Viewing Station: SD-LW-15 : Spearfish 0.1 WSW
May 11, 2011 - Oct 17, 20255,070 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.20"
October 1-18, 2025(16 of 18 days covered by obs)
NOAA Normal
1.32"
Departure from Normal
1.88" : 243% of Normal
Year-To-Date: 28.16"
Jan 1 to Oct 18, 2025(284 of 291 days covered by obs)
NOAA Normal
21.06"
Departure from Normal
7.10" : 134% of Normal
Water Year-To-Date: 3.20"
Oct 1, 2025 to Oct 18, 2025(16 of 18 days covered by obs)
NOAA Normal
1.32"
Departure from Normal
1.88" : 243% 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