Viewing Station: SD-LW-26 : Spearfish 2.8 WNW
Apr 18, 2019 - Sep 13, 20262,410 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 0.04"
September 1-13, 2026(12 of 13 days covered by obs)
NOAA Normal
0.66"
Departure from Normal
-0.62" : 6% of Normal
Year-To-Date: 9.14"
Jan 1 to Sep 13, 2026(251 of 256 days covered by obs)
NOAA Normal
17.23"
Departure from Normal
-8.09" : 53% of Normal
Water Year-To-Date: 14.95"
Oct 1, 2025 to Sep 13, 2026(342 of 348 days covered by obs)
NOAA Normal
20.89"
Departure from Normal
-5.94" : 72% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.66
0.62
0.04
Feb
0.88
0.94
-0.06
Mar
1.16
1.25
-0.09
Apr
2.34
2.38
-0.04
May
3.90
3.93
-0.03
Jun
3.52
3.57
-0.05
Jul
2.30
2.38
-0.08
Aug
1.81
1.89
-0.08
Sep
1.52
1.60
-0.08
Oct
2.03
2.21
-0.18
Nov
0.91
0.86
0.05
Dec
0.72
0.79
-0.07
21.75
22.42
-0.67