Viewing Station: CO-BO-391 : Boulder 2.2 W
Oct 7, 2014 - Jun 20, 20252,601 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.23"
June 1-21, 2025(15 of 21 days covered by obs)
NOAA Normal
1.31"
Departure from Normal
-0.08" : 94% of Normal
Year-To-Date: 9.03"
Jan 1 to Jun 21, 2025(87 of 172 days covered by obs)
NOAA Normal
9.41"
Departure from Normal
-0.38" : 96% of Normal
Water Year-To-Date: 10.97"
Oct 1, 2024 to Jun 21, 2025(131 of 264 days covered by obs)
NOAA Normal
12.08"
Departure from Normal
-1.11" : 91% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.58
0.76
-0.18
Feb
0.78
1.01
-0.23
Mar
1.60
1.89
-0.29
Apr
2.45
2.85
-0.40
May
2.69
3.30
-0.61
Jun
1.87
2.19
-0.32
Jul
1.95
1.72
0.23
Aug
1.79
1.64
0.15
Sep
1.54
2.11
-0.57
Oct
1.22
1.65
-0.43
Nov
0.88
1.09
-0.21
Dec
0.57
0.80
-0.23
17.92
21.01
-3.09