Rivermatics

USGS Streamgage 13317660

Snake River at McDuff Rapids at China Garden, ID

Snake River at McDuff Rapids at China Garden, ID is USGS streamgage 13317660 in Idaho, monitoring river discharge in hydrologic subbasin 17060103. It sits on the Snake River, alongside 30 other gauges Rivermatics tracks on the same river. Discharge records at this site go back to 2003. Typical flow runs near 23,680.6 cfs in July and 34,150 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead, alongside daily high and low water-temperature forecasts.

View live conditions & forecast →

Gauge details

State
Idaho
Subbasin (HUC-8)
17060103
Coordinates
46.00306, -116.91694
USGS site number
13317660
Records begin
2003-10-01 (23 years)
Rivermatics forecast
14-day flow outlook + water temperature

14-day flow forecast

Based on observations through for Snake River at McDuff Rapids at China Garden, ID. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
12,240 13,004 13,794
11,869 12,927 14,108
11,717 12,932 14,408
11,570 12,924 14,654
11,386 12,845 14,626
11,222 12,782 14,683
11,108 12,759 14,695
11,018 12,708 14,648
10,963 12,689 14,691
10,916 12,670 14,704
10,870 12,674 14,795
10,819 12,693 14,960
10,790 12,701 15,043
10,771 12,678 14,973

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 23 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 14,983.9 18,993.5 27,764.5
February 14,578.6 20,541.4 31,667.9
March 16,996.8 24,925.8 42,290.3
April 20,510 34,150 80,543.3
May 34,916.1 56,829 93,841.9
June 27,856.7 50,473.3 90,683.3
July 16,371 23,680.6 34,593.5
August 12,525.8 15,729 20,593.5
September 12,713.3 15,333.3 21,353.3
October 12,654.8 14,677.4 19,461.3
November 12,536.7 13,993.3 17,246.7
December 13,087.1 15,935.5 22,041.9

All values in cubic feet per second (cfs).

Common questions

When does Snake River at McDuff Rapids at China Garden, ID normally run highest?
May, on the long-term record. The median daily flow that month is about 56,829 cfs, against 13,993.3 cfs in November, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Snake River at McDuff Rapids at China Garden, ID?
It depends on the month. In January, half of days historically fall near 18,993.5 cfs, with the middle 80% of days between 14,983.9 and 27,764.5 cfs. The month-by-month table on this page gives the full range.
How long has Snake River at McDuff Rapids at China Garden, ID been measured?
Discharge records at USGS site 13317660 begin in 2003, about 23 years, covering roughly 8,345 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Snake River at McDuff Rapids at China Garden, ID?
Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. A companion model forecasts each day's water-temperature high and low. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
Where is Snake River at McDuff Rapids at China Garden, ID?
The gauge sits at 46.00306, -116.91694, in Idaho, in hydrologic subbasin 17060103.
Can I use Snake River at McDuff Rapids at China Garden, ID data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Upstream and downstream on the Snake River

Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Snake River in full.

Other gauges in this subbasin