USGS · 06123030

MUSSELSHELL RIVER

USGS · 06123030LIVE

Musselshell River ab Mud Cr nr Shawmut MT

WHEATLAND COUNTY, MT46.3190°N, -109.4605°W Updated 8 hr ago

FLOW RATE

154cfs

AIR TEMP

58°F

WIND

4mph WNW

FISH INDEX

75SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

154cfs 87.1% vs avg

Optimal band: 37–51 cfs

PERIOD HIGH

159cfs

PERIOD LOW

21cfs

RUNNABLE

29%

last 30 day in band

Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

8.3in

-18% vs normal

8.26 in of precipitation so far this year, 18% below the 30-year normal of 10.11 in for this point in the season.

YTD Total

8.3in

This year so far

Normal to Date

10.1in

30-yr average

Typical Range

7.3–13.3in

10th–90th pct YTD

Departure

-18%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.36" · normal 0.67" (0.3–1.1)

Jan

Feb: 1.15" · normal 0.57" (0.1–1.1)

Feb

Mar: 2.08" · normal 0.95" (0.3–1.6)

Mar

Apr: 1.06" · normal 2.19" (1.2–3.0)

Apr

May: 1.53" · normal 2.91" (1.4–5.0)

May

Jun: 1.93" · normal 2.66" (1.3–4.8)

Jun

Jul: 0.14" (so far)· normal 1.16" (0.3–1.8)

Jul

Aug: normal 1.05" (0.2–2.6)

Aug

Sep: normal 1.31" (0.5–2.3)

Sep

Oct: normal 1.40" (0.6–2.5)

Oct

Nov: normal 0.81" (0.3–1.4)

Nov

Dec: normal 0.66" (0.2–1.3)

Dec

Baseline 1991–2020 · Source: Open-Meteo07:02 AM

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Station Location

46.3190, -109.4605

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DATA · USGS · NOAA · NWSUPDATED 2026-07-03 08:11 UTC

Site #06123030·USGS

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