FROST Station : PORTLAND SEWAGE PLANT, TN7359 Start yr. - 1961 End yr. - 1990 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 = 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 4 | April 10 | April 29 | | | 2 year in 10 later than-- | March 29 | April 5 | April 23 | | | 5 year in 10 later than-- | March 17 | March 28 | April 11 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 28 | October 11 | October 2 | | | 2 yr in 10 earlier than-- | November 3 | October 18 | October 7 | | | 5 yr in 10 earlier than-- | November 14 | October 31 | October 17 | | | ------------------------------------------------------------------------