Viewing Station: CO-CH-38 : Arapahoe 4.3 SW
Apr 7, 2016 - Sep 30, 20261,156 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.79"
September 1-30, 2026(12 of 30 days covered by obs)
NOAA Normal
1.13"
Departure from Normal
3.66" : 424% of Normal
Year-To-Date: 14.75"
Jan 1 to Sep 30, 2026(79 of 273 days covered by obs)
NOAA Normal
15.03"
Departure from Normal
-0.28" : 98% of Normal
Water Year-To-Date: 16.10"
Oct 1, 2025 to Sep 30, 2026(90 of 365 days covered by obs)
NOAA Normal
17.08"
Departure from Normal
-0.98" : 94% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.29
0.28
0.01
Feb
0.38
0.39
-0.01
Mar
0.78
0.75
0.03
Apr
1.50
1.46
0.04
May
2.34
2.19
0.15
Jun
2.52
2.41
0.11
Jul
3.31
3.18
0.13
Aug
2.78
2.72
0.06
Sep
1.13
1.14
-0.01
Oct
1.22
1.23
-0.01
Nov
0.46
0.38
0.08
Dec
0.37
0.36
0.01
17.08
16.49
0.59