USGS · 12355500

N F FLATHEAD RIVER

USGS · 12355500LIVE

N F Flathead River nr Columbia Falls MT

MONTANA48.4958°N, -114.1268°W Updated 13 hr ago

FLOW RATE

7,453cfs

AIR TEMP

56°F

WIND

5mph N

FISH INDEX

69SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

7,453cfs 48.0% vs avg

Optimal band: 1,668–2,256 cfs

PERIOD HIGH

15,033cfs

PERIOD LOW

577cfs

RUNNABLE

10%

last 1 year in band

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

17.6in

≈ normal

17.58 in of precipitation so far this year — about average for this point in the season (normal 18.31 in).

YTD Total

17.6in

This year so far

Normal to Date

18.3in

30-yr average

Typical Range

14.0–23.4in

10th–90th pct YTD

Departure

-4%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.91" · normal 3.04" (1.5–4.5)

Jan

Feb: 1.00" · normal 2.32" (0.9–3.8)

Feb

Mar: 3.17" · normal 2.93" (1.6–4.5)

Mar

Apr: 3.54" · normal 2.79" (1.6–4.1)

Apr

May: 3.89" · normal 3.20" (2.1–4.4)

May

Jun: 5.02" · normal 3.79" (2.1–5.9)

Jun

Jul: 0.06" (so far)· normal 1.34" (0.2–2.4)

Jul

Aug: normal 1.24" (0.4–2.0)

Aug

Sep: normal 1.89" (0.5–3.1)

Sep

Oct: normal 2.74" (1.2–4.6)

Oct

Nov: normal 3.35" (1.9–5.2)

Nov

Dec: normal 3.06" (2.0–4.6)

Dec

Baseline 1991–2020 · Source: Open-Meteo01:14 PM

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Station Location

48.4958, -114.1268

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DATA · USGS · NOAA · NWSUPDATED 2026-07-03 13:16 UTC

Site #12355500·USGS

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