USGS Streamgage 11362500
Pit River below Pit No 4 Dam, CA
Pit River below Pit No 4 Dam, CA is USGS streamgage 11362500 in California, monitoring river discharge in hydrologic subbasin 18020003. It drains a watershed of about 4,648 square miles. Discharge records at this site go back to 1923. Typical flow runs near 190.9 cfs in July and 739.4 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 4,648 sq mi
- Subbasin (HUC-8)
- 18020003
- Coordinates
- 40.97349, -121.77944
- USGS site number
- 11362500
- Records begin
- 1923-01-17 (103 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 99 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 | 55.3 | 400.6 | 3,361 | |
| February | 57.7 | 774 | 4,612.1 | |
| March | 58.4 | 1,249.9 | 4,820 | |
| April | 107.5 | 739.4 | 4,203 | |
| May | 153.9 | 507.9 | 3,361 | |
| June | 149.6 | 228.9 | 2,466.7 | |
| July | 147.7 | 190.9 | 2,104.5 | |
| August | 147.6 | 192.1 | 1,996.8 | |
| September | 149 | 193.8 | 2,018.3 | |
| October | 99.8 | 199 | 2,126.5 | |
| November | 76.1 | 204.6 | 2,346.7 | |
| December | 55.4 | 258.1 | 2,646.8 |
All values in cubic feet per second (cfs).
Common questions
- When does Pit River below Pit No 4 Dam, CA normally run highest?
- March, on the long-term record. The median daily flow that month is about 1,249.9 cfs, against 190.9 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 Pit River below Pit No 4 Dam, CA?
- It depends on the month. In January, half of days historically fall near 400.6 cfs, with the middle 80% of days between 55.3 and 3,361 cfs. The month-by-month table on this page gives the full range.
- How long has Pit River below Pit No 4 Dam, CA been measured?
- Discharge records at USGS site 11362500 begin in 1923, about 103 years, covering roughly 8,821 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Pit River below Pit No 4 Dam, CA?
- The gauge sits at 40.97349, -121.77944, in California, in hydrologic subbasin 18020003, draining roughly 4,648 square miles.
- Can I use Pit River below Pit No 4 Dam, CA 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.
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