Viewing Station: CO-BO-72 : Boulder 1.3 NW
Sep 9, 2002 - Sep 6, 20258,409 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.02"
September 1-8, 2025(5 of 8 days covered by obs)
NOAA Normal
0.41"
Departure from Normal
-0.39" : 5% of Normal
Year-To-Date: 13.11"
Jan 1 to Sep 8, 2025(248 of 251 days covered by obs)
NOAA Normal
14.27"
Departure from Normal
-1.16" : 92% of Normal
Water Year-To-Date: 16.13"
Oct 1, 2024 to Sep 8, 2025(340 of 343 days covered by obs)
NOAA Normal
17.28"
Departure from Normal
-1.15" : 93% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.65
0.67
-0.02
Feb
0.85
0.80
0.05
Mar
1.74
1.77
-0.03
Apr
2.56
2.69
-0.13
May
2.76
2.92
-0.16
Jun
1.86
1.93
-0.07
Jul
1.77
1.65
0.12
Aug
1.67
1.52
0.15
Sep
1.53
2.02
-0.49
Oct
1.36
1.47
-0.11
Nov
1.00
0.98
0.02
Dec
0.65
0.67
-0.02
18.40
19.09
-0.69