USGS Streamgage 09397300
Little Colorado River near Joseph City, AZ
Little Colorado River near Joseph City, AZ is USGS streamgage 09397300 in Arizona, monitoring river discharge in hydrologic subbasin 15020008. It drains a watershed of about 12,384 square miles. Discharge records at this site go back to 1970. Typical flow runs near 255.1 cfs in July and 3.7 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Arizona
- Drainage area
- 12,384 sq mi
- Gauge elevation
- 5,031 ft
- Subbasin (HUC-8)
- 15020008
- Coordinates
- 34.90114, -110.2554
- USGS site number
- 09397300
- Records begin
- 1970-03-01 (56 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 53 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 | 0 | 89.4 | 2,947.9 | |
| February | 0 | 99.1 | 2,411.3 | |
| March | 0 | 177.3 | 1,242.9 | |
| April | 0 | 3.7 | 864 | |
| May | — | 0 | — | |
| June | — | 0 | — | |
| July | 0 | 255.1 | 1,944.9 | |
| August | 0.1 | 341.2 | 2,385 | |
| September | 0 | 215.5 | 2,140.9 | |
| October | 0 | 119.9 | 2,650.5 | |
| November | — | 14.7 | — | |
| December | 0 | 23.6 | 866.1 |
All values in cubic feet per second (cfs).
Common questions
- When does Little Colorado River near Joseph City, AZ normally run highest?
- August, on the long-term record. The median daily flow that month is about 341.2 cfs, against 0 cfs in May, 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 Colorado River near Joseph City, AZ?
- It depends on the month. In January, half of days historically fall near 89.4 cfs, with the middle 80% of days between 0 and 2,947.9 cfs. The month-by-month table on this page gives the full range.
- How long has Little Colorado River near Joseph City, AZ been measured?
- Discharge records at USGS site 09397300 begin in 1970, about 56 years, covering roughly 2,283 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Little Colorado River near Joseph City, AZ?
- The gauge sits at 34.90114, -110.2554, in Arizona, in hydrologic subbasin 15020008, at an elevation of about 5,031 feet, draining roughly 12,384 square miles.
- Can I use Little Colorado River near Joseph City, 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.