San Joaquin Marsh Weather

Elevation: 2 to 3 m (7 to 10 ft.) above sea level. 

Precipitation

• Average precipitation: 30 cm (12 in.) per year.
• Download seasonal and monthly total precipitation since 1961 (pdf file as recorded by the Costa Mesa station see map below)
• Orange County Historic Data web site   
• Upper Newport Bay Tidal Gauge
• USGS Hydrologic Unit 18070204 (Orange County, California)

• Weather Station: San Diego Crk. @ Campus
• Weather Station: COSTA MESA(COOP-165)
• UCNRS Dendra Weather Stations (other UCNRS sites)

Average Temperatures

September maximum: 29 ºC (86 ºF)
January minimum: 4 ºC (40 ºF)
Annual mean: 17 ºC (62 ºF)

Wunderground San Joaquin Marsh weather station