MEDIAN FLOW RATE · 1 DAY
—cfs
No flow data available
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
19.1in
≈ normal
19.07 in of precipitation so far this year — about average for this point in the season (normal 22.37 in).
YTD Total
19.1in
This year so far
Normal to Date
22.4in
30-yr average
Typical Range
17.8–28.0in
10th–90th pct YTD
Departure
-15%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 2.84" · normal 3.31" (2.1–4.9)
Feb: 1.92" · normal 3.02" (1.6–5.2)
Mar: 3.72" · normal 4.25" (2.0–6.4)
Apr: 3.32" · normal 3.70" (2.0–5.6)
May: 3.71" · normal 3.66" (1.8–5.4)
Jun: 3.41" · normal 4.21" (1.9–7.7)
Jul: 0.13" (so far)· normal 4.24" (2.3–6.6)
Aug: normal 4.21" (1.4–7.2)
Sep: normal 4.15" (1.2–6.9)
Oct: normal 3.76" (1.4–5.6)
Nov: normal 3.03" (1.3–4.6)
Dec: normal 4.01" (1.9–6.1)
Baseline 1991–2020 · Source: Open-Meteo07:03 PM
Your History · Millstone River at Griggstown NJ
Track your history
Sign in to track your sessions at Millstone River at Griggstown NJ — best days, monthly trends, and time on the water.
Sign inSPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
103°
78°
FRI
105°
79°
SAT
97°
73°
SUN
83°
68°
MON
79°
67°
TUE
76°
68°
WED
80°
66°
FISH INDEX
Temperature
Too Hot
Wind
Light
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
05:32 AM
SUNSET
08:32 PM
15H 0M OF DAYLIGHT1H 29M REMAINING
MOON PHASE
Waning Gibbous
92% illuminated
Station Location
40.4400, -74.6175Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-02 19:03 UTC
Site #01401750·USGS
Create a free account to save favorites, set flow alerts, and track conditions