Viewing Station: SD-PN-57 : Rapid City 4.7 E
May 21, 2014 - Sep 17, 20251,339 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.55"
September 1-18, 2025(17 of 18 days covered by obs)
NOAA Normal
0.80"
Departure from Normal
-0.25" : 69% of Normal
Year-To-Date: 16.86"
Jan 1 to Sep 18, 2025(252 of 261 days covered by obs)
NOAA Normal
15.73"
Departure from Normal
1.13" : 107% of Normal
Water Year-To-Date: 18.34"
Oct 1, 2024 to Sep 18, 2025(274 of 353 days covered by obs)
NOAA Normal
17.98"
Departure from Normal
0.36" : 102% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.33
0.33
0.00
Feb
0.53
0.50
0.03
Mar
1.01
0.95
0.06
Apr
2.06
2.07
-0.01
May
3.70
3.66
0.04
Jun
3.19
3.05
0.14
Jul
2.49
2.28
0.21
Aug
1.62
1.88
-0.26
Sep
1.33
1.33
0.00
Oct
1.37
1.49
-0.12
Nov
0.49
0.49
0.00
Dec
0.39
0.39
0.00
18.51
18.42
0.09