FROST Station : COLLEGE OBSERVATORY, AK2107 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 = 0, 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 = 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 11 | May 22 | June 8 | | | 2 year in 10 later than-- | May 7 | May 19 | June 4 | | | 5 year in 10 later than-- | April 28 | May 12 | May 26 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 11 | August 24 | August 14 | | | 2 yr in 10 earlier than-- |September 16 | August 30 | August 20 | | | 5 yr in 10 earlier than-- |September 25 |September 10 | August 30 | | | ------------------------------------------------------------------------ FROST Station : COLLEGE UNIV EXP STN, AK9641 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 = 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 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 19 | May 30 | June 9 | | | 2 year in 10 later than-- | May 13 | May 24 | June 5 | | | 5 year in 10 later than-- | May 2 | May 14 | May 29 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 12 | August 23 | August 18 | | | 2 yr in 10 earlier than-- |September 16 | August 28 | August 22 | | | 5 yr in 10 earlier than-- |September 24 |September 7 | August 30 | | | ------------------------------------------------------------------------ FROST Station : EIELSON FIELD, AK2707 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 4, 28 deg = 4, 32 deg = 4 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 26, 28 deg = 26, 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 8 | May 14 | May 25 | | | 2 year in 10 later than-- | May 4 | May 11 | May 22 | | | 5 year in 10 later than-- | April 26 | May 4 | May 15 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 13 | August 28 | August 21 | | | 2 yr in 10 earlier than-- |September 17 |September 2 | August 25 | | | 5 yr in 10 earlier than-- |September 27 |September 12 |September 2 | | | ------------------------------------------------------------------------ FROST Station : FAIRBANKS WSO AIRPORT, AK2968 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 1 | May 13 | May 25 | | | 2 year in 10 later than-- | April 28 | May 9 | May 22 | | | 5 year in 10 later than-- | April 22 | May 2 | May 15 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 15 |September 6 | August 22 | | | 2 yr in 10 earlier than-- |September 19 |September 11 | August 27 | | | 5 yr in 10 earlier than-- |September 28 |September 20 |September 5 | | | ------------------------------------------------------------------------ FROST Station : NORTH POLE, AK6581 Start yr. - 1969 End yr. - 1990 Requested years of data: 22 Available years of data: 22 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 = 22, 28 deg = 22, 32 deg = 22 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 = 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 16 | June 2 | July 1 | | | 2 year in 10 later than-- | May 12 | May 29 | June 22 | | | 5 year in 10 later than-- | May 5 | May 20 | June 6 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | August 22 | August 18 | August 10 | | | 2 yr in 10 earlier than-- | August 28 | August 22 | August 14 | | | 5 yr in 10 earlier than-- |September 9 | August 30 | August 21 | | | ------------------------------------------------------------------------