Viewing Station: CO-BO-563 : Boulder 3.7 WNW
Mar 15, 2022 - Sep 17, 20251,209 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.44"
September 1-17, 2025(16 of 17 days covered by obs)
NOAA Normal
0.87"
Departure from Normal
-0.43" : 51% of Normal
Year-To-Date: 14.47"
Jan 1 to Sep 17, 2025(221 of 260 days covered by obs)
NOAA Normal
14.53"
Departure from Normal
-0.06" : 100% of Normal
Water Year-To-Date: 18.39"
Oct 1, 2024 to Sep 17, 2025(313 of 352 days covered by obs)
NOAA Normal
17.14"
Departure from Normal
1.25" : 107% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.57
0.80
-0.23
Feb
0.76
1.07
-0.31
Mar
1.56
1.95
-0.39
Apr
2.36
2.88
-0.52
May
2.69
3.40
-0.71
Jun
1.88
2.23
-0.35
Jul
2.00
1.84
0.16
Aug
1.84
1.82
0.02
Sep
1.53
2.13
-0.60
Oct
1.18
1.64
-0.46
Nov
0.86
1.04
-0.18
Dec
0.57
0.82
-0.25
17.80
21.62
-3.82