Viewing Station: VA-FX-111 : Herndon 2.2 NNE
Sep 9, 2020 - Jul 25, 20251,175 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.68"
July 1-27, 2025(15 of 27 days covered by obs)
NOAA Normal
3.63"
Departure from Normal
-0.95" : 74% of Normal
Year-To-Date: 19.37"
Jan 1 to Jul 27, 2025(155 of 208 days covered by obs)
NOAA Normal
24.54"
Departure from Normal
-5.17" : 79% of Normal
Water Year-To-Date: 23.78"
Oct 1, 2024 to Jul 27, 2025(186 of 300 days covered by obs)
NOAA Normal
34.67"
Departure from Normal
-10.89" : 69% 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