MEDIAN FLOW RATE · 1 YEAR
21cfs 45.7% vs avg
Optimal band: 33–45 cfs
PERIOD HIGH
973cfs
PERIOD LOW
9cfs
RUNNABLE
13%
last 1 year in band
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
20.1in
≈ normal
20.06 in of precipitation so far this year — about average for this point in the season (normal 23.11 in).
YTD Total
20.1in
This year so far
Normal to Date
23.1in
30-yr average
Typical Range
18.2–27.4in
10th–90th pct YTD
Departure
-13%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 2.84" · normal 3.57" (2.0–5.3)
Feb: 1.66" · normal 3.21" (1.7–4.4)
Mar: 4.55" · normal 4.23" (2.3–6.3)
Apr: 2.22" · normal 4.05" (2.1–6.0)
May: 3.86" · normal 3.70" (2.2–5.4)
Jun: 4.89" · normal 4.10" (2.1–6.8)
Jul: 0.05" (so far)· normal 4.02" (1.7–6.0)
Aug: normal 4.11" (2.0–6.7)
Sep: normal 4.32" (2.0–7.4)
Oct: normal 4.82" (1.8–8.4)
Nov: normal 3.55" (1.3–5.5)
Dec: normal 4.42" (2.4–6.2)
Baseline 1991–2020 · Source: Open-Meteo07:02 PM
Your History · MILL RIVER AT NORTHAMPTON, MA
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Weather Conditions
WEATHER CONDITIONS
TODAY
94°
72°
FRI
95°
77°
SAT
93°
69°
SUN
87°
63°
MON
76°
58°
TUE
64°
59°
WED
78°
59°
FISH INDEX
Temperature
Too Hot
Wind
Light
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
05:18 AM
SUNSET
08:31 PM
15H 13M OF DAYLIGHT1H 29M REMAINING
MOON PHASE
Waning Gibbous
92% illuminated
Station Location
42.3190, -72.6651Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-02 19:02 UTC
Site #01171500·USGS
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