MEDIAN FLOW RATE · 1 YEAR
286cfs 47.3% vs avg
Optimal band: 83–113 cfs
PERIOD HIGH
1,259cfs
PERIOD LOW
46cfs
RUNNABLE
24%
last 1 year in band
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
22.2in
≈ normal
22.16 in of precipitation so far this year — about average for this point in the season (normal 23.18 in).
YTD Total
22.2in
This year so far
Normal to Date
23.2in
30-yr average
Typical Range
18.4–29.2in
10th–90th pct YTD
Departure
-4%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 2.72" · normal 3.37" (2.0–5.0)
Feb: 1.54" · normal 3.02" (1.9–5.0)
Mar: 4.25" · normal 4.19" (2.2–6.5)
Apr: 2.85" · normal 3.74" (2.1–5.9)
May: 2.99" · normal 3.68" (1.7–5.4)
Jun: 3.95" · normal 4.35" (2.3–7.5)
Jul: 3.86" (so far)· normal 4.43" (2.2–7.1)
Aug: normal 4.18" (1.3–7.2)
Sep: normal 4.31" (1.6–7.0)
Oct: normal 3.84" (1.6–6.2)
Nov: normal 3.07" (1.3–4.6)
Dec: normal 3.97" (1.9–5.8)
Baseline 1991–2020 · Source: Open-Meteo09:47 AM
Your History · South Branch Raritan River at Stanton NJ
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Station Location
40.5722, -74.8681Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-07 00:00 UTC
Site #01397000·USGS
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