USGS · 12108500

NEWAUKUM CREEK

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NEWAUKUM CREEK NEAR BLACK DIAMOND, WA

KING COUNTY, WA47.2757°N, -122.0596°W Updated 13 hr ago

FLOW RATE

24cfs

AIR TEMP

60°F

WIND

3mph W

FISH INDEX

81SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

24cfs 1.7% vs avg

Optimal band: 31–41 cfs

PERIOD HIGH

727cfs

PERIOD LOW

6cfs

RUNNABLE

last 1 year in band

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

28.6in

≈ normal

28.6 in of precipitation so far this year — about average for this point in the season (normal 33.58 in).

YTD Total

28.6in

This year so far

Normal to Date

33.6in

30-yr average

Typical Range

25.9–41.2in

10th–90th pct YTD

Departure

-15%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 5.26" · normal 8.54" (5.3–11.7)

Jan

Feb: 4.30" · normal 6.11" (2.8–9.5)

Feb

Mar: 10.30" · normal 6.73" (4.3–11.1)

Mar

Apr: 2.97" · normal 5.30" (2.3–7.9)

Apr

May: 2.73" · normal 3.79" (1.8–5.5)

May

Jun: 2.91" · normal 2.95" (1.5–4.8)

Jun

Jul: 0.14" (so far)· normal 1.07" (0.3–2.0)

Jul

Aug: normal 1.39" (0.4–2.6)

Aug

Sep: normal 3.05" (0.6–5.2)

Sep

Oct: normal 6.14" (3.2–8.5)

Oct

Nov: normal 9.14" (4.5–14.1)

Nov

Dec: normal 8.52" (5.7–12.0)

Dec

Baseline 1991–2020 · Source: Open-Meteo01:39 PM

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Station Location

47.2757, -122.0596

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DATA · USGS · NOAA · NWSUPDATED 2026-07-03 13:39 UTC

Site #12108500·USGS

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