USGS Streamgage 11454210
Putah South Cn near Winters, CA
Putah South Cn near Winters, CA is USGS streamgage 11454210 in California, monitoring river discharge in hydrologic subbasin 18020162. Discharge records at this site go back to 1994. Typical flow runs near 576.3 cfs in July and 208 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- California
- Subbasin (HUC-8)
- 18020162
- Coordinates
- 38.49268, -122.00302
- USGS site number
- 11454210
- Records begin
- 1994-10-01 (32 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 31 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 | 31.6 | 53 | 65.9 | |
| February | 34.6 | 54.4 | 69.6 | |
| March | 44 | 75.4 | 218.5 | |
| April | 94.6 | 208 | 453.4 | |
| May | 246.8 | 410.1 | 564.5 | |
| June | 425.3 | 545.8 | 639.9 | |
| July | 477.4 | 576.3 | 649.9 | |
| August | 390.4 | 475.6 | 565.3 | |
| September | 278.4 | 346 | 411.3 | |
| October | 78 | 164.2 | 252.5 | |
| November | 17.7 | 35.3 | 71.8 | |
| December | 25.5 | 44.1 | 64.1 |
All values in cubic feet per second (cfs).
Common questions
- When does Putah South Cn near Winters, CA normally run highest?
- July, on the long-term record. The median daily flow that month is about 576.3 cfs, against 35.3 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 South Cn near Winters, CA?
- It depends on the month. In January, half of days historically fall near 53 cfs, with the middle 80% of days between 31.6 and 65.9 cfs. The month-by-month table on this page gives the full range.
- How long has Putah South Cn near Winters, CA been measured?
- Discharge records at USGS site 11454210 begin in 1994, about 32 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 Putah South Cn near Winters, CA?
- The gauge sits at 38.49268, -122.00302, in California, in hydrologic subbasin 18020162.
- Can I use Putah South Cn 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.