Viewing Station: VA-CS-66 : Bon Air 0.4 W
Jul 14, 2023 - Sep 18, 2025149 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.46"
September 1-18, 2025(18 of 18 days covered by obs)
NOAA Normal
2.74"
Departure from Normal
-0.28" : 90% of Normal
Year-To-Date: 30.99"
Jan 1 to Sep 18, 2025(90 of 261 days covered by obs)
NOAA Normal
33.70"
Departure from Normal
-2.71" : 92% of Normal
Water Year-To-Date: 35.98"
Oct 1, 2024 to Sep 18, 2025(139 of 353 days covered by obs)
NOAA Normal
44.34"
Departure from Normal
-8.36" : 81% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.44
3.36
0.08
Feb
2.78
2.75
0.03
Mar
3.96
3.88
0.08
Apr
3.44
3.39
0.05
May
4.20
4.11
0.09
Jun
4.27
4.14
0.13
Jul
4.44
4.41
0.03
Aug
4.43
4.45
-0.02
Sep
4.56
4.40
0.16
Oct
3.66
3.62
0.04
Nov
3.31
3.25
0.06
Dec
3.67
3.68
-0.01
46.16
45.44
0.72