Viewing Station: VA-FX-114 : Herndon 2.9 S
Nov 8, 2020 - Aug 20, 20251,481 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.87"
August 1-20, 2025(20 of 20 days covered by obs)
NOAA Normal
2.25"
Departure from Normal
0.62" : 127% of Normal
Year-To-Date: 26.70"
Jan 1 to Aug 20, 2025(228 of 232 days covered by obs)
NOAA Normal
27.31"
Departure from Normal
-0.61" : 98% of Normal
Water Year-To-Date: 32.39"
Oct 1, 2024 to Aug 20, 2025(319 of 324 days covered by obs)
NOAA Normal
37.49"
Departure from Normal
-5.10" : 86% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.98
3.07
-0.09
Feb
2.55
2.64
-0.09
Mar
3.54
3.79
-0.25
Apr
3.33
3.39
-0.06
May
4.27
4.53
-0.26
Jun
4.17
4.38
-0.21
Jul
4.22
4.31
-0.09
Aug
3.49
3.66
-0.17
Sep
4.06
4.28
-0.22
Oct
3.69
3.82
-0.13
Nov
3.06
3.20
-0.14
Dec
3.43
3.53
-0.10
42.79
44.60
-1.81