Viewing Station: CO-BO-572 : Boulder 3.0 SSW
Jul 30, 2022 - Sep 19, 20261,256 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.28"
September 1-20, 2026(18 of 20 days covered by obs)
NOAA Normal
1.02"
Departure from Normal
-0.74" : 27% of Normal
Year-To-Date: 8.36"
Jan 1 to Sep 20, 2026(185 of 263 days covered by obs)
NOAA Normal
15.45"
Departure from Normal
-7.09" : 54% of Normal
Water Year-To-Date: 10.10"
Oct 1, 2025 to Sep 20, 2026(275 of 355 days covered by obs)
NOAA Normal
18.59"
Departure from Normal
-8.49" : 54% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.71
0.79
-0.08
Feb
0.91
0.99
-0.08
Mar
1.84
1.93
-0.09
Apr
2.72
2.92
-0.20
May
2.80
3.24
-0.44
Jun
1.88
1.96
-0.08
Jul
1.84
1.78
0.06
Aug
1.73
1.75
-0.02
Sep
1.53
2.03
-0.50
Oct
1.37
1.58
-0.21
Nov
1.06
1.12
-0.06
Dec
0.71
0.79
-0.08
19.10
20.88
-1.78