USGS · 412321070401701

MILL BROOK

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MILL BROOK AT SCOTCHMANS LN, WEST TISBURY, MA

WEST TISBURY, MA41.3892°N, -70.6709°W Updated 15 hr ago

FLOW RATE

3cfs

AIR TEMP

85°F

WIND

11mph WSW

FISH INDEX

50SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

3cfs

Optimal band: 3–3 cfs

PERIOD HIGH

4cfs

PERIOD LOW

3cfs

RUNNABLE

94%

last 30 day in band

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

22.1in

≈ normal

22.06 in of precipitation so far this year — about average for this point in the season (normal 23.91 in).

YTD Total

22.1in

This year so far

Normal to Date

23.9in

30-yr average

Typical Range

19.5–29.5in

10th–90th pct YTD

Departure

-8%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 4.15" · normal 4.21" (2.4–6.1)

Jan

Feb: 3.28" · normal 3.68" (2.1–6.1)

Feb

Mar: 5.93" · normal 4.80" (2.6–7.6)

Mar

Apr: 2.40" · normal 4.14" (2.4–6.2)

Apr

May: 4.12" · normal 3.61" (1.9–5.4)

May

Jun: 2.17" · normal 3.32" (1.2–6.0)

Jun

Jul: 0.00" (so far)· normal 2.77" (1.1–5.0)

Jul

Aug: normal 3.37" (1.8–5.0)

Aug

Sep: normal 3.98" (2.1–6.0)

Sep

Oct: normal 4.90" (2.3–7.9)

Oct

Nov: normal 4.37" (2.0–6.4)

Nov

Dec: normal 5.00" (3.0–7.2)

Dec

Baseline 1991–2020 · Source: Open-Meteo02:23 PM

Your History · MILL BROOK AT SCOTCHMANS LN, WEST TISBURY, MA

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Station Location

41.3892, -70.6709

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DATA · USGS · NOAA · NWSUPDATED 2026-07-02 15:42 UTC

Site #412321070401701·USGS

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