Viewing Station: CO-BO-282 : Boulder 4.4 S
Jul 5, 2010 - Sep 17, 20252,900 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.78"
September 1-17, 2025(4 of 17 days covered by obs)
NOAA Normal
0.82"
Departure from Normal
-0.04" : 96% of Normal
Year-To-Date: 13.90"
Jan 1 to Sep 17, 2025(98 of 260 days covered by obs)
NOAA Normal
14.54"
Departure from Normal
-0.64" : 96% of Normal
Water Year-To-Date: 16.08"
Oct 1, 2024 to Sep 17, 2025(122 of 352 days covered by obs)
NOAA Normal
17.55"
Departure from Normal
-1.47" : 92% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.66
0.66
0.00
Feb
0.81
0.84
-0.03
Mar
1.72
1.77
-0.05
Apr
2.56
2.67
-0.11
May
2.74
2.94
-0.20
Jun
1.80
1.80
0.00
Jul
1.73
1.69
0.04
Aug
1.70
1.66
0.04
Sep
1.44
1.97
-0.53
Oct
1.32
1.46
-0.14
Nov
1.03
0.98
0.05
Dec
0.66
0.71
-0.05
18.17
19.15
-0.98