Rivermatics

USGS Streamgage 09315000

Green River at Green River, UT

Green River at Green River, UT is USGS streamgage 09315000 in Utah, monitoring river discharge in hydrologic subbasin 14060008. It sits on the Green River, alongside 8 other gauges Rivermatics tracks on the same river. It drains a watershed of about 44,850 square miles. Discharge records at this site go back to 1894. Typical flow runs near 5,991.3 cfs in July and 5,928 cfs in April, with the higher of the two arriving in July. 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
Utah
Drainage area
44,850 sq mi
Gauge elevation
4,057 ft
Subbasin (HUC-8)
14060008
Coordinates
38.98887, -110.15036
USGS site number
09315000
Records begin
1894-10-01 (132 years)
Rivermatics forecast
14-day flow outlook + water temperature

14-day flow forecast

Based on observations through for Green River at Green River, UT. 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
2,105 2,159 2,216
2,052 2,123 2,190
2,012 2,096 2,183
1,981 2,080 2,203
1,953 2,070 2,217
1,943 2,084 2,295
1,957 2,134 2,463
1,950 2,153 2,532
1,936 2,146 2,523
1,906 2,116 2,468
1,875 2,085 2,420
1,844 2,055 2,385
1,811 2,024 2,338
1,783 1,998 2,306

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 132 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 1,186.5 2,007.4 4,106.1
February 1,556.9 2,394.8 4,785.2
March 2,222.9 3,620.3 7,455.5
April 3,216 5,928 12,108.3
May 6,098.7 13,357.7 25,451.6
June 5,400.3 15,880 31,523.3
July 1,828.1 5,991.3 14,016.1
August 1,357.1 2,889.4 6,237.4
September 1,257 2,394.3 4,476
October 1,487.7 2,693.5 4,653.9
November 1,653.7 2,628.3 4,255.7
December 1,167.7 2,051.6 4,105.2

All values in cubic feet per second (cfs).

Common questions

When does Green River at Green River, UT normally run highest?
June, on the long-term record. The median daily flow that month is about 15,880 cfs, against 2,007.4 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Green River at Green River, UT?
It depends on the month. In January, half of days historically fall near 2,007.4 cfs, with the middle 80% of days between 1,186.5 and 4,106.1 cfs. The month-by-month table on this page gives the full range.
How long has Green River at Green River, UT been measured?
Discharge records at USGS site 09315000 begin in 1894, about 132 years, covering roughly 9,200 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Green River at Green River, UT?
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 Green River at Green River, UT?
The gauge sits at 38.98887, -110.15036, in Utah, in hydrologic subbasin 14060008, at an elevation of about 4,057 feet, draining roughly 44,850 square miles.
Can I use Green River at Green River, UT 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 Green River

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

Other gauges in this subbasin