USGS · 453030122560101

ROCK CREEK

USGS · 453030122560101LIVE

ROCK CREEK AT BROOKWOOD AVENUE, HILLSBORO, OR

OREGON45.5082°N, -122.9335°W

AIR TEMP

81°F

WIND

10mph NNE

FISH INDEX

56SCORE / 100

GOOD · 3 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

20.1in

-24% vs normal

20.15 in of precipitation so far this year, 24% below the 30-year normal of 26.59 in for this point in the season.

YTD Total

20.1in

This year so far

Normal to Date

26.6in

30-yr average

Typical Range

19.9–33.9in

10th–90th pct YTD

Departure

-24%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 3.18" · normal 6.69" (3.1–10.3)

Jan

Feb: 5.53" · normal 5.20" (2.3–7.8)

Feb

Mar: 4.99" · normal 5.85" (3.2–9.5)

Mar

Apr: 3.41" · normal 4.42" (2.6–6.5)

Apr

May: 1.21" · normal 2.75" (0.6–4.6)

May

Jun: 1.83" · normal 1.60" (0.8–2.6)

Jun

Jul: 0.00" (so far)· normal 0.45" (0.1–1.0)

Jul

Aug: normal 0.54" (0.0–1.1)

Aug

Sep: normal 1.68" (0.1–3.6)

Sep

Oct: normal 4.13" (1.3–7.5)

Oct

Nov: normal 6.95" (3.0–10.1)

Nov

Dec: normal 7.98" (4.3–11.3)

Dec

Baseline 1991–2020 · Source: Open-Meteo12:06 AM

Your History · ROCK CREEK AT BROOKWOOD AVENUE, HILLSBORO, OR

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Station Location

45.5082, -122.9335

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