FROST Station : FOREST GROVE, OR2997 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 1, 28 deg = 1, 32 deg = 1 Years with no occurrence 24 deg = 1, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 29, 28 deg = 29, 32 deg = 29 Fall: Years of missing data 24 deg = 1, 28 deg = 1, 32 deg = 1 Years with no occurrence 24 deg = 1, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 29, 28 deg = 29, 32 deg = 29 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | March 2 | April 13 | May 13 | | | 2 year in 10 later than-- | February 22 | April 3 | May 6 | | | 5 year in 10 later than-- | February 3 | March 16 | April 24 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | November 4 | October 19 |September 30 | | | 2 yr in 10 earlier than-- | November 16 | October 28 | October 7 | | | 5 yr in 10 earlier than-- | December 7 | November 12 | October 20 | | | ------------------------------------------------------------------------ FROST Station : HILLSBORO, OR3908 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 = 1, 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 = 1, 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-- | February 28 | April 17 | May 19 | | | 2 year in 10 later than-- | February 17 | April 3 | May 11 | | | 5 year in 10 later than-- | January 26 | March 7 | April 25 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | November 9 | October 19 |September 27 | | | 2 yr in 10 earlier than-- | November 22 | October 29 | October 6 | | | 5 yr in 10 earlier than-- | December 17 | November 16 | October 22 | | | ------------------------------------------------------------------------