Viewing Station: CO-BO-522 : Boulder 2.3 SSE
Jul 13, 2019 - Dec 11, 20252,246 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.56"
December 1-11, 2025(11 of 11 days covered by obs)
NOAA Normal
0.23"
Departure from Normal
0.33" : 239% of Normal
Year-To-Date: 16.09"
Jan 1 to Dec 11, 2025(345 of 345 days covered by obs)
NOAA Normal
17.74"
Departure from Normal
-1.65" : 91% of Normal
Water Year-To-Date: 1.14"
Oct 1, 2025 to Dec 11, 2025(73 of 72 days covered by obs)
NOAA Normal
2.58"
Departure from Normal
-1.44" : 44% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.66
0.66
0.00
Feb
0.81
0.79
0.02
Mar
1.72
1.71
0.01
Apr
2.56
2.56
0.00
May
2.74
2.87
-0.13
Jun
1.80
1.76
0.04
Jul
1.73
1.67
0.06
Aug
1.70
1.45
0.25
Sep
1.44
2.00
-0.56
Oct
1.32
1.41
-0.09
Nov
1.03
0.97
0.06
Dec
0.66
0.65
0.01
18.17
18.50
-0.33