Viewing Station: VA-PW-19 : Manassas 2.5 NNW
Jun 1, 2018 - Sep 11, 20261,586 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.25"
September 1-11, 2026(6 of 11 days covered by obs)
NOAA Normal
1.45"
Departure from Normal
-0.20" : 86% of Normal
Year-To-Date: 33.84"
Jan 1 to Sep 11, 2026(133 of 254 days covered by obs)
NOAA Normal
28.90"
Departure from Normal
4.94" : 117% of Normal
Water Year-To-Date: 38.57"
Oct 1, 2025 to Sep 11, 2026(165 of 346 days covered by obs)
NOAA Normal
38.75"
Departure from Normal
-0.18" : 100% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.82
2.97
-0.15
Feb
2.44
2.55
-0.11
Mar
3.28
3.66
-0.38
Apr
3.18
3.33
-0.15
May
4.09
4.43
-0.34
Jun
4.02
4.18
-0.16
Jul
4.16
3.98
0.18
Aug
3.46
3.57
-0.11
Sep
3.96
4.19
-0.23
Oct
3.63
3.70
-0.07
Nov
2.91
3.13
-0.22
Dec
3.31
3.45
-0.14
41.26
43.14
-1.88