1.81
-0.10
May
2.83
3.02
-0.19
Jun
2.90
3.17
-0.27
Jul
2.59
2.77
-0.18
Aug
1.76
2.06
-0.30
Sep
1.21
1.25
-0.04
Oct
1.29
1.45
-0.16
Nov
0.62
0.70
-0.08
Dec
0.57
0.58
-0.01
17.46
18.97
-1.51