Rivermatics

USGS Streamgage 09260000

Little Snake River near Lily, CO

Little Snake River near Lily, CO is USGS streamgage 09260000 in Colorado, monitoring river discharge in hydrologic subbasin 14050003. It sits on the Little Snake River, alongside 5 other gauges Rivermatics tracks on the same river. It drains a watershed of about 4,034 square miles. Discharge records at this site go back to 1921. Typical flow runs near 175.5 cfs in July and 833.9 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.

View live conditions & forecast →

Gauge details

State
Colorado
Drainage area
4,034 sq mi
Gauge elevation
5,708 ft
Subbasin (HUC-8)
14050003
Coordinates
40.54902, -108.42432
USGS site number
09260000
Records begin
1921-10-01 (105 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Little Snake River near Lily, CO. 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
1.9 3.1 4.7
0.9 2.8 5.9
0.3 2.5 7.7
0.2 3 14.6
0.1 2.9 14.5
0.3 4.4 46.6
2.1 24.2 183
1.9 22.7 133
1.7 17.3 93.2
1.2 12.8 71.4
0.6 9.6 49.4
0.2 6.9 34.8
0 5.1 25.8
0 4 21.9

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 105 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 46.8 83.6 159.3
February 54.9 96.6 214.8
March 115.3 260.4 744
April 350.4 833.9 2,023.3
May 843.7 2,238.7 4,486.8
June 378.1 1,579.8 3,548
July 7 175.5 718.8
August 0.2 20.1 173.7
September 0 17.3 147.5
October 10.2 79 256.1
November 44 107.5 218.2
December 44.2 89.7 161.8

All values in cubic feet per second (cfs).

Common questions

When does Little Snake River near Lily, CO normally run highest?
May, on the long-term record. The median daily flow that month is about 2,238.7 cfs, against 17.3 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Little Snake River near Lily, CO?
It depends on the month. In January, half of days historically fall near 83.6 cfs, with the middle 80% of days between 46.8 and 159.3 cfs. The month-by-month table on this page gives the full range.
How long has Little Snake River near Lily, CO been measured?
Discharge records at USGS site 09260000 begin in 1921, about 105 years, covering roughly 9,195 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Little Snake River near Lily, CO?
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. 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 Little Snake River near Lily, CO?
The gauge sits at 40.54902, -108.42432, in Colorado, in hydrologic subbasin 14050003, at an elevation of about 5,708 feet, draining roughly 4,034 square miles.
Can I use Little Snake River near Lily, CO 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 Little Snake River

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

Other gauges in this subbasin