Viewing Station: WY-LM-142 : Cheyenne 9.6 E
Apr 8, 2013 - Sep 20, 20264,706 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.53"
September 1-20, 2026(20 of 20 days covered by obs)
NOAA Normal
0.95"
Departure from Normal
-0.42" : 56% of Normal
Year-To-Date: 11.66"
Jan 1 to Sep 20, 2026(263 of 263 days covered by obs)
NOAA Normal
12.90"
Departure from Normal
-1.24" : 90% of Normal
Water Year-To-Date: 12.30"
Oct 1, 2025 to Sep 20, 2026(353 of 355 days covered by obs)
NOAA Normal
14.99"
Departure from Normal
-2.69" : 82% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.32
0.28
0.04
Feb
0.46
0.41
0.05
Mar
0.93
0.79
0.14
Apr
1.65
1.59
0.06
May
2.63
2.80
-0.17
Jun
2.37
2.49
-0.12
Jul
2.05
2.09
-0.04
Aug
1.54
1.73
-0.19
Sep
1.43
1.49
-0.06
Oct
1.10
0.98
0.12
Nov
0.57
0.53
0.04
Dec
0.42
0.41
0.01
15.47
15.59
-0.12