USGS · 14218030

SWIFT POWERPLANT NO 2 TAILWATER RIVER

USGS · 14218030LIVE

SWIFT POWERPLANT NO 2 TAILWATER NEAR COUGAR, WA

CLARK COUNTY, WA46.0582°N, -122.2609°W

AIR TEMP

64°F

WIND

6mph SW

FISH INDEX

75SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

—cfs

No flow data available

Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

42.4in

-25% vs normal

42.43 in of precipitation so far this year, 25% below the 30-year normal of 56.87 in for this point in the season.

YTD Total

42.4in

This year so far

Normal to Date

56.9in

30-yr average

Typical Range

40.5–72.3in

10th–90th pct YTD

Departure

-25%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 6.82" · normal 15.79" (9.4–22.1)

Jan

Feb: 7.94" · normal 11.18" (4.8–17.9)

Feb

Mar: 13.98" · normal 11.62" (6.9–20.4)

Mar

Apr: 6.01" · normal 8.60" (3.5–13.0)

Apr

May: 3.13" · normal 5.36" (2.5–7.7)

May

Jun: 4.46" · normal 3.83" (1.9–5.4)

Jun

Jul: 0.10" (so far)· normal 1.13" (0.2–2.2)

Jul

Aug: normal 1.54" (0.1–2.8)

Aug

Sep: normal 4.12" (0.6–7.2)

Sep

Oct: normal 9.53" (3.5–15.2)

Oct

Nov: normal 16.08" (7.5–23.3)

Nov

Dec: normal 16.71" (10.4–26.1)

Dec

Baseline 1991–2020 · Source: Open-Meteo05:15 AM

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Station Location

46.0582, -122.2609

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