FROST Station : FORT YATES, ND3207 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 = 1, 32 deg = 1 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 28, 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 = 0, 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-- | May 1 | May 15 | May 22 | | | 2 year in 10 later than-- | April 25 | May 10 | May 17 | | | 5 year in 10 later than-- | April 14 | April 29 | May 7 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 2 |September 24 |September 12 | | | 2 yr in 10 earlier than-- | October 7 |September 29 |September 18 | | | 5 yr in 10 earlier than-- | October 18 | October 10 |September 29 | | | ------------------------------------------------------------------------