Viewing Station: WY-CR-43 : Casper 29.1 S
May 5, 2026 - Sep 20, 202650 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.27"
September 1-20, 2026(20 of 20 days covered by obs)
NOAA Normal
0.71"
Departure from Normal
-0.44" : 38% of Normal
Year-To-Date: 5.19"
Jan 1 to Sep 20, 2026(123 of 263 days covered by obs)
NOAA Normal
10.70"
Departure from Normal
-5.51" : 49% of Normal
Water Year-To-Date: 5.19"
Oct 1, 2025 to Sep 20, 2026(123 of 355 days covered by obs)
NOAA Normal
13.77"
Departure from Normal
-8.58" : 38% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.79
0.76
0.03
Feb
0.84
0.77
0.07
Mar
1.12
1.10
0.02
Apr
1.95
1.76
0.19
May
2.27
2.36
-0.09
Jun
1.28
1.58
-0.30
Jul
0.93
1.02
-0.09
Aug
0.81
0.86
-0.05
Sep
1.06
1.01
0.05
Oct
1.36
1.34
0.02
Nov
0.86
0.90
-0.04
Dec
0.85
0.78
0.07
14.12
14.24
-0.12