FROST Station : DE KALB, IL2223 Start yr. - 1971 End yr. - 2000 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 3, 28 deg = 3, 32 deg = 3 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 27, 28 deg = 27, 32 deg = 27 Fall: Years of missing data 24 deg = 4, 28 deg = 4, 32 deg = 4 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 26, 28 deg = 26, 32 deg = 26 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | April 21 | May 1 | May 15 | | | 2 year in 10 later than-- | April 16 | April 26 | May 9 | | | 5 year in 10 later than-- | April 6 | April 16 | April 28 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 17 | October 5 |September 26 | | | 2 yr in 10 earlier than-- | October 22 | October 11 |September 30 | | | 5 yr in 10 earlier than-- | November 2 | October 23 | October 9 | | | ------------------------------------------------------------------------