Viewing Station: WY-NT-35 : Casper 9.7 WSW
Jun 1, 2008 - Oct 20, 20256,304 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.09"
October 1-21, 2025(20 of 21 days covered by obs)
NOAA Normal
0.75"
Departure from Normal
0.34" : 146% of Normal
Year-To-Date: 10.13"
Jan 1 to Oct 21, 2025(291 of 294 days covered by obs)
NOAA Normal
10.01"
Departure from Normal
0.12" : 101% of Normal
Water Year-To-Date: 1.09"
Oct 1, 2025 to Oct 21, 2025(20 of 21 days covered by obs)
NOAA Normal
0.75"
Departure from Normal
0.34" : 146% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.51
0.58
-0.07
Feb
0.48
0.90
-0.42
Mar
0.74
1.20
-0.46
Apr
1.45
1.98
-0.53
May
2.12
2.68
-0.56
Jun
1.27
1.39
-0.12
Jul
0.95
1.10
-0.15
Aug
0.78
0.95
-0.17
Sep
0.96
0.98
-0.02
Oct
1.10
1.53
-0.43
Nov
0.54
0.67
-0.13
Dec
0.52
0.77
-0.25
11.42
14.73
-3.31