Viewing Station: WY-LM-290 : Cheyenne 2.1 ESE
Jun 2, 2026 - Sep 20, 202694 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.40"
September 1-20, 2026(19 of 20 days covered by obs)
NOAA Normal
0.96"
Departure from Normal
-0.56" : 42% of Normal
Year-To-Date: 4.98"
Jan 1 to Sep 20, 2026(108 of 263 days covered by obs)
NOAA Normal
12.57"
Departure from Normal
-7.59" : 40% of Normal
Water Year-To-Date: 4.98"
Oct 1, 2025 to Sep 20, 2026(108 of 355 days covered by obs)
NOAA Normal
14.64"
Departure from Normal
-9.66" : 34% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.33
0.27
0.06
Feb
0.48
0.45
0.03
Mar
0.94
0.87
0.07
Apr
1.68
1.62
0.06
May
2.52
2.55
-0.03
Jun
2.22
2.26
-0.04
Jul
1.99
2.00
-0.01
Aug
1.45
1.64
-0.19
Sep
1.44
1.48
-0.04
Oct
1.06
1.01
0.05
Nov
0.57
0.54
0.03
Dec
0.44
0.42
0.02
15.12
15.11
0.01