USGS · 12141300

MIDDLE FORK SNOQUALMIE

USGS · 12141300LIVE

MIDDLE FORK SNOQUALMIE RIVER NEAR TANNER, WA

KING COUNTY, WA47.4859°N, -121.6479°W Updated 15 hr ago

FLOW RATE

384cfs

AIR TEMP

55°F

WIND

2mph WSW

FISH INDEX

81SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 7 DAY

384cfs 60.1% vs avg

Optimal band: 348–470 cfs

PERIOD HIGH

512cfs

PERIOD LOW

384cfs

RUNNABLE

75%

last 7 day in band

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

48.5in

≈ normal

48.46 in of precipitation so far this year — about average for this point in the season (normal 43 in).

YTD Total

48.5in

This year so far

Normal to Date

43.0in

30-yr average

Typical Range

32.9–55.6in

10th–90th pct YTD

Departure

+13%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 7.62" · normal 10.85" (7.1–15.7)

Jan

Feb: 6.21" · normal 7.84" (3.4–13.0)

Feb

Mar: 18.55" · normal 8.16" (4.8–11.7)

Mar

Apr: 5.83" · normal 6.70" (3.0–10.4)

Apr

May: 4.15" · normal 4.93" (2.8–7.1)

May

Jun: 5.95" · normal 4.30" (2.1–6.2)

Jun

Jul: 0.14" (so far)· normal 1.83" (0.5–3.4)

Jul

Aug: normal 2.03" (0.7–3.2)

Aug

Sep: normal 4.22" (0.9–7.5)

Sep

Oct: normal 8.42" (4.1–12.6)

Oct

Nov: normal 11.61" (5.3–16.4)

Nov

Dec: normal 10.53" (7.2–15.9)

Dec

Baseline 1991–2020 · Source: Open-Meteo01:09 PM

Your History · MIDDLE FORK SNOQUALMIE RIVER NEAR TANNER, WA

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Station Location

47.4859, -121.6479

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DATA · USGS · NOAA · NWSUPDATED 2026-07-02 15:40 UTC

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