Viewing Station: WY-NT-126 : Casper 6.6 S
May 17, 2026 - Sep 10, 202690 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.05"
September 1-10, 2026(10 of 10 days covered by obs)
NOAA Normal
0.51"
Departure from Normal
-0.46" : 10% of Normal
Year-To-Date: 5.70"
Jan 1 to Sep 10, 2026(107 of 253 days covered by obs)
NOAA Normal
17.01"
Departure from Normal
-11.31" : 34% of Normal
Water Year-To-Date: 5.70"
Oct 1, 2025 to Sep 10, 2026(107 of 345 days covered by obs)
NOAA Normal
22.96"
Departure from Normal
-17.26" : 25% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.68
1.72
-0.04
Feb
1.75
1.95
-0.20
Mar
2.35
2.56
-0.21
Apr
3.53
3.66
-0.13
May
3.52
4.07
-0.55
Jun
1.67
2.12
-0.45
Jul
1.08
1.02
0.06
Aug
0.92
0.94
-0.02
Sep
1.53
1.74
-0.21
Oct
2.35
2.73
-0.38
Nov
1.70
1.87
-0.17
Dec
1.90
1.95
-0.05
23.98
26.33
-2.35