Viewing Station: CO-BO-391 : Boulder 2.2 W
Oct 7, 2014 - Dec 13, 20252,663 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.62"
December 1-15, 2025(6 of 15 days covered by obs)
NOAA Normal
0.28"
Departure from Normal
0.34" : 225% of Normal
Year-To-Date: 12.73"
Jan 1 to Dec 15, 2025(149 of 349 days covered by obs)
NOAA Normal
17.63"
Departure from Normal
-4.90" : 72% of Normal
Water Year-To-Date: 1.28"
Oct 1, 2025 to Dec 15, 2025(31 of 76 days covered by obs)
NOAA Normal
2.38"
Departure from Normal
-1.10" : 54% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.58
0.76
-0.18
Feb
0.78
1.01
-0.23
Mar
1.60
1.89
-0.29
Apr
2.45
2.85
-0.40
May
2.69
3.30
-0.61
Jun
1.87
2.19
-0.32
Jul
1.95
1.72
0.23
Aug
1.79
1.64
0.15
Sep
1.54
2.11
-0.57
Oct
1.22
1.65
-0.43
Nov
0.88
1.09
-0.21
Dec
0.57
0.80
-0.23
17.92
21.01
-3.09