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Air Dispersion Meteorological Data

The measurements of wind speed and direction, temperature, humidity, rainfall, barometric pressure, ultraviolet radiation and solar radiation are used in the study of air quality monitoring results, and to further understand the chemical reactions that occur in the atmosphere. Meteorological monitoring is used to predict air pollution events, high pollutant concentration days and to simulate and predict air quality using computer models. Continuous data is available:

Key for Counties Map

Most Recent Five-Year Meteorological Data

For archived historical meteorological data contact the Office of Air Quality.