MEDIAN FLOW RATE · 30 DAY
38cfs 85.8% vs avg
Optimal band: 25–33 cfs
PERIOD HIGH
63cfs
PERIOD LOW
18cfs
RUNNABLE
58%
last 30 day in band
Precipitation History
Precipitation · YTD
DryDrier than normal
2026 to date
17.5in
-19% vs normal
17.46 in of precipitation so far this year, 19% below the 30-year normal of 21.44 in for this point in the season.
YTD Total
17.5in
This year so far
Normal to Date
21.4in
30-yr average
Typical Range
17.4–27.7in
10th–90th pct YTD
Departure
-19%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 3.15" · normal 3.27" (1.9–5.5)
Feb: 2.69" · normal 3.01" (1.3–5.5)
Mar: 1.68" · normal 3.98" (2.4–5.8)
Apr: 1.34" · normal 3.22" (1.6–4.5)
May: 4.74" · normal 3.35" (1.6–5.0)
Jun: 3.16" · normal 3.70" (1.6–5.7)
Jul: 0.71" (so far)· normal 4.08" (1.8–6.1)
Aug: normal 3.99" (1.7–6.8)
Sep: normal 4.29" (0.8–7.8)
Oct: normal 3.72" (1.2–5.8)
Nov: normal 3.19" (1.1–5.8)
Dec: normal 3.48" (2.0–4.9)
Baseline 1991–2020 · Source: Open-Meteo10:03 AM
Your History · SOUTH ANNA RIVER NEAR ASHLAND, VA
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Station Location
37.7968, -77.5489Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-07 00:00 UTC
Site #01672500·USGS
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