IrvineWeather.info

National Temperature Extremes
High Sat: 87°F at Kingsville & McAllen, TX   
Low Sat: 6°F at Boca & Truckee, CA; Hettinger, ND

Rain Sentinel
   Date of Last Measurable Rainfall: 3/7/10

Monthy Rain: 0.27 in.
Normal Rain Month to Date: 0.42 in.
Total Rain So Far This Year:  10.44 in.*
Last Year's Total Rain:  7.39 in.*
*Total rain is based on the California Rain Year, which runs from July 1 to June 30.
Normal Seasonal Rain is 12.82 inches.

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  Thousand Palms, CA

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MADIS ID: D0553
CWOP ID: DW0553
WUnderground.com ID: KCAIRVIN4
Weatherforyou.com ID: KCAIRVIN1

MADIS QC Analysis Rating: 99.0%  (Running 52-week average of temperature,
barometric pressure, dew point and humidity analysis.)

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This site reports weather observed at the Rancho San Joaquin and University Park villages of Irvine, California. We are not affilliated with the Rancho San Joaquin Golf Course, the Rancho San Joaquin Homeowner's Association nor Rancho San Joaquin Apartments.

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Reference









STATION COORDINATES:

Latitude: 33.66289
Longitude: -117.83017

ELEVATION: 72' above sea level

GLOSSARY:

Ceiling: The height ascribed to the lowest layer of clouds or obscuring phenomena when it is reported as broken, overcast, or obscuration and not classified as "thin" or "partial." The ceiling is termed unlimited when these conditions are not satisfied.

Cloud Base: For a given cloud or layer, the lowest level in the atmosphere at which the air contains a perceptible quantity of cloud particles.

Comfort Level: Calculates the body's reaction to heat, cold, humidity and wind chill.

Density Altitude: A term to describe how dense the atmosphere is in comparison to the International Standard Atmosphere. The datum point for ISA is 59 degrees Fahrenheit (15°C), with a pressure of 29.92 inches of mercury (1013mb) at sea level.

Heat Stress: Calculates the body's reaction to heat and humidity. High temperatures and humidity stress the body's ability to cool itself, and heat illness becomes a special concern during hot weather.

Pressure Altitude: Atmospheric or barometric pressure expressed in terms of altitude which corresponds to that pressure in the standard atmosphere.

Total Rain: Based on the California Water Year, which runs from July 1 through June 30.

Vapor Pressure: The pressure exerted by water vapor molecules in a given volume of air.

Virtual Temperature: The temperature dry air would have if its pressure and specific volume were equal to those of a given sample of moist air. Virtual temperature allows meteorologists to use the equation of state for dry air even though moisture is present.

Wind Run: The total distance in miles that the air has traveled past a measuring point during a 24 hour period. This is a good indicaton of how windy a day has been. The coastal Irvine area, with its typical southwesterly sea breezes, will usually have a wind run of about 28-32 miles per day. Especially windy days (such as a Santa Ana wind condition) will result in higher wind run values.