Viewing Station: SD-PN-43 : Rapid City 3.9 S
Apr 18, 2012 - Sep 11, 20263,391 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.10"
September 1-12, 2026(11 of 12 days covered by obs)
NOAA Normal
0.56"
Departure from Normal
-0.46" : 18% of Normal
Year-To-Date: 8.90"
Jan 1 to Sep 12, 2026(251 of 255 days covered by obs)
NOAA Normal
16.28"
Departure from Normal
-7.38" : 55% of Normal
Water Year-To-Date: 10.77"
Oct 1, 2025 to Sep 12, 2026(341 of 347 days covered by obs)
NOAA Normal
18.57"
Departure from Normal
-7.80" : 58% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.31
0.36
-0.05
Feb
0.50
0.52
-0.02
Mar
0.94
0.99
-0.05
Apr
2.11
2.19
-0.08
May
3.97
3.97
0.00
Jun
3.22
3.24
-0.02
Jul
2.75
2.70
0.05
Aug
1.92
2.11
-0.19
Sep
1.41
1.48
-0.07
Oct
1.46
1.57
-0.11
Nov
0.48
0.52
-0.04
Dec
0.35
0.39
-0.04
19.42
20.04
-0.62