Viewing Station: SD-LW-30 : Spearfish 5.3 E
Jul 11, 2023 - May 17, 2026321 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.15"
May 1-18, 2026(3 of 18 days covered by obs)
NOAA Normal
2.49"
Departure from Normal
-2.34" : 6% of Normal
Year-To-Date: 2.44"
Jan 1 to May 18, 2026(19 of 138 days covered by obs)
NOAA Normal
8.43"
Departure from Normal
-5.99" : 29% of Normal
Water Year-To-Date: 7.03"
Oct 1, 2025 to May 18, 2026(44 of 230 days covered by obs)
NOAA Normal
12.57"
Departure from Normal
-5.54" : 56% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.82
0.81
0.01
Feb
1.04
0.97
0.07
Mar
1.43
1.45
-0.02
Apr
2.65
2.68
-0.03
May
4.28
4.08
0.20
Jun
3.60
3.60
0.00
Jul
2.42
2.40
0.02
Aug
1.91
1.86
0.05
Sep
1.61
1.57
0.04
Oct
2.24
2.28
-0.04
Nov
1.03
0.98
0.05
Dec
0.87
0.91
-0.04
23.90
23.59
0.31