Viewing Station: SD-BR-18 : Aberdeen 1.1 NNE
Apr 25, 2009 - Sep 18, 20261,192 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.62"
September 1-19, 2026(7 of 19 days covered by obs)
NOAA Normal
1.32"
Departure from Normal
0.30" : 122% of Normal
Year-To-Date: 12.91"
Jan 1 to Sep 19, 2026(56 of 262 days covered by obs)
NOAA Normal
17.28"
Departure from Normal
-4.37" : 75% of Normal
Water Year-To-Date: 13.62"
Oct 1, 2025 to Sep 19, 2026(74 of 354 days covered by obs)
NOAA Normal
20.46"
Departure from Normal
-6.84" : 67% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.52
0.51
0.01
Feb
0.57
0.60
-0.03
Mar
0.88
0.89
-0.01
Apr
1.85
1.84
0.01
May
3.08
3.31
-0.23
Jun
3.59
3.63
-0.04
Jul
3.19
3.26
-0.07
Aug
2.28
2.35
-0.07
Sep
2.09
2.12
-0.03
Oct
1.91
1.92
-0.01
Nov
0.69
0.69
0.00
Dec
0.58
0.60
-0.02
21.23
21.72
-0.49