FROST Station : WILBURTON 9 ENE, OK9634 Start yr. - 1961 End yr. - 1987 Requested years of data: 27 Available years of data: 25 Spring: Years of missing data 24 deg = 9, 28 deg = 8, 32 deg = 8 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 18, 28 deg = 19, 32 deg = 19 Fall: Years of missing data 24 deg = 8, 28 deg = 8, 32 deg = 7 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 19, 28 deg = 19, 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 27 | April 11 | April 23 | | | 2 year in 10 later than-- | March 22 | April 6 | April 17 | | | 5 year in 10 later than-- | March 12 | March 28 | April 6 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | November 1 | October 18 | October 8 | | | 2 yr in 10 earlier than-- | November 7 | October 24 | October 13 | | | 5 yr in 10 earlier than-- | November 18 | November 4 | October 22 | | | ------------------------------------------------------------------------