Viewing Station: CO-BO-462 : Boulder 0.8 NE
Jun 8, 2017 - Sep 8, 20263,067 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.15"
September 1-8, 2026(7 of 8 days covered by obs)
NOAA Normal
0.38"
Departure from Normal
-0.23" : 39% of Normal
Year-To-Date: 8.21"
Jan 1 to Sep 8, 2026(228 of 251 days covered by obs)
NOAA Normal
13.90"
Departure from Normal
-5.69" : 59% of Normal
Water Year-To-Date: 9.41"
Oct 1, 2025 to Sep 8, 2026(316 of 343 days covered by obs)
NOAA Normal
16.86"
Departure from Normal
-7.45" : 56% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.64
0.61
0.03
Feb
0.78
0.75
0.03
Mar
1.68
1.61
0.07
Apr
2.49
2.49
0.00
May
2.73
2.81
-0.08
Jun
1.82
1.78
0.04
Jul
1.71
1.61
0.10
Aug
1.67
1.51
0.16
Sep
1.44
1.97
-0.53
Oct
1.32
1.31
0.01
Nov
1.00
0.91
0.09
Dec
0.64
0.61
0.03
17.92
17.97
-0.05