FROST Station : DECATUR, IL2193 Start yr. - 1971 End yr. - 2000 Requested years of data: 30 Available years of data: 30 Spring: 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 Fall: 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 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | April 15 | April 21 | May 12 | | | 2 year in 10 later than-- | April 10 | April 17 | May 6 | | | 5 year in 10 later than-- | April 1 | April 9 | April 23 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 15 | October 7 |September 25 | | | 2 yr in 10 earlier than-- | October 21 | October 12 |September 30 | | | 5 yr in 10 earlier than-- | November 1 | October 22 | October 10 | | | ------------------------------------------------------------------------