USGS Streamgage 11454000
Putah C near Winters, CA
Putah C near Winters, CA is USGS streamgage 11454000 in California, monitoring river discharge in hydrologic subbasin 18020162. It drains a watershed of about 574 square miles. Discharge records at this site go back to 1930. Typical flow runs near 636.4 cfs in July and 408.3 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- California
- Drainage area
- 574 sq mi
- Gauge elevation
- 164 ft
- Subbasin (HUC-8)
- 18020162
- Coordinates
- 38.51516, -122.08188
- USGS site number
- 11454000
- Records begin
- 1930-06-28 (96 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 67 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 | 43.5 | 79.7 | 631.5 | |
| February | 43.4 | 86.9 | 2,079 | |
| March | 54.9 | 205.1 | 2,104.8 | |
| April | 159 | 408.3 | 1,138.1 | |
| May | 333.5 | 527.7 | 706.5 | |
| June | 431.1 | 613.2 | 727.8 | |
| July | 518.8 | 636.4 | 740 | |
| August | 435.5 | 543.7 | 646.8 | |
| September | 279.1 | 399.9 | 496.4 | |
| October | 87.5 | 208 | 361.6 | |
| November | 35.9 | 75.3 | 137.7 | |
| December | 34.4 | 75.5 | 120.4 |
All values in cubic feet per second (cfs).
Common questions
- When does Putah C near Winters, CA normally run highest?
- July, on the long-term record. The median daily flow that month is about 636.4 cfs, against 75.3 cfs in November, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Putah C near Winters, CA?
- It depends on the month. In January, half of days historically fall near 79.7 cfs, with the middle 80% of days between 43.5 and 631.5 cfs. The month-by-month table on this page gives the full range.
- How long has Putah C near Winters, CA been measured?
- Discharge records at USGS site 11454000 begin in 1930, about 96 years, covering roughly 9,125 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Putah C near Winters, CA?
- The gauge sits at 38.51516, -122.08188, in California, in hydrologic subbasin 18020162, at an elevation of about 164 feet, draining roughly 574 square miles.
- Can I use Putah C near Winters, 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.