Viewing Station: CO-BO-613 : Boulder 7.4 NNW
May 1, 2025 - May 18, 2026218 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.79"
May 1-18, 2026(6 of 18 days covered by obs)
NOAA Normal
1.55"
Departure from Normal
-0.76" : 51% of Normal
Year-To-Date: 2.57"
Jan 1 to May 18, 2026(104 of 138 days covered by obs)
NOAA Normal
6.88"
Departure from Normal
-4.31" : 37% of Normal
Water Year-To-Date: 4.10"
Oct 1, 2025 to May 18, 2026(165 of 230 days covered by obs)
NOAA Normal
9.48"
Departure from Normal
-5.38" : 43% 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