San Joaquin River at Patterson

Last updated: Jul 23, 2025, 4:45 AM UTC
No watches, warnings or advisories are in effect for this area.

Flood Impacts 🅘

  • 58.3 - Stages above 58.3 feet result in flooding outside the levee. Top of levee.

Gauge Info

Coordinates 37.4939, -121.081
RFC CNRFC
State CA
WFO STO
County Stanislaus
Data Provider(s)
State of California / Department of Water Resources DWR CDEC ID: SJP

Gauge Location

Recent Crests

1. 41.64 ft on 03-07-2024
2. 52.24 ft on 03-27-2023
3. 33.41 ft on 12-31-2021
4. 34.50 ft on 02-01-2021
5. 37.54 ft on 09-30-2019

Historic Crests

1. 52.24 ft on 03-27-2023
2. 51.71 ft on 02-22-2017
3. 51.26 ft on 03-04-1983
4. 50.97 ft on 04-10-2006
5. 50.57 ft on 02-25-1980

Vertical Datum Table

type NGVD29
major Flooding 58.30 ft
moderate Flooding 57.30 ft
minor Flooding 54.70 ft
action 48.00 ft
Latest Value 30.35 ft
Gauge Zero 0.00 ft

Gauge Photos

Photo 1 of 3

Looking downstream.

Probability Information

No Images Available

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

WFO Information

Weather Forecast Office
Sacramento
3310 El Camino Ave Ste 228
Sacramento, CA 95821
Official Homepage