Monthly average data files These files contain monthly averaged data over 5, 10, 15, or 60 minute intervals, for each month of a year. They are similar to the archival (short interval) data files except that the data line starts with the month of the year and the second number is the time interval. The flags used for monthly average data files are the number of days in the month used to obtain the monthly average value. © 2022, UO Solar Radiation Monitoring Laboratory. Last revised: April 4, 2022. Top of page Site map Solar data Instruments Publications Home page Search About our data Software tools Sponsors Contact us Monitoring stations Educational material Home page URL: solardata.uoregon.edu