Viewing Station: SD-ST-7 : Fort Pierre 25.0 W
Aug 7, 2017 - Sep 18, 2025462 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.21"
September 1-18, 2025(2 of 18 days covered by obs)
NOAA Normal
0.81"
Departure from Normal
3.40" : 520% of Normal
Year-To-Date: 19.05"
Jan 1 to Sep 18, 2025(35 of 261 days covered by obs)
NOAA Normal
15.62"
Departure from Normal
3.43" : 122% of Normal
Water Year-To-Date: 20.19"
Oct 1, 2024 to Sep 18, 2025(37 of 353 days covered by obs)
NOAA Normal
18.17"
Departure from Normal
2.02" : 111% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.44
0.45
-0.01
Feb
0.56
0.59
-0.03
Mar
0.92
1.00
-0.08
Apr
1.98
1.99
-0.01
May
3.14
3.36
-0.22
Jun
3.25
3.42
-0.17
Jul
2.51
2.48
0.03
Aug
2.01
2.21
-0.20
Sep
1.35
1.50
-0.15
Oct
1.59
1.61
-0.02
Nov
0.49
0.55
-0.06
Dec
0.47
0.51
-0.04
18.71
19.67
-0.96