Viewing Station: VA-FX-111 : Herndon 2.2 NNE
Sep 9, 2020 - Jul 29, 20261,323 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.36"
July 1-29, 2026(17 of 29 days covered by obs)
NOAA Normal
3.90"
Departure from Normal
-1.54" : 60% of Normal
Year-To-Date: 10.44"
Jan 1 to Jul 29, 2026(121 of 210 days covered by obs)
NOAA Normal
24.81"
Departure from Normal
-14.37" : 42% of Normal
Water Year-To-Date: 14.48"
Oct 1, 2025 to Jul 29, 2026(186 of 302 days covered by obs)
NOAA Normal
34.94"
Departure from Normal
-20.46" : 41% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.96
3.05
-0.09
Feb
2.55
2.64
-0.09
Mar
3.58
3.78
-0.20
Apr
3.31
3.40
-0.09
May
4.29
4.48
-0.19
Jun
4.22
4.35
-0.13
Jul
4.17
4.30
-0.13
Aug
3.48
3.70
-0.22
Sep
4.04
4.33
-0.29
Oct
3.64
3.85
-0.21
Nov
3.05
3.21
-0.16
Dec
3.44
3.57
-0.13
42.73
44.66
-1.93