Viewing Station: CO-DG-245 : Castle Rock 0.5 NNW
Feb 4, 2015 - Sep 20, 20263,953 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.57"
September 1-20, 2026(20 of 20 days covered by obs)
NOAA Normal
0.90"
Departure from Normal
-0.33" : 63% of Normal
Year-To-Date: 9.39"
Jan 1 to Sep 20, 2026(261 of 263 days covered by obs)
NOAA Normal
14.52"
Departure from Normal
-5.13" : 65% of Normal
Water Year-To-Date: 10.26"
Oct 1, 2025 to Sep 20, 2026(353 of 355 days covered by obs)
NOAA Normal
17.03"
Departure from Normal
-6.77" : 60% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.62
0.60
0.02
Feb
0.70
0.65
0.05
Mar
1.51
1.54
-0.03
Apr
2.20
2.28
-0.08
May
2.20
2.19
0.01
Jun
1.91
2.10
-0.19
Jul
2.32
2.32
0.00
Aug
2.16
2.33
-0.17
Sep
1.35
1.41
-0.06
Oct
1.06
1.01
0.05
Nov
0.80
0.75
0.05
Dec
0.65
0.63
0.02
17.48
17.81
-0.33