Viewing Station: SD-LW-27 : Spearfish 2.0 NW
Jun 10, 2019 - Sep 13, 2025276 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.18"
September 1-15, 2025(1 of 15 days covered by obs)
NOAA Normal
0.77"
Departure from Normal
-0.59" : 23% of Normal
Year-To-Date: 13.87"
Jan 1 to Sep 15, 2025(39 of 258 days covered by obs)
NOAA Normal
17.56"
Departure from Normal
-3.69" : 79% of Normal
Water Year-To-Date: 13.87"
Oct 1, 2024 to Sep 15, 2025(39 of 350 days covered by obs)
NOAA Normal
21.29"
Departure from Normal
-7.42" : 65% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.67
0.61
0.06
Feb
0.89
0.93
-0.04
Mar
1.21
1.24
-0.03
Apr
2.38
2.37
0.01
May
3.98
3.93
0.05
Jun
3.54
3.57
-0.03
Jul
2.30
2.37
-0.07
Aug
1.82
1.89
-0.07
Sep
1.54
1.60
-0.06
Oct
2.07
2.21
-0.14
Nov
0.92
0.85
0.07
Dec
0.74
0.79
-0.05
22.06
22.36
-0.30