Viewing Station: CO-DG-205 : Castle Rock 3.7 W
Jun 9, 2013 - Sep 19, 20264,731 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.45"
September 1-20, 2026(18 of 20 days covered by obs)
NOAA Normal
0.87"
Departure from Normal
-0.42" : 52% of Normal
Year-To-Date: 7.65"
Jan 1 to Sep 20, 2026(260 of 263 days covered by obs)
NOAA Normal
14.23"
Departure from Normal
-6.58" : 54% of Normal
Water Year-To-Date: 8.42"
Oct 1, 2025 to Sep 20, 2026(350 of 355 days covered by obs)
NOAA Normal
16.71"
Departure from Normal
-8.29" : 50% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.64
0.58
0.06
Feb
0.67
0.62
0.05
Mar
1.43
1.40
0.03
Apr
2.22
2.35
-0.13
May
2.18
2.14
0.04
Jun
1.78
1.99
-0.21
Jul
2.32
2.57
-0.25
Aug
2.12
2.13
-0.01
Sep
1.31
1.38
-0.07
Oct
1.05
1.12
-0.07
Nov
0.78
0.80
-0.02
Dec
0.65
0.65
0.00
17.15
17.73
-0.58