Viewing Station: CO-BO-282 : Boulder 4.4 S
Jul 5, 2010 - May 7, 20262,931 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.82"
May 1-9, 2026(3 of 9 days covered by obs)
NOAA Normal
0.80"
Departure from Normal
1.02" : 229% of Normal
Year-To-Date: 3.53"
Jan 1 to May 9, 2026(23 of 129 days covered by obs)
NOAA Normal
6.55"
Departure from Normal
-3.02" : 54% of Normal
Water Year-To-Date: 4.80"
Oct 1, 2025 to May 9, 2026(28 of 221 days covered by obs)
NOAA Normal
9.56"
Departure from Normal
-4.76" : 50% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.66
0.66
0.00
Feb
0.81
0.84
-0.03
Mar
1.72
1.77
-0.05
Apr
2.56
2.67
-0.11
May
2.74
2.94
-0.20
Jun
1.80
1.80
0.00
Jul
1.73
1.69
0.04
Aug
1.70
1.66
0.04
Sep
1.44
1.97
-0.53
Oct
1.32
1.46
-0.14
Nov
1.03
0.98
0.05
Dec
0.66
0.71
-0.05
18.17
19.15
-0.98