Viewing Station: CO-BO-590 : Boulder 3.0 S
Apr 26, 2023 - Sep 15, 2025126 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.98"
September 1-15, 2025(13 of 15 days covered by obs)
NOAA Normal
0.72"
Departure from Normal
0.26" : 136% of Normal
Year-To-Date: 8.27"
Jan 1 to Sep 15, 2025(92 of 258 days covered by obs)
NOAA Normal
14.44"
Departure from Normal
-6.17" : 57% of Normal
Water Year-To-Date: 8.27"
Oct 1, 2024 to Sep 15, 2025(92 of 350 days covered by obs)
NOAA Normal
17.45"
Departure from Normal
-9.18" : 47% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.66
0.70
-0.04
Feb
0.81
0.83
-0.02
Mar
1.72
1.72
0.00
Apr
2.56
2.67
-0.11
May
2.74
2.95
-0.21
Jun
1.80
1.83
-0.03
Jul
1.73
1.72
0.01
Aug
1.70
1.61
0.09
Sep
1.44
2.03
-0.59
Oct
1.32
1.48
-0.16
Nov
1.03
1.02
0.01
Dec
0.66
0.71
-0.05
18.17
19.27
-1.10