USGS · 01105917

MATTAPOISETT RIVER

USGS · 01105917LIVE

MATTAPOISETT RIVER NEAR MATTAPOISETT, MA

MATTAPOISETT, MA41.6626°N, -70.8384°W Updated 10 hr ago

FLOW RATE

3cfs

AIR TEMP

81°F

WIND

7mph WNW

FISH INDEX

56SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

3cfs 42.0% vs avg

Optimal band: 17–23 cfs

PERIOD HIGH

237cfs

PERIOD LOW

1cfs

RUNNABLE

24%

last 1 year in band

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

21.7in

≈ normal

21.74 in of precipitation so far this year — about average for this point in the season (normal 21.84 in).

YTD Total

21.7in

This year so far

Normal to Date

21.8in

30-yr average

Typical Range

16.5–27.2in

10th–90th pct YTD

Departure

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 3.77" · normal 3.80" (2.1–5.6)

Jan

Feb: 3.27" · normal 3.29" (1.9–5.4)

Feb

Mar: 5.42" · normal 4.40" (2.3–7.2)

Mar

Apr: 2.89" · normal 3.88" (2.1–6.0)

Apr

May: 3.44" · normal 3.16" (1.6–4.9)

May

Jun: 2.93" · normal 3.17" (1.1–5.6)

Jun

Jul: 0.02" (so far)· normal 2.71" (1.5–4.4)

Jul

Aug: normal 3.27" (1.6–5.1)

Aug

Sep: normal 3.61" (1.8–5.9)

Sep

Oct: normal 4.31" (1.7–7.2)

Oct

Nov: normal 3.88" (1.7–5.8)

Nov

Dec: normal 4.52" (2.6–6.7)

Dec

Baseline 1991–2020 · Source: Open-Meteo08:15 AM

Your History · MATTAPOISETT RIVER NEAR MATTAPOISETT, MA

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Station Location

41.6626, -70.8384

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DATA · USGS · NOAA · NWSUPDATED 2026-07-03 10:54 UTC

Site #01105917·USGS

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