USGS · 452538122471600

DERRY DELL CREEK

USGS · 452538122471600LIVE

DERRY DELL CREEK NEAR SW 107TH CT, AT TIGARD, OR

TIGARD, OR45.4272°N, -122.7877°W

AIR TEMP

56°F

WIND

4mph NE

FISH INDEX

81SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

—cfs

No flow data available

Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

22.3in

-16% vs normal

22.26 in of precipitation so far this year, 16% below the 30-year normal of 26.52 in for this point in the season.

YTD Total

22.3in

This year so far

Normal to Date

26.5in

30-yr average

Typical Range

19.1–35.0in

10th–90th pct YTD

Departure

-16%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 3.52" · normal 6.56" (3.4–9.5)

Jan

Feb: 6.59" · normal 5.06" (2.6–7.7)

Feb

Mar: 5.47" · normal 5.63" (3.2–8.8)

Mar

Apr: 3.76" · normal 4.49" (2.5–6.4)

Apr

May: 1.18" · normal 2.83" (0.9–4.6)

May

Jun: 1.71" · normal 1.73" (1.0–3.0)

Jun

Jul: 0.02" (so far)· normal 0.49" (0.1–1.0)

Jul

Aug: normal 0.59" (0.1–1.1)

Aug

Sep: normal 1.75" (0.1–3.7)

Sep

Oct: normal 4.13" (1.6–6.7)

Oct

Nov: normal 6.80" (3.1–10.3)

Nov

Dec: normal 7.56" (4.1–10.5)

Dec

Baseline 1991–2020 · Source: Open-Meteo07:04 UTC

Your History · DERRY DELL CREEK NEAR SW 107TH CT, AT TIGARD, OR

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Station Location

45.4272, -122.7877

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