Viewing Station: SD-LW-15 : Spearfish 0.1 WSW
May 11, 2011 - Sep 16, 20255,039 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.37"
September 1-16, 2025(14 of 16 days covered by obs)
NOAA Normal
0.87"
Departure from Normal
-0.50" : 42% of Normal
Year-To-Date: 24.57"
Jan 1 to Sep 16, 2025(253 of 259 days covered by obs)
NOAA Normal
18.97"
Departure from Normal
5.60" : 129% of Normal
Water Year-To-Date: 29.10"
Oct 1, 2024 to Sep 16, 2025(339 of 351 days covered by obs)
NOAA Normal
23.17"
Departure from Normal
5.93" : 126% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.83
0.70
0.13
Feb
1.07
1.00
0.07
Mar
1.41
1.34
0.07
Apr
2.61
2.51
0.10
May
4.19
4.01
0.18
Jun
3.67
3.61
0.06
Jul
2.40
2.46
-0.06
Aug
1.92
1.92
0.00
Sep
1.64
1.62
0.02
Oct
2.27
2.28
-0.01
Nov
1.05
0.93
0.12
Dec
0.88
0.93
-0.05
23.94
23.31
0.63