MEDIAN FLOW RATE · 30 DAY
3cfs 77.6% vs avg
Optimal band: 3–3 cfs
PERIOD HIGH
3cfs
PERIOD LOW
1cfs
RUNNABLE
50%
last 30 day in band
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
22.8in
≈ normal
22.78 in of precipitation so far this year — about average for this point in the season (normal 21.66 in).
YTD Total
22.8in
This year so far
Normal to Date
21.7in
30-yr average
Typical Range
17.2–28.3in
10th–90th pct YTD
Departure
+5%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 2.73" · normal 3.09" (1.8–4.8)
Feb: 2.16" · normal 2.79" (1.7–4.6)
Mar: 3.93" · normal 3.82" (1.7–5.2)
Apr: 2.39" · normal 3.54" (1.9–4.9)
May: 5.53" · normal 3.86" (1.9–6.3)
Jun: 3.76" · normal 3.63" (1.7–6.3)
Jul: 2.28" (so far)· normal 4.07" (2.0–7.4)
Aug: normal 3.47" (2.0–4.8)
Sep: normal 4.74" (1.5–8.5)
Oct: normal 3.50" (1.1–5.3)
Nov: normal 2.99" (1.4–4.7)
Dec: normal 3.54" (1.8–5.5)
Baseline 1991–2020 · Source: Open-Meteo10:01 AM
Your History · SOPER BRANCH AT HYATTSTOWN, MD
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Station Location
39.2753, -77.3037Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-07 00:00 UTC
Site #01643395·USGS
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