FROST Station : SPARTA 3 N, IL8147 Start yr. - 1971 End yr. - 2000 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 2, 28 deg = 2, 32 deg = 2 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 28, 28 deg = 28, 32 deg = 28 Fall: Years of missing data 24 deg = 1, 28 deg = 1, 32 deg = 1 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 29, 28 deg = 29, 32 deg = 29 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | April 9 | April 15 | April 24 | | | 2 year in 10 later than-- | April 3 | April 10 | April 19 | | | 5 year in 10 later than-- | March 23 | March 31 | April 10 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 30 | October 19 | October 2 | | | 2 yr in 10 earlier than-- | November 4 | October 25 | October 8 | | | 5 yr in 10 earlier than-- | November 15 | November 3 | October 18 | | | ------------------------------------------------------------------------