Viewing Station: CO-BO-464 : Boulder 3.2 S
Jul 3, 2017 - Sep 17, 20251,520 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 1.28"
September 1-17, 2025(4 of 17 days covered by obs)
NOAA Normal
0.82"
Departure from Normal
0.46" : 157% of Normal
Year-To-Date: 12.68"
Jan 1 to Sep 17, 2025(45 of 260 days covered by obs)
NOAA Normal
14.54"
Departure from Normal
-1.86" : 87% of Normal
Water Year-To-Date: 15.35"
Oct 1, 2024 to Sep 17, 2025(53 of 352 days covered by obs)
NOAA Normal
17.55"
Departure from Normal
-2.20" : 87% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.66
0.72
-0.06
Feb
0.81
0.86
-0.05
Mar
1.72
1.74
-0.02
Apr
2.56
2.73
-0.17
May
2.74
3.01
-0.27
Jun
1.80
1.86
-0.06
Jul
1.73
1.74
-0.01
Aug
1.70
1.62
0.08
Sep
1.44
2.00
-0.56
Oct
1.32
1.50
-0.18
Nov
1.03
1.04
-0.01
Dec
0.66
0.72
-0.06
18.17
19.54
-1.37