USGS · 06066500

MISSOURI RIVER

USGS · 06066500LIVE

Missouri River bl Holter Dam nr Wolf Cr MT

LEWIS AND CLARK COUNTY, MT46.9947°N, -112.0107°W Updated 1 hr ago

FLOW RATE

3,595cfs

AIR TEMP

77°F

WIND

12mph WNW

FISH INDEX

63SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

3,595cfs 26.2% vs avg

Optimal band: 2,712–3,668 cfs

PERIOD HIGH

4,728cfs

PERIOD LOW

2,869cfs

RUNNABLE

95%

last 1 year in band

Precipitation History

Precipitation · YTD

Wet

Wetter than normal

2026 to date

14.5in

+46% vs normal

14.48 in of precipitation so far this year, 46% above the 30-year normal of 9.94 in for this point in the season.

YTD Total

14.5in

This year so far

Normal to Date

9.9in

30-yr average

Typical Range

7.4–12.9in

10th–90th pct YTD

Departure

+46%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.57" · normal 0.75" (0.3–1.1)

Jan

Feb: 0.98" · normal 0.80" (0.2–1.5)

Feb

Mar: 2.49" · normal 1.03" (0.5–1.6)

Mar

Apr: 2.56" · normal 2.03" (1.4–2.8)

Apr

May: 3.28" · normal 2.43" (1.3–3.5)

May

Jun: 4.40" · normal 2.70" (1.1–5.1)

Jun

Jul: 0.20" (so far)· normal 0.92" (0.2–1.7)

Jul

Aug: normal 0.98" (0.2–1.8)

Aug

Sep: normal 1.38" (0.3–2.5)

Sep

Oct: normal 1.27" (0.6–2.3)

Oct

Nov: normal 0.96" (0.4–1.6)

Nov

Dec: normal 0.84" (0.3–1.4)

Dec

Baseline 1991–2020 · Source: Open-Meteo01:16 AM

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Station Location

46.9947, -112.0107

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DATA · USGS · NOAA · NWSUPDATED 2026-07-03 01:16 UTC

Site #06066500·USGS

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