The Mesonet long-term averages utilize daily data (e.g. daily average, daily maximum/minimum, or daily total) for every current and past Oklahoma Mesonet station. For a station's data to be used in the graphs, at least 90% of the data must be valid during the respective period. Data from moved locations (e.g. "Norman - retired 2002" and "Norman") are not combined into a single station record.
For more information on each of the variables, please view the Mesonet Long-Term Averages Variables