Viewing Station: CO-BO-613 : Boulder 7.4 NNW
May 1, 2025 - Sep 3, 2026285 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.06"
September 1-3, 2026(3 of 3 days covered by obs)
NOAA Normal
0.15"
Departure from Normal
-0.09" : 39% of Normal
Year-To-Date: 5.05"
Jan 1 to Sep 3, 2026(171 of 246 days covered by obs)
NOAA Normal
13.87"
Departure from Normal
-8.82" : 36% of Normal
Water Year-To-Date: 6.58"
Oct 1, 2025 to Sep 3, 2026(232 of 338 days covered by obs)
NOAA Normal
16.47"
Departure from Normal
-9.89" : 40% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.56
0.73
-0.17
Feb
0.75
0.88
-0.13
Mar
1.58
1.72
-0.14
Apr
2.44
2.75
-0.31
May
2.67
3.17
-0.50
Jun
1.87
2.20
-0.33
Jul
2.02
1.81
0.21
Aug
1.83
1.65
0.18
Sep
1.52
2.11
-0.59
Oct
1.17
1.54
-0.37
Nov
0.85
1.01
-0.16
Dec
0.58
0.70
-0.12
17.84
20.27
-2.43