Viewing Station: CO-BO-220 : Boulder 4.7 ENE
May 26, 2006 - Dec 30, 20256,697 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.75"
December 1-30, 2025(30 of 30 days covered by obs)
NOAA Normal
0.56"
Departure from Normal
0.19" : 134% of Normal
Year-To-Date: 16.15"
Jan 1 to Dec 30, 2025(360 of 364 days covered by obs)
NOAA Normal
17.52"
Departure from Normal
-1.37" : 92% of Normal
Water Year-To-Date: 1.33"
Oct 1, 2025 to Dec 30, 2025(91 of 91 days covered by obs)
NOAA Normal
2.74"
Departure from Normal
-1.41" : 49% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.60
0.54
0.06
Feb
0.71
0.66
0.05
Mar
1.58
1.53
0.05
Apr
2.41
2.21
0.20
May
2.82
2.49
0.33
Jun
1.84
1.60
0.24
Jul
1.70
1.56
0.14
Aug
1.70
1.32
0.38
Sep
1.42
1.66
-0.24
Oct
1.26
1.20
0.06
Nov
0.92
0.83
0.09
Dec
0.58
0.58
0.00
17.54
16.18
1.36