Viewing Station: CO-BO-482 : Boulder 4.5 W
Jul 8, 2017 - Sep 6, 20252,292 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.02"
September 1-8, 2025(6 of 8 days covered by obs)
NOAA Normal
0.41"
Departure from Normal
-0.39" : 5% of Normal
Year-To-Date: 13.89"
Jan 1 to Sep 8, 2025(249 of 251 days covered by obs)
NOAA Normal
13.90"
Departure from Normal
-0.01" : 100% of Normal
Water Year-To-Date: 17.09"
Oct 1, 2024 to Sep 8, 2025(341 of 343 days covered by obs)
NOAA Normal
16.35"
Departure from Normal
0.74" : 105% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.55
0.78
-0.23
Feb
0.74
1.03
-0.29
Mar
1.43
1.95
-0.52
Apr
2.28
2.89
-0.61
May
2.66
3.27
-0.61
Jun
1.85
2.15
-0.30
Jul
2.10
1.83
0.27
Aug
1.88
1.86
0.02
Sep
1.54
2.09
-0.55
Oct
1.12
1.66
-0.54
Nov
0.81
1.04
-0.23
Dec
0.52
0.81
-0.29
17.48
21.36
-3.88