Viewing Station: CO-BO-4 : Boulder 2.9 S
Jun 1, 2001 - May 5, 20269,214 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.42"
May 1-5, 2026(5 of 5 days covered by obs)
NOAA Normal
0.45"
Departure from Normal
-0.03" : 93% of Normal
Year-To-Date: 2.85"
Jan 1 to May 5, 2026(125 of 125 days covered by obs)
NOAA Normal
6.63"
Departure from Normal
-3.78" : 43% of Normal
Water Year-To-Date: 4.28"
Oct 1, 2025 to May 5, 2026(217 of 217 days covered by obs)
NOAA Normal
9.77"
Departure from Normal
-5.49" : 44% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.71
0.74
-0.03
Feb
0.91
0.90
0.01
Mar
1.84
1.85
-0.01
Apr
2.72
2.79
-0.07
May
2.80
3.06
-0.26
Jun
1.88
1.92
-0.04
Jul
1.84
1.73
0.11
Aug
1.73
1.65
0.08
Sep
1.53
2.05
-0.52
Oct
1.37
1.54
-0.17
Nov
1.06
1.04
0.02
Dec
0.71
0.76
-0.05
19.10
20.03
-0.93