Viewing Station: CO-BO-526 : Boulder 2.5 SSE
Jun 26, 2020 - Sep 17, 20251,348 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.08"
September 1-17, 2025(17 of 17 days covered by obs)
NOAA Normal
0.82"
Departure from Normal
0.26" : 132% of Normal
Year-To-Date: 14.59"
Jan 1 to Sep 17, 2025(245 of 260 days covered by obs)
NOAA Normal
14.54"
Departure from Normal
0.05" : 100% of Normal
Water Year-To-Date: 17.58"
Oct 1, 2024 to Sep 17, 2025(335 of 352 days covered by obs)
NOAA Normal
17.55"
Departure from Normal
0.03" : 100% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.66
0.70
-0.04
Feb
0.81
0.81
0.00
Mar
1.72
1.75
-0.03
Apr
2.56
2.66
-0.10
May
2.74
2.95
-0.21
Jun
1.80
1.83
-0.03
Jul
1.73
1.75
-0.02
Aug
1.70
1.54
0.16
Sep
1.44
2.06
-0.62
Oct
1.32
1.48
-0.16
Nov
1.03
1.01
0.02
Dec
0.66
0.69
-0.03
18.17
19.23
-1.06