Viewing Station: SD-PN-56 : Rapid City 9.6 WNW
Apr 21, 2014 - Sep 12, 20264,100 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.22"
September 1-12, 2026(12 of 12 days covered by obs)
NOAA Normal
0.62"
Departure from Normal
-0.40" : 36% of Normal
Year-To-Date: 13.06"
Jan 1 to Sep 12, 2026(255 of 255 days covered by obs)
NOAA Normal
17.35"
Departure from Normal
-4.29" : 75% of Normal
Water Year-To-Date: 15.85"
Oct 1, 2025 to Sep 12, 2026(347 of 347 days covered by obs)
NOAA Normal
19.92"
Departure from Normal
-4.07" : 80% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.38
0.40
-0.02
Feb
0.57
0.55
0.02
Mar
1.09
1.13
-0.04
Apr
2.28
2.35
-0.07
May
4.12
4.12
0.00
Jun
3.34
3.30
0.04
Jul
2.90
2.88
0.02
Aug
2.05
2.17
-0.12
Sep
1.54
1.46
0.08
Oct
1.59
1.66
-0.07
Nov
0.56
0.59
-0.03
Dec
0.42
0.45
-0.03
20.84
21.06
-0.22