USGS Streamgage 09368000
San Juan River at Shiprock, NM
San Juan River at Shiprock, NM is USGS streamgage 09368000 in New Mexico, monitoring river discharge in hydrologic subbasin 14080105. It drains a watershed of about 12,900 square miles. Discharge records at this site go back to 1928. Typical flow runs near 1,199.9 cfs in July and 1,744.3 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- New Mexico
- Drainage area
- 12,900 sq mi
- Gauge elevation
- 4,886 ft
- Subbasin (HUC-8)
- 14080105
- Coordinates
- 36.77667, -108.68306
- USGS site number
- 09368000
- Records begin
- 1928-05-31 (98 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 90 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 | 479.3 | 765.7 | 2,067.1 | |
| February | 520.3 | 843 | 2,280 | |
| March | 560.6 | 1,080.9 | 3,059 | |
| April | 504.5 | 1,744.3 | 6,219.7 | |
| May | 983.2 | 3,484.8 | 8,594.2 | |
| June | 966.5 | 3,823.3 | 9,950.3 | |
| July | 345.2 | 1,199.9 | 4,924.8 | |
| August | 246.7 | 826.9 | 2,761.9 | |
| September | 287 | 734.3 | 2,573 | |
| October | 429.5 | 825.6 | 2,148.7 | |
| November | 527.1 | 800.2 | 1,950 | |
| December | 493 | 763.7 | 1,979 |
All values in cubic feet per second (cfs).