Viewing Station: VA-FX-114 : Herndon 2.9 S
Nov 8, 2020 - Sep 22, 20261,792 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.19"
September 1-22, 2026(22 of 22 days covered by obs)
NOAA Normal
2.98"
Departure from Normal
0.21" : 107% of Normal
Year-To-Date: 34.15"
Jan 1 to Sep 22, 2026(264 of 265 days covered by obs)
NOAA Normal
31.53"
Departure from Normal
2.62" : 108% of Normal
Water Year-To-Date: 37.93"
Oct 1, 2025 to Sep 22, 2026(356 of 357 days covered by obs)
NOAA Normal
41.71"
Departure from Normal
-3.78" : 91% 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