Rivermatics

USGS Streamgage 13336500

Selway River near Lowell, ID

Selway River near Lowell, ID is USGS streamgage 13336500 in Idaho, monitoring river discharge in hydrologic subbasin 17060302. It drains a watershed of about 1,915 square miles. Discharge records at this site go back to 1911. Typical flow runs near 2,509.4 cfs in July and 5,466 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
Idaho
Drainage area
1,915 sq mi
Subbasin (HUC-8)
17060302
Coordinates
46.08667, -115.51389
USGS site number
13336500
Records begin
1911-04-11 (115 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 115 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 590.5 1,033.4 2,400
February 678.7 1,253.8 2,802.4
March 1,008.2 2,048.1 4,316.5
April 2,530.7 5,466 10,700.7
May 7,084.8 12,338.7 21,393.5
June 5,091.3 10,186.7 20,066.7
July 1,285 2,509.4 5,556.5
August 566.7 823.8 1,338.3
September 445.9 625.9 1,091.7
October 460.6 724.7 1,619.7
November 543.3 1,026.9 2,455
December 552.6 1,020.5 2,531.3

All values in cubic feet per second (cfs).

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