Viewing Station: CO-DG-243 : Castle Rock 3.3 SW
Jan 1, 2015 - Sep 20, 20264,139 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.63"
September 1-21, 2026(20 of 21 days covered by obs)
NOAA Normal
0.93"
Departure from Normal
-0.30" : 68% of Normal
Year-To-Date: 10.62"
Jan 1 to Sep 21, 2026(262 of 264 days covered by obs)
NOAA Normal
14.42"
Departure from Normal
-3.80" : 74% of Normal
Water Year-To-Date: 11.53"
Oct 1, 2025 to Sep 21, 2026(354 of 356 days covered by obs)
NOAA Normal
16.93"
Departure from Normal
-5.40" : 68% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.65
0.68
-0.03
Feb
0.70
0.70
0.00
Mar
1.45
1.56
-0.11
Apr
2.22
2.60
-0.38
May
2.17
2.29
-0.12
Jun
1.84
2.00
-0.16
Jul
2.33
2.62
-0.29
Aug
2.13
2.63
-0.50
Sep
1.33
1.51
-0.18
Oct
1.06
1.28
-0.22
Nov
0.79
0.95
-0.16
Dec
0.66
0.78
-0.12
17.33
19.60
-2.27