Viewing Station: SD-PN-57 : Rapid City 4.7 E
Nov 25, 1998 - Sep 25, 20261,700 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.63"
September 1-26, 2026(25 of 26 days covered by obs)
NOAA Normal
1.15"
Departure from Normal
0.48" : 141% of Normal
Year-To-Date: 10.79"
Jan 1 to Sep 26, 2026(267 of 269 days covered by obs)
NOAA Normal
16.08"
Departure from Normal
-5.29" : 67% of Normal
Water Year-To-Date: 12.80"
Oct 1, 2025 to Sep 26, 2026(347 of 361 days covered by obs)
NOAA Normal
18.33"
Departure from Normal
-5.53" : 70% 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