Viewing Station: SD-PN-38 : Rapid City 3.5 NE
Jan 20, 2012 - Sep 15, 20254,465 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.65"
September 1-15, 2025(15 of 15 days covered by obs)
NOAA Normal
0.71"
Departure from Normal
-0.06" : 92% of Normal
Year-To-Date: 18.00"
Jan 1 to Sep 15, 2025(258 of 258 days covered by obs)
NOAA Normal
16.14"
Departure from Normal
1.86" : 112% of Normal
Water Year-To-Date: 20.46"
Oct 1, 2024 to Sep 15, 2025(350 of 350 days covered by obs)
NOAA Normal
18.49"
Departure from Normal
1.97" : 111% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.31
0.32
-0.01
Feb
0.51
0.50
0.01
Mar
0.99
0.95
0.04
Apr
2.11
2.10
0.01
May
3.95
3.95
0.00
Jun
3.22
3.22
0.00
Jul
2.58
2.45
0.13
Aug
1.76
2.15
-0.39
Sep
1.41
1.43
-0.02
Oct
1.48
1.49
-0.01
Nov
0.50
0.49
0.01
Dec
0.37
0.38
-0.01
19.19
19.43
-0.24