Viewing Station: CO-BO-522 : Boulder 2.3 SSE
Jul 13, 2019 - Sep 6, 20252,153 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
0.38"
Departure from Normal
-0.36" : 5% of Normal
Year-To-Date: 12.47"
Jan 1 to Sep 8, 2025(248 of 251 days covered by obs)
NOAA Normal
14.10"
Departure from Normal
-1.63" : 88% of Normal
Water Year-To-Date: 15.31"
Oct 1, 2024 to Sep 8, 2025(341 of 343 days covered by obs)
NOAA Normal
17.11"
Departure from Normal
-1.80" : 89% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.66
0.66
0.00
Feb
0.81
0.79
0.02
Mar
1.72
1.71
0.01
Apr
2.56
2.56
0.00
May
2.74
2.87
-0.13
Jun
1.80
1.76
0.04
Jul
1.73
1.67
0.06
Aug
1.70
1.45
0.25
Sep
1.44
2.00
-0.56
Oct
1.32
1.41
-0.09
Nov
1.03
0.97
0.06
Dec
0.66
0.65
0.01
18.17
18.50
-0.33