Viewing Station: WY-LM-138 : Cheyenne 0.2 SE
Nov 8, 2010 - Sep 10, 20264,732 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.11"
September 1-11, 2026(10 of 11 days covered by obs)
NOAA Normal
0.53"
Departure from Normal
-0.42" : 21% of Normal
Year-To-Date: 9.79"
Jan 1 to Sep 11, 2026(242 of 254 days covered by obs)
NOAA Normal
12.14"
Departure from Normal
-2.35" : 81% of Normal
Water Year-To-Date: 10.73"
Oct 1, 2025 to Sep 11, 2026(332 of 346 days covered by obs)
NOAA Normal
14.21"
Departure from Normal
-3.48" : 76% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.33
0.28
0.05
Feb
0.48
0.47
0.01
Mar
0.94
0.88
0.06
Apr
1.68
1.62
0.06
May
2.52
2.52
0.00
Jun
2.22
2.23
-0.01
Jul
1.99
1.98
0.01
Aug
1.45
1.63
-0.18
Sep
1.44
1.52
-0.08
Oct
1.06
1.01
0.05
Nov
0.57
0.56
0.01
Dec
0.44
0.44
0.00
15.12
15.14
-0.02