Viewing Station: CO-BO-435 : Longmont 3.0 SW
Jul 1, 2017 - Sep 19, 20263,086 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.20"
September 1-19, 2026(19 of 19 days covered by obs)
NOAA Normal
0.89"
Departure from Normal
-0.69" : 22% of Normal
Year-To-Date: 7.51"
Jan 1 to Sep 19, 2026(256 of 262 days covered by obs)
NOAA Normal
13.35"
Departure from Normal
-5.84" : 56% of Normal
Water Year-To-Date: 8.62"
Oct 1, 2025 to Sep 19, 2026(347 of 354 days covered by obs)
NOAA Normal
15.88"
Departure from Normal
-7.26" : 54% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.54
0.45
0.09
Feb
0.63
0.53
0.10
Mar
1.44
1.24
0.20
Apr
2.23
1.88
0.35
May
2.70
2.47
0.23
Jun
1.73
1.56
0.17
Jul
1.64
1.26
0.38
Aug
1.55
1.30
0.25
Sep
1.41
1.44
-0.03
Oct
1.18
1.11
0.07
Nov
0.84
0.77
0.07
Dec
0.51
0.46
0.05
16.40
14.47
1.93