Viewing Station: SD-PN-87 : Rapid City 9.5 WNW
Mar 16, 2023 - Sep 18, 2025808 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.75"
September 1-18, 2025(16 of 18 days covered by obs)
NOAA Normal
0.92"
Departure from Normal
0.83" : 189% of Normal
Year-To-Date: 20.98"
Jan 1 to Sep 18, 2025(243 of 261 days covered by obs)
NOAA Normal
17.65"
Departure from Normal
3.33" : 119% of Normal
Water Year-To-Date: 22.94"
Oct 1, 2024 to Sep 18, 2025(328 of 353 days covered by obs)
NOAA Normal
20.22"
Departure from Normal
2.72" : 113% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.38
0.40
-0.02
Feb
0.57
0.56
0.01
Mar
1.09
1.13
-0.04
Apr
2.28
2.35
-0.07
May
4.12
4.13
-0.01
Jun
3.34
3.31
0.03
Jul
2.90
2.89
0.01
Aug
2.05
2.18
-0.13
Sep
1.54
1.47
0.07
Oct
1.59
1.66
-0.07
Nov
0.56
0.60
-0.04
Dec
0.42
0.46
-0.04
20.84
21.14
-0.30