FROST Station : HEPPNER, OR3827 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 = 1 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 28, 28 deg = 28, 32 deg = 29 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 22 | May 9 | May 22 | | | 2 year in 10 later than-- | April 12 | May 2 | May 17 | | | 5 year in 10 later than-- | March 23 | April 18 | May 8 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 21 |September 30 |September 20 | | | 2 yr in 10 earlier than-- | October 29 | October 7 |September 25 | | | 5 yr in 10 earlier than-- | November 14 | October 20 | October 5 | | | ------------------------------------------------------------------------