FROST Station : HARRISBURG FAA AP, PA3699 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: 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 = 30, 28 deg = 30, 32 deg = 30 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 = 30, 28 deg = 30, 32 deg = 30 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | April 2 | April 10 | April 26 | | | 2 year in 10 later than-- | March 29 | April 6 | April 22 | | | 5 year in 10 later than-- | March 20 | March 30 | April 14 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | November 3 | October 22 | October 7 | | | 2 yr in 10 earlier than-- | November 9 | October 27 | October 13 | | | 5 yr in 10 earlier than-- | November 22 | November 7 | October 25 | | | ------------------------------------------------------------------------