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Weekly Water Conditions in Santa Cruz
Hydrologic data is reported for the current Water Year 2026 (Oct. 1 - Sept. 30). The information on this page is updated weekly. For current weather forecasts and rainfall accumulation, we suggest the following websites:
- For weather, visit NOAA
- For 24-hour rainfall reports, visit NOAA precipitation maps
Rainfall, reservoir level, streamflow, and water production information is reported for the seven-day period ending on 10/19/2025.
Seasonal Rainfall in Santa Cruz (in inches)
Rainfall statistics are reported from the CIMIS weather station #104 at DeLaveaga.
| Precipitation: | 1.28 |
| Season to date: | 1.80 |
| Average season to date: | 0.73 |
Cumulative Precipitation Chart
Seasonal Rainfall at the Loch Lomond Reservoir (in inches)
| Precipitation: | 2.08 |
| Season to date: | 2.62 |
Water Level at Loch Lomond Reservoir
(in feet above mean sea level; lake spills at 577.15 feet)
| Currently: | 573.05 |
| Percent of capacity: |
92.4 |
San Lorenzo River Streamflow
USGS Stream Gauge in Santa Cruz
Average Daily Water Production (in million gallons per day)
| For the past week: |
6.5 mgd |
Please submit questions regarding the posted watershed hydrologic data to the webpage administrator at mtarian@santacruzca.gov
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