FROST Station : FESSENDEN, ND2949 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 28 Spring: Years of missing data 24 deg = 6, 28 deg = 6, 32 deg = 6 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 24, 28 deg = 24, 32 deg = 24 Fall: Years of missing data 24 deg = 8, 28 deg = 8, 32 deg = 8 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 22, 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-- | May 11 | May 17 | May 30 | | | 2 year in 10 later than-- | May 6 | May 13 | May 24 | | | 5 year in 10 later than-- | April 26 | May 4 | May 14 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 28 |September 17 |September 3 | | | 2 yr in 10 earlier than-- | October 3 |September 22 |September 9 | | | 5 yr in 10 earlier than-- | October 12 | October 3 |September 20 | | | ------------------------------------------------------------------------ FROST Station : HURDSFIELD 8 SW, ND4343 Start yr. - 1962 End yr. - 1990 Requested years of data: 29 Available years of data: 29 Spring: Years of missing data 24 deg = 8, 28 deg = 7, 32 deg = 6 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 21, 28 deg = 22, 32 deg = 23 Fall: Years of missing data 24 deg = 3, 28 deg = 2, 32 deg = 2 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 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | May 15 | May 24 | June 5 | | | 2 year in 10 later than-- | May 10 | May 19 | May 30 | | | 5 year in 10 later than-- | May 1 | May 11 | May 19 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 18 |September 11 | August 30 | | | 2 yr in 10 earlier than-- |September 24 |September 16 |September 4 | | | 5 yr in 10 earlier than-- | October 5 |September 26 |September 13 | | | ------------------------------------------------------------------------