FROST Station : SILVERTON, CO7656 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 29 Spring: Years of missing data 24 deg = 5, 28 deg = 5, 32 deg = 5 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 25, 28 deg = 25, 32 deg = 25 Fall: Years of missing data 24 deg = 7, 28 deg = 5, 32 deg = 5 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 23, 28 deg = 25, 32 deg = 25 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | June 29 | July 20 | July 31 | | | 2 year in 10 later than-- | June 21 | July 13 | July 26 | | | 5 year in 10 later than-- | June 7 | June 29 | July 16 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | August 26 | August 7 | July 29 | | | 2 yr in 10 earlier than-- |September 2 | August 14 | August 4 | | | 5 yr in 10 earlier than-- |September 16 | August 26 | August 15 | | | ------------------------------------------------------------------------