Waterlands
San Gregorio C A San Gregorio Ca River
USGS · 11162570
SAN GREGORIO C A SAN GREGORIO CA RIVER
USGS · 11162570LIVE

SAN GREGORIO C A SAN GREGORIO CA

SAN MATEO COUNTY, CA37.3257°N, -122.3866°W Updated 15 hr ago
FLOW RATE
5cfs
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 YEAR
5cfs 9.4% vs avg
Optimal band: 79 cfs
PERIOD HIGH
1,072cfs
PERIOD LOW
2cfs
RUNNABLE
6%
last 1 year in band
Precipitation History
Your History · SAN GREGORIO C A SAN GREGORIO CA

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Station Location

37.3257, -122.3866
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DATA · USGS · NOAA · NWSUPDATED 2026-07-06 00:00 UTC
Site #11162570·USGS

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