About This Weather Station

This is a privately owned weather station serving Mission Trails and the surrounding areas of San Diego California.

This station installed a new Davis Instruments Vantage Pro2 with fan aspirated temperature and humidity on April 20, 2016. Data is collected every 2.5 seconds and sent to our server every 10 seconds. Full web site updates occur every 5 minutes. This site and its data is collected using Weather Display Software.

The station comprises of an anemometer, rain gauge and a thermo-hydro sensor situated in optimal positions for highest accuracy possible.

About The Weather Forecasts

The National Weather Service describes four climates in San Diego County: Coastal, Inland Valleys, Mountains and Deserts. The Mission Trails area is located within the Inland Valleys Zone and is usually denoted by "Western Valleys". Its National Weather Service Forecast Code is CAZ050. National Weather Service Forecast are also displayed for the Mission Trails Region. Forecasts can also be found for most locations and areas of interest in San Diego County (see Forecasts > National Weather Service).

WXSim Forecasts

We have used Wxsim Forecast software for over 20 years at this station and have included its forecasts on our site. Wxsim forecasts have proven to be very accurate especially in the first 48 hours. Forecasts are updated 4 times daily. Wxsim uses past and current weather data from Mission Trails and surrounding airport stations and upper air temperature patterns. In addition this forecast takes into account sea breezes caused by the relatively cool adjacent Pacific Ocean. FOUS (Forecast US), GFS (Global Forecast System) and ECMWF (European Forecast Model) weather computer models are also inputed to arrive at the forecast solution.

This stations data is supplied to the following weather websites:

About San Diego, California

San Diego is just 20 miles north of Mexico, situated in the rolling hills and mesas that rise from the Pacific shore to join with the Laguna Mountains to the east. Its bay is one of the country's finest natural harbors. The city covers a large area of vastly different terrain: miles of ocean and bay shoreline, densely forested hills, fertile valleys, and mountains, canyons, and desert. The climate varies in a similar manner. On the coast, the temperatures are mild and constant, while in the desert areas, the temperature can fluctuate as much as 30 degrees in one day. San Diego is about 120 miles south of Los Angeles.

The climate in San Diego is tempered by the Pacific Ocean air, keeping the summers cool and the winters warm. Severe weather is rare in the area; snow is almost unknown, and the city averages only three thunderstorms a year. September and October often bring hot eastern winds from the desert, producing what are usually the hottest days of the year.

Area: 324.3 square miles (2000)

Elevation: Ranges from sea level to 1,591 feet above sea level

Average Temperatures: January, 55.4 F; August, 72.2 F; annual average, 63.2 F

Average Annual Precipitation: 9.32 inches

About The Mission Trails Area

This personal weather station is located within one-half mile of the Visitor's Center at Mission Trails Regional Park in San Diego, California.

Mission Trails Regional Park encompasses nearly 5,800 acres of both natural and developed recreational acres. Its rugged hills, valleys and open areas represent a San Diego prior to the landing of Cabrillo in San Diego Bay in 1542. Centrally located and only eight miles northeast of downtown San Diego, Mission Trails Regional Park provides a quick, natural escape from the urban hustle and bustle.

Started in 1974, Mission Trails Regional Park has become one of the largest urban parks in the United States. The Park contains over 50 miles of hiking, mountain biking and equestrian trails, boating on Lake Murray, and a state-of-the-art Visitor's Center. Originally used by the Kumeyaay, the park is the site of the Old Mission Dam, built to store water for the Mission San Diego de Alcala.

Campgrounds are available at the park, campers have their choice of 46 primitive (no water or electricity) sites for tents or recreational vehicles. Each site contains picnic and food preparation tables, a fire box, tent pad, and parking space with water, bathrooms and hot showers provided nearby.

Lake Murray is very popular for bicycling, jogging, walking, rollerblading, and picnicking. The reservoir has large mouth bass, bluegill, channel catfish, black crappie and trout (stocked November-May).

About This Website

Credits and special thanks to the following for their programming and/or web development insight:

Ken  at Saratoga-Weather.org ... Ken's php scripts and unique contributions to weather web-sites has greatly improved countless sites.
Tom at Carter Lake.org ... Tom originated the many of the templates and php scripts seen on these pages.

Also thanks to all members of Weather-Display, Ambient Weather and Southwestern Weather forums for the wealth of information and coding samples.

This site is a template design by CarterLake.org. Special thanks go to Kevin Reed at TNET Weather.

Template is originally based on Designs by Haran.

Cloud base and thermometer graphics courtesy of Bashewa Weather.

Fire Weather Calculations and Graphs courtesy of FWI CALC.

This template is XHTML 1.0 compliant. Validate the XHTML and CSS of this page.