FROST Station : GRAND FORKS FAA AP, ND3616 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 = 0, 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 = 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-- | May 2 | May 18 | June 5 | | | 2 year in 10 later than-- | April 26 | May 11 | May 29 | | | 5 year in 10 later than-- | April 15 | April 29 | May 16 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 26 |September 21 |September 2 | | | 2 yr in 10 earlier than-- | October 2 |September 26 |September 7 | | | 5 yr in 10 earlier than-- | October 13 | October 6 |September 18 | | | ------------------------------------------------------------------------ FROST Station : GRAND FORKS UNIVERSITY, ND3621 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 6, 28 deg = 5, 32 deg = 4 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 24, 28 deg = 25, 32 deg = 26 Fall: Years of missing data 24 deg = 2, 28 deg = 2, 32 deg = 2 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 28, 28 deg = 28, 32 deg = 28 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | May 10 | May 17 | May 28 | | | 2 year in 10 later than-- | May 4 | May 12 | May 23 | | | 5 year in 10 later than-- | April 21 | May 2 | May 13 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 28 |September 22 |September 15 | | | 2 yr in 10 earlier than-- | October 5 |September 27 |September 18 | | | 5 yr in 10 earlier than-- | October 16 | October 8 |September 26 | | | ------------------------------------------------------------------------ FROST Station : LARIMORE 3 NW, ND5013 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 26 Spring: Years of missing data 24 deg = 7, 28 deg = 7, 32 deg = 6 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 23, 28 deg = 23, 32 deg = 24 Fall: Years of missing data 24 deg = 7, 28 deg = 7, 32 deg = 7 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 23, 28 deg = 23, 32 deg = 23 ------------------------------------------------------------------------ | 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 | May 31 | | | 2 year in 10 later than-- | May 7 | May 17 | May 26 | | | 5 year in 10 later than-- | April 23 | May 5 | May 16 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 27 |September 18 |September 8 | | | 2 yr in 10 earlier than-- | October 3 |September 24 |September 13 | | | 5 yr in 10 earlier than-- | October 14 | October 6 |September 24 | | | ------------------------------------------------------------------------ FROST Station : GRAND FORKS FAA AP, ND3616 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 = 0, 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 = 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-- | May 2 | May 18 | June 5 | | | 2 year in 10 later than-- | April 26 | May 11 | May 29 | | | 5 year in 10 later than-- | April 15 | April 29 | May 16 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 26 |September 21 |September 2 | | | 2 yr in 10 earlier than-- | October 2 |September 26 |September 7 | | | 5 yr in 10 earlier than-- | October 13 | October 6 |September 18 | | | ------------------------------------------------------------------------ FROST Station : GRAND FORKS UNIVERSITY, ND3621 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 6, 28 deg = 5, 32 deg = 4 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 24, 28 deg = 25, 32 deg = 26 Fall: Years of missing data 24 deg = 2, 28 deg = 2, 32 deg = 2 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 28, 28 deg = 28, 32 deg = 28 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | May 10 | May 17 | May 28 | | | 2 year in 10 later than-- | May 4 | May 12 | May 23 | | | 5 year in 10 later than-- | April 21 | May 2 | May 13 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 28 |September 22 |September 15 | | | 2 yr in 10 earlier than-- | October 5 |September 27 |September 18 | | | 5 yr in 10 earlier than-- | October 16 | October 8 |September 26 | | | ------------------------------------------------------------------------ FROST Station : LARIMORE 3 NW, ND5013 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 26 Spring: Years of missing data 24 deg = 7, 28 deg = 7, 32 deg = 6 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 23, 28 deg = 23, 32 deg = 24 Fall: Years of missing data 24 deg = 7, 28 deg = 7, 32 deg = 7 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 23, 28 deg = 23, 32 deg = 23 ------------------------------------------------------------------------ | 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 | May 31 | | | 2 year in 10 later than-- | May 7 | May 17 | May 26 | | | 5 year in 10 later than-- | April 23 | May 5 | May 16 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 27 |September 18 |September 8 | | | 2 yr in 10 earlier than-- | October 3 |September 24 |September 13 | | | 5 yr in 10 earlier than-- | October 14 | October 6 |September 24 | | | ------------------------------------------------------------------------