USGS · 06080900

SUN RIVER

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Sun River bl Diversion Dam nr Augusta MT

TETON COUNTY, MT47.6185°N, -112.6921°W Updated 1 hr ago

FLOW RATE

282cfs

AIR TEMP

78°F

WIND

10mph WNW

FISH INDEX

69SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

282cfs 3.6% vs avg

Optimal band: 294–398 cfs

PERIOD HIGH

1,498cfs

PERIOD LOW

110cfs

RUNNABLE

26%

last 30 day in band

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

15.3in

≈ normal

15.31 in of precipitation so far this year — about average for this point in the season (normal 14.35 in).

YTD Total

15.3in

This year so far

Normal to Date

14.3in

30-yr average

Typical Range

11.5–17.2in

10th–90th pct YTD

Departure

+7%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.58" · normal 1.47" (0.8–2.2)

Jan

Feb: 1.25" · normal 1.41" (0.4–2.3)

Feb

Mar: 3.50" · normal 1.74" (0.9–2.9)

Mar

Apr: 1.66" · normal 2.38" (1.6–3.3)

Apr

May: 3.54" · normal 3.31" (2.0–4.7)

May

Jun: 4.56" · normal 3.53" (2.0–5.5)

Jun

Jul: 0.23" (so far)· normal 1.57" (0.3–3.3)

Jul

Aug: normal 1.61" (0.6–2.8)

Aug

Sep: normal 1.64" (0.6–2.5)

Sep

Oct: normal 1.73" (0.9–2.9)

Oct

Nov: normal 1.57" (0.8–2.7)

Nov

Dec: normal 1.51" (0.8–2.6)

Dec

Baseline 1991–2020 · Source: Open-Meteo12:34 AM

Your History · Sun River bl Diversion Dam nr Augusta MT

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Station Location

47.6185, -112.6921

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DATA · USGS · NOAA · NWSUPDATED 2026-07-08 00:00 UTC

Site #06080900·USGS

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