MEDIAN FLOW RATE · 1 YEAR
—cfs
No flow data available
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
20.6in
≈ normal
20.58 in of precipitation so far this year — about average for this point in the season (normal 23.03 in).
YTD Total
20.6in
This year so far
Normal to Date
23.0in
30-yr average
Typical Range
18.3–29.2in
10th–90th pct YTD
Departure
-11%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 2.85" · normal 3.32" (2.0–5.0)
Feb: 2.05" · normal 3.02" (1.6–5.0)
Mar: 3.25" · normal 4.21" (2.2–6.5)
Apr: 3.36" · normal 3.73" (2.1–5.7)
May: 3.64" · normal 3.72" (1.7–5.8)
Jun: 3.47" · normal 4.37" (2.3–7.5)
Jul: 1.97" (so far)· normal 4.33" (2.2–6.5)
Aug: normal 4.18" (1.3–7.2)
Sep: normal 4.25" (1.5–7.0)
Oct: normal 3.75" (1.6–5.7)
Nov: normal 3.05" (1.3–4.6)
Dec: normal 3.99" (1.9–5.8)
Baseline 1991–2020 · Source: Open-Meteo01:12 AM
Your History · Rock Brook near Blawenburg NJ
Track your history
Sign in to track your sessions at Rock Brook near Blawenburg NJ — best days, monthly trends, and time on the water.
Sign inSPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
86°
73°
MON
73°
67°
TUE
68°
64°
WED
80°
64°
THU
90°
66°
FRI
89°
68°
SAT
85°
67°
FISH INDEX
Temperature
Warm
Wind
Light
Pressure
Stable
Moon Phase
Good
DAYLIGHT
SUNRISE
05:34 AM
SUNSET
08:32 PM
14H 58M OF DAYLIGHT
MOON PHASE
Last Quarter
64% illuminated
Station Location
40.4131, -74.6839Loading map…
DATA · USGS · NOAA · NWS
Site #01401595·USGS
Create a free account to save favorites, set flow alerts, and track conditions