Viewing Station: SD-DY-17 : Webster 9.8 NNE
Jul 23, 2018 - Sep 13, 20262,335 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.12"
September 1-13, 2026(13 of 13 days covered by obs)
NOAA Normal
1.06"
Departure from Normal
-0.94" : 11% of Normal
Year-To-Date: 19.55"
Jan 1 to Sep 13, 2026(256 of 256 days covered by obs)
NOAA Normal
18.60"
Departure from Normal
0.95" : 105% of Normal
Water Year-To-Date: 22.35"
Oct 1, 2025 to Sep 13, 2026(351 of 348 days covered by obs)
NOAA Normal
22.23"
Departure from Normal
0.12" : 101% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.64
0.63
0.01
Feb
0.65
0.60
0.05
Mar
1.00
0.95
0.05
Apr
1.97
2.16
-0.19
May
3.10
2.94
0.16
Jun
3.89
3.78
0.11
Jul
3.80
3.89
-0.09
Aug
2.49
2.51
-0.02
Sep
2.45
2.39
0.06
Oct
2.23
2.20
0.03
Nov
0.72
0.70
0.02
Dec
0.68
0.71
-0.03
23.62
23.46
0.16