FROST Station : ST LOUIS SCIENCE CENTER, MO7452 Start yr. - 1968 End yr. - 1990 Requested years of data: 23 Available years of data: 15 Spring: Years of missing data 24 deg = 12, 28 deg = 12, 32 deg = 12 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 11, 28 deg = 11, 32 deg = 11 Fall: Years of missing data 24 deg = 12, 28 deg = 12, 32 deg = 12 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 11, 28 deg = 11, 32 deg = 11 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | March 30 | April 9 | April 14 | | | 2 year in 10 later than-- | March 23 | April 3 | April 11 | | | 5 year in 10 later than-- | March 9 | March 22 | April 5 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | November 8 | November 2 | October 26 | | | 2 yr in 10 earlier than-- | November 12 | November 6 | October 29 | | | 5 yr in 10 earlier than-- | November 19 | November 14 | November 5 | | | ------------------------------------------------------------------------