MEDIAN FLOW RATE · 1 YEAR
61cfs 48.7% vs avg
Optimal band: 75–101 cfs
PERIOD HIGH
668cfs
PERIOD LOW
58cfs
RUNNABLE
39%
last 1 year in band
Precipitation History
Precipitation · YTD
DryDrier than normal
2026 to date
15.7in
-19% vs normal
15.7 in of precipitation so far this year, 19% below the 30-year normal of 19.5 in for this point in the season.
YTD Total
15.7in
This year so far
Normal to Date
19.5in
30-yr average
Typical Range
15.1–24.4in
10th–90th pct YTD
Departure
-19%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 3.03" · normal 2.80" (1.3–4.6)
Feb: 1.71" · normal 2.57" (1.3–4.4)
Mar: 2.52" · normal 3.51" (2.1–4.9)
Apr: 1.59" · normal 3.18" (1.6–4.7)
May: 3.97" · normal 3.56" (1.6–5.7)
Jun: 1.90" · normal 3.07" (1.4–4.5)
Jul: 0.99" (so far)· normal 3.37" (1.7–5.2)
Aug: normal 2.77" (1.3–4.9)
Sep: normal 3.90" (0.9–8.3)
Oct: normal 2.92" (0.9–5.0)
Nov: normal 2.75" (1.2–4.6)
Dec: normal 3.06" (1.9–5.0)
Baseline 1991–2020 · Source: Open-Meteo03:55 PM
Your History · SOUTH RIVER AT HARRISTON, VA
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Station Location
38.2187, -78.8367Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-07 00:00 UTC
Site #01627500·USGS
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