Waterlands
South Fork Bull Run
USGS · 14139800
SOUTH FORK BULL RUN
USGS · 14139800LIVE

SOUTH FORK BULL RUN RIVER NEAR BULL RUN, OR

CLACKAMAS COUNTY, OR45.4446°N, -122.1095°W Updated 10 hr ago
FLOW RATE
32cfs
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 YEAR
32cfs 11.6% vs avg
Optimal band: 4460 cfs
PERIOD HIGH
2,064cfs
PERIOD LOW
6cfs
RUNNABLE
7%
last 1 year in band
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

40.9in

≈ normal

40.89 in of precipitation so far this year — about average for this point in the season (normal 45.78 in).

YTD Total

40.9in

This year so far

Normal to Date

45.8in

30-yr average

Typical Range

35.3–58.1in

10th–90th pct YTD

Departure

-11%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 6.08" · normal 11.52" (6.2–16.3)
Jan
Feb: 8.92" · normal 8.81" (5.5–15.0)
Feb
Mar: 10.00" · normal 9.07" (5.5–14.5)
Mar
Apr: 6.44" · normal 7.33" (3.7–11.0)
Apr
May: 3.64" · normal 5.07" (2.4–7.4)
May
Jun: 5.74" · normal 3.72" (2.3–5.5)
Jun
Jul: 0.07" (so far)· normal 0.98" (0.2–2.1)
Jul
Aug: normal 1.18" (0.2–2.3)
Aug
Sep: normal 3.20" (0.5–6.5)
Sep
Oct: normal 7.60" (3.3–12.9)
Oct
Nov: normal 11.61" (5.1–16.8)
Nov
Dec: normal 12.65" (7.7–18.4)
Dec
Baseline 19912020 · Source: Open-Meteo12:01 AM
Your History · SOUTH FORK BULL RUN RIVER NEAR BULL RUN, OR

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Station Location

45.4446, -122.1095
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DATA · USGS · NOAA · NWSUPDATED 2026-07-07 00:00 UTC
Site #14139800·USGS

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