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Green River

near Greendale, Utah · USGS gauge 09234500

For October 18, flow is higher than usual and water temperature is lower than usual.

Water temp
50 °F
13th percentile for the date
49 min ago
Flow
2,180 ft³/s
95th percentile for the date
49 min ago

The last October 18 it ran this high was 2015, at 2,320 ft³/s. The last October 18 it ran this low was 2021, at 49 °F.

These readings do not say whether fish are biting, whether there is parking, or whether the season is open. The shop reports below cover what is biting.

Green River reports from local shops

Each shop writes its own report. Listed here: the date on each one and the hatches and flies it names. Their words stay on their sites; follow the link to read them.

Before you drive

Overnight39°F, wind 5 mph
Partly Cloudy
Sunday62°F, wind 5 mph
Partly Sunny
Sunday Night41°F, wind 5 mph
Mostly Cloudy
Monday63°F, wind 5 to 10 mph
Sunny

How this water changes through the year

Flow through the yearFlow through the year
Flow for each week of the year from 2005 to 2026: the median and the middle 60 per cent of readings, with today's reading marked on today's date.02.5k5k7.5kJanMarMayJulSepNovToday 2,180medianmiddle 60% of yearsft³/sFlow for each week of the year from 2005 to 2026: the median and the middle 60 per cent of readings, with today's reading marked on today's date.02.5k5k7.5kJanMarMayJulSepNovToday 2,180medianmiddle 60% of yearsft³/s
Flow, ft³/s. The band is the middle 60% of years for each week; the line is the median. The marker is the current reading, on today's date.
Water temperature through the yearWater temperature through the year
Water temperature for each week of the year from 2005 to 2026: the median and the middle 60 per cent of readings, with today's reading marked on today's date.30405060JanMarMayJulSepNovToday 50medianmiddle 60% of years°FWater temperature for each week of the year from 2005 to 2026: the median and the middle 60 per cent of readings, with today's reading marked on today's date.30405060JanMarMayJulSepNovToday 50medianmiddle 60% of years°F
Water temperature, °F. The band is the middle 60% of years for each week; the line is the median. The marker is the current reading, on today's date.

Over 22 years of record, flow on Green River peaks in August, when the median runs about 1,790 ft³/s, and falls to its lowest in March at around 974 ft³/s. Today's 2,180 is up near the spring peak. The band on the chart is where the middle 60% of years fall, so a reading inside it is ordinary for the date and one outside it is not.

Nearby monitored waters

No water here is recommended over another. Same measurements, three closest waters.

Species

Listed by Utah DWR for Green River Below Flaming Gorge Dam (Blue Ribbon): Brown Trout, Mountain Whitefish, Rainbow Trout (likely); Channel Catfish, Colorado Pikeminnow, Colorado River Cutthroat Trout, Northern Pike (possible).

The agency's list covers Flaming Gorge Dam to the Colorado state line; DWR segment 228. USGS 09234500 Green River near Greendale sits at the dam end of segment 228, inside DWR's segment extent. Updated by the agency 2026-06-09, read 2026-09-08. The likely and possible are the agency's words, not a count from this site.

Access points

CoordinatesTo gauge
40.9083, -109.4229 · near Greendale
USGS gauge location. Not a listed public access point; check access before you travel.
0.0 mi

Sources and method

Live
USGS gauge 09234500, GREEN RIVER NEAR GREENDALE, UT, 0.0 mi from the listed access point. Fetched 2026-10-18 07:19 UTC.
History
USGS daily values: flow 2005–2026, 7,940 daily values; water temperature 2005–2026, 7,831 daily values. Percentile is the share of readings within 7 days of this calendar date, across all years, below the current one (flow n=315 over 21 years, water temperature n=305 over 21 years).
Rules
Seasons, limits and licences are not on this site and are not copied from the agency that publishes them: Utah DWR.
Species
Utah DWR, Green River Below Flaming Gorge Dam (Blue Ribbon), updated by the agency 2026-06-09, read 2026-09-08.
Shop reports
Chosen from the organic search results for “green river fishing report” (Ahrefs, read 2026-10-01), keeping shops and guides and dropping social media, forums and other aggregators. Linked, not quoted, and not endorsed. Report dates, hatches and fly names read from each page 2026-10-18, by matching a fixed list of insects and patterns: a name not on the list is not shown, and a report older than 30 days shows its date only.
Forecast
NOAA National Weather Service, api.weather.gov, for the coordinates of the nearest access point.

Independent presentation of public data. Not affiliated with, endorsed by, or approved by the USGS, NOAA or Utah DWR.