USGS · 01105554

NEPONSET RIVER

USGS · 01105554LIVE

NEPONSET RIVER AT GREENLODGE ST NEAR CANTON, MA

DEDHAM, MA42.2093°N, -71.1459°W Updated 13 hr ago

FLOW RATE

32cfs

AIR TEMP

90°F

WIND

10mph WNW

FISH INDEX

50SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 7 DAY

32cfs 63.0% vs avg

Optimal band: 29–39 cfs

PERIOD HIGH

35cfs

PERIOD LOW

31cfs

RUNNABLE

100%

last 7 day in band

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

20.1in

≈ normal

20.05 in of precipitation so far this year — about average for this point in the season (normal 21.36 in).

YTD Total

20.1in

This year so far

Normal to Date

21.4in

30-yr average

Typical Range

15.6–27.3in

10th–90th pct YTD

Departure

-6%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 3.44" · normal 3.45" (2.0–5.0)

Jan

Feb: 2.60" · normal 3.09" (1.7–4.4)

Feb

Mar: 5.29" · normal 4.36" (2.4–6.8)

Mar

Apr: 2.80" · normal 3.71" (2.0–6.2)

Apr

May: 3.16" · normal 3.04" (1.4–4.5)

May

Jun: 2.69" · normal 3.50" (1.4–6.1)

Jun

Jul: 0.07" (so far)· normal 3.08" (1.6–5.1)

Jul

Aug: normal 3.48" (1.6–5.8)

Aug

Sep: normal 3.45" (1.5–6.6)

Sep

Oct: normal 3.96" (1.3–6.3)

Oct

Nov: normal 3.45" (1.9–5.0)

Nov

Dec: normal 4.26" (2.3–6.6)

Dec

Baseline 1991–2020 · Source: Open-Meteo01:38 PM

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Station Location

42.2093, -71.1459

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DATA · USGS · NOAA · NWSUPDATED 2026-07-03 13:38 UTC

Site #01105554·USGS

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