Viewing Station: CO-BO-498 : Longmont 5.0 NNW
Jun 19, 2018 - Sep 17, 2025273 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.45"
September 1-17, 2025(2 of 17 days covered by obs)
NOAA Normal
0.82"
Departure from Normal
-0.37" : 55% of Normal
Year-To-Date: 7.59"
Jan 1 to Sep 17, 2025(35 of 260 days covered by obs)
NOAA Normal
13.04"
Departure from Normal
-5.45" : 58% of Normal
Water Year-To-Date: 8.29"
Oct 1, 2024 to Sep 17, 2025(36 of 352 days covered by obs)
NOAA Normal
15.45"
Departure from Normal
-7.16" : 54% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.52
0.46
0.06
Feb
0.58
0.57
0.01
Mar
1.35
1.24
0.11
Apr
2.08
1.92
0.16
May
2.62
2.57
0.05
Jun
1.78
1.71
0.07
Jul
1.77
1.52
0.25
Aug
1.52
1.39
0.13
Sep
1.45
1.44
0.01
Oct
1.16
1.06
0.10
Nov
0.78
0.74
0.04
Dec
0.47
0.45
0.02
16.08
15.07
1.01