FROST Station : PRYOR 6 N, OK7309 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: 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 = 22, 28 deg = 22, 32 deg = 23 Fall: 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 = 21, 28 deg = 22, 32 deg = 22 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | April 1 | April 12 | April 22 | | | 2 year in 10 later than-- | March 27 | April 7 | April 17 | | | 5 year in 10 later than-- | March 17 | March 27 | April 7 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | November 1 | October 21 | October 12 | | | 2 yr in 10 earlier than-- | November 7 | October 27 | October 17 | | | 5 yr in 10 earlier than-- | November 20 | November 6 | October 25 | | | ------------------------------------------------------------------------ FROST Station : SPAVINAW, OK8380 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 28 Spring: Years of missing data 24 deg = 4, 28 deg = 3, 32 deg = 3 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 26, 28 deg = 27, 32 deg = 27 Fall: Years of missing data 24 deg = 3, 28 deg = 3, 32 deg = 3 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 27, 28 deg = 27, 32 deg = 27 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | March 31 | April 5 | April 15 | | | 2 year in 10 later than-- | March 25 | March 31 | April 11 | | | 5 year in 10 later than-- | March 15 | March 23 | April 4 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | November 8 | October 30 | October 18 | | | 2 yr in 10 earlier than-- | November 14 | November 4 | October 23 | | | 5 yr in 10 earlier than-- | November 25 | November 14 | November 3 | | | ------------------------------------------------------------------------