Viewing Station: CO-BO-507 : Longmont 3.3 SW
Aug 26, 2018 - Sep 13, 20262,923 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.07"
September 1-13, 2026(13 of 13 days covered by obs)
NOAA Normal
0.61"
Departure from Normal
-0.54" : 11% of Normal
Year-To-Date: 7.57"
Jan 1 to Sep 13, 2026(252 of 256 days covered by obs)
NOAA Normal
13.07"
Departure from Normal
-5.50" : 58% of Normal
Water Year-To-Date: 8.88"
Oct 1, 2025 to Sep 13, 2026(343 of 348 days covered by obs)
NOAA Normal
15.60"
Departure from Normal
-6.72" : 57% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.54
0.46
0.08
Feb
0.63
0.52
0.11
Mar
1.44
1.27
0.17
Apr
2.23
1.90
0.33
May
2.70
2.47
0.23
Jun
1.73
1.57
0.16
Jul
1.64
1.27
0.37
Aug
1.55
1.30
0.25
Sep
1.41
1.45
-0.04
Oct
1.18
1.12
0.06
Nov
0.84
0.77
0.07
Dec
0.51
0.47
0.04
16.40
14.57
1.83