FROST Station : SMITHLAND LOCK & DAM, IL8020 Start yr. - 1981 End yr. - 2000 Requested years of data: 20 Available years of data: 20 Spring: 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 = 19, 28 deg = 19, 32 deg = 19 Fall: Years of missing data 24 deg = 0, 28 deg = 0, 32 deg = 0 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 20, 28 deg = 20, 32 deg = 20 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | March 28 | April 15 | April 19 | | | 2 year in 10 later than-- | March 22 | April 10 | April 16 | | | 5 year in 10 later than-- | March 11 | March 31 | April 9 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 28 | October 24 | October 10 | | | 2 yr in 10 earlier than-- | November 4 | October 29 | October 16 | | | 5 yr in 10 earlier than-- | November 18 | November 7 | October 27 | | | ------------------------------------------------------------------------