Viewing Station: CO-BO-401 : Boulder 7.4 NNW
Apr 27, 2015 - Jul 28, 20261,804 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.11"
July 1-28, 2026(25 of 28 days covered by obs)
NOAA Normal
1.73"
Departure from Normal
-0.62" : 64% of Normal
Year-To-Date: 7.94"
Jan 1 to Jul 28, 2026(193 of 209 days covered by obs)
NOAA Normal
11.69"
Departure from Normal
-3.75" : 68% of Normal
Water Year-To-Date: 9.56"
Oct 1, 2025 to Jul 28, 2026(276 of 301 days covered by obs)
NOAA Normal
14.38"
Departure from Normal
-4.82" : 66% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.59
0.73
-0.14
Feb
0.71
0.88
-0.17
Mar
1.53
1.72
-0.19
Apr
2.38
2.75
-0.37
May
2.82
3.17
-0.35
Jun
1.93
2.20
-0.27
Jul
1.92
1.81
0.11
Aug
1.74
1.65
0.09
Sep
1.48
2.11
-0.63
Oct
1.25
1.54
-0.29
Nov
0.89
1.01
-0.12
Dec
0.55
0.70
-0.15
17.79
20.27
-2.48