Viewing Station: CO-CH-38 : Arapahoe 4.3 SW
Apr 7, 2016 - Sep 17, 20251,063 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.14"
September 1-17, 2025(4 of 17 days covered by obs)
NOAA Normal
0.64"
Departure from Normal
1.50" : 334% of Normal
Year-To-Date: 19.81"
Jan 1 to Sep 17, 2025(71 of 260 days covered by obs)
NOAA Normal
14.54"
Departure from Normal
5.27" : 136% of Normal
Water Year-To-Date: 24.44"
Oct 1, 2024 to Sep 17, 2025(82 of 352 days covered by obs)
NOAA Normal
16.59"
Departure from Normal
7.85" : 147% 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