Viewing Station: CO-BO-401 : Boulder 7.4 NNW
Apr 27, 2015 - Sep 7, 20251,523 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.00"
September 1-8, 2025(7 of 8 days covered by obs)
NOAA Normal
0.39"
Departure from Normal
-0.39" : 0% of Normal
Year-To-Date: 13.07"
Jan 1 to Sep 8, 2025(118 of 251 days covered by obs)
NOAA Normal
14.01"
Departure from Normal
-0.94" : 93% of Normal
Water Year-To-Date: 15.80"
Oct 1, 2024 to Sep 8, 2025(132 of 343 days covered by obs)
NOAA Normal
16.70"
Departure from Normal
-0.90" : 95% 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