USGS · 06065500

MISSOURI RIVER

USGS · 06065500LIVE

Missouri River bl Hauser Dam near Helena MT

LEWIS AND CLARK COUNTY, MT46.7662°N, -111.8888°W Updated 1 d ago

FLOW RATE

3,598cfs

AIR TEMP

78°F

WIND

12mph W

FISH INDEX

63SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

3,598cfs 52.2% vs avg

Optimal band: 2,758–3,732 cfs

PERIOD HIGH

3,711cfs

PERIOD LOW

3,150cfs

RUNNABLE

100%

last 30 day in band

Precipitation History

Precipitation · YTD

Wet

Wetter than normal

2026 to date

11.9in

+26% vs normal

11.95 in of precipitation so far this year, 26% above the 30-year normal of 9.47 in for this point in the season.

YTD Total

11.9in

This year so far

Normal to Date

9.5in

30-yr average

Typical Range

7.7–12.0in

10th–90th pct YTD

Departure

+26%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.98" · normal 0.78" (0.3–1.2)

Jan

Feb: 1.15" · normal 0.77" (0.2–1.4)

Feb

Mar: 1.89" · normal 1.06" (0.6–1.7)

Mar

Apr: 1.85" · normal 1.89" (1.2–2.6)

Apr

May: 2.40" · normal 2.21" (1.3–3.5)

May

Jun: 3.56" · normal 2.57" (1.1–4.6)

Jun

Jul: 0.12" (so far)· normal 0.96" (0.2–1.9)

Jul

Aug: normal 0.90" (0.3–1.8)

Aug

Sep: normal 1.20" (0.3–1.9)

Sep

Oct: normal 1.17" (0.5–2.1)

Oct

Nov: normal 0.94" (0.3–1.6)

Nov

Dec: normal 0.90" (0.4–1.6)

Dec

Baseline 1991–2020 · Source: Open-Meteo12:01 AM

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Station Location

46.7662, -111.8888

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DATA · USGS · NOAA · NWSUPDATED 2026-07-03 00:01 UTC

Site #06065500·USGS

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