USGS Streamgage 09415000
Virgin River at Littlefield, AZ
Virgin River at Littlefield, AZ is USGS streamgage 09415000 in Arizona, monitoring river discharge in hydrologic subbasin 15010010. It drains a watershed of about 5,090 square miles. Discharge records at this site go back to 1929. Typical flow runs near 68.9 cfs in July and 224.6 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Arizona
- Drainage area
- 5,090 sq mi
- Gauge elevation
- 1,764 ft
- Subbasin (HUC-8)
- 15010010
- Coordinates
- 36.89164, -113.92441
- USGS site number
- 09415000
- Records begin
- 1929-10-01 (97 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 97 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 130 | 189.9 | 303.2 | |
| February | 126.2 | 204.4 | 409.9 | |
| March | 105.6 | 205.5 | 648.9 | |
| April | 72.6 | 224.6 | 1,043.8 | |
| May | 63 | 171.2 | 1,271.9 | |
| June | 55.2 | 71.7 | 361.9 | |
| July | 54.5 | 68.9 | 185.5 | |
| August | 56.7 | 80.6 | 304.6 | |
| September | 57.6 | 82.9 | 241.8 | |
| October | 71.9 | 112 | 236.8 | |
| November | 107.6 | 154.8 | 262.7 | |
| December | 125.2 | 176.3 | 284.5 |
All values in cubic feet per second (cfs).
Common questions
- When does Virgin River at Littlefield, AZ normally run highest?
- April, on the long-term record. The median daily flow that month is about 224.6 cfs, against 68.9 cfs in July, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Virgin River at Littlefield, AZ?
- It depends on the month. In January, half of days historically fall near 189.9 cfs, with the middle 80% of days between 130 and 303.2 cfs. The month-by-month table on this page gives the full range.
- How long has Virgin River at Littlefield, AZ been measured?
- Discharge records at USGS site 09415000 begin in 1929, about 97 years, covering roughly 9,113 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Virgin River at Littlefield, AZ?
- The gauge sits at 36.89164, -113.92441, in Arizona, in hydrologic subbasin 15010010, at an elevation of about 1,764 feet, draining roughly 5,090 square miles.
- Can I use Virgin River at Littlefield, AZ 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.