Viewing Station: CO-MT-58 : Delta 5.9 S
Mar 22, 2020 - Sep 20, 20261,728 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.34"
September 1-20, 2026(8 of 20 days covered by obs)
NOAA Normal
0.69"
Departure from Normal
0.65" : 193% of Normal
Year-To-Date: 4.03"
Jan 1 to Sep 20, 2026(126 of 263 days covered by obs)
NOAA Normal
6.39"
Departure from Normal
-2.36" : 63% of Normal
Water Year-To-Date: 6.75"
Oct 1, 2025 to Sep 20, 2026(207 of 355 days covered by obs)
NOAA Normal
8.45"
Departure from Normal
-1.70" : 80% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.64
0.44
0.20
Feb
0.58
0.50
0.08
Mar
0.63
0.57
0.06
Apr
0.68
0.66
0.02
May
0.78
0.80
-0.02
Jun
0.45
0.40
0.05
Jul
0.95
0.89
0.06
Aug
0.99
0.99
0.00
Sep
1.04
1.14
-0.10
Oct
0.90
0.95
-0.05
Nov
0.57
0.54
0.03
Dec
0.59
0.47
0.12
8.80
8.35
0.45