FROST Station : BIG DELTA FAA/AMOS AP, AK0770 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 = 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 26 | June 1 | June 10 | | | 2 year in 10 later than-- | May 18 | May 25 | June 3 | | | 5 year in 10 later than-- | May 2 | May 11 | May 21 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 13 | August 26 | August 20 | | | 2 yr in 10 earlier than-- |September 17 |September 1 | August 24 | | | 5 yr in 10 earlier than-- |September 25 |September 12 |September 1 | | | ------------------------------------------------------------------------ FROST Station : CLEARWATER, AK2019 Start yr. - 1965 End yr. - 1990 Requested years of data: 26 Available years of data: 26 Spring: Years of missing data 24 deg = 3, 28 deg = 3, 32 deg = 3 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 Fall: Years of missing data 24 deg = 4, 28 deg = 3, 32 deg = 3 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 22, 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 28 | June 29 | July 28 | | | 2 year in 10 later than-- | May 23 | June 20 | July 18 | | | 5 year in 10 later than-- | May 15 | June 4 | June 28 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | August 16 | August 9 | August 2 | | | 2 yr in 10 earlier than-- | August 21 | August 14 | August 5 | | | 5 yr in 10 earlier than-- | August 30 | August 22 | August 12 | | | ------------------------------------------------------------------------ FROST Station : NABESNA, AK6147 Start yr. - 1967 End yr. - 1990 Requested years of data: 24 Available years of data: 13 Spring: Years of missing data 24 deg = 14, 28 deg = 14, 32 deg = 14 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 10, 28 deg = 10, 32 deg = 10 Fall: Years of missing data 24 deg = 13, 28 deg = 13, 32 deg = 13 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 11, 28 deg = 11, 32 deg = 11 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | June 10 | June 15 | June 30 | | | 2 year in 10 later than-- | June 3 | June 9 | June 26 | | | 5 year in 10 later than-- | May 20 | May 30 | June 19 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | August 24 | August 14 | August 7 | | | 2 yr in 10 earlier than-- | August 28 | August 17 | August 11 | | | 5 yr in 10 earlier than-- |September 4 | August 24 | August 18 | | | ------------------------------------------------------------------------ FROST Station : NORTHWAY FAA AIRPORT, AK6586 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 = 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 13 | May 21 | June 18 | | | 2 year in 10 later than-- | May 11 | May 19 | June 11 | | | 5 year in 10 later than-- | May 5 | May 13 | May 30 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 1 | August 21 | August 16 | | | 2 yr in 10 earlier than-- |September 6 | August 26 | August 20 | | | 5 yr in 10 earlier than-- |September 15 |September 3 | August 28 | | | ------------------------------------------------------------------------ FROST Station : TOK, AK9313 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 8, 28 deg = 7, 32 deg = 5 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 22, 28 deg = 23, 32 deg = 25 Fall: 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 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | June 18 | July 22 | August 4 | | | 2 year in 10 later than-- | June 10 | July 12 | July 26 | | | 5 year in 10 later than-- | May 25 | June 22 | July 8 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | August 18 | August 8 | August 1 | | | 2 yr in 10 earlier than-- | August 23 | August 12 | August 4 | | | 5 yr in 10 earlier than-- |September 3 | August 20 | August 10 | | | ------------------------------------------------------------------------ FROST Station : CHANDALAR LAKE, AK1492 Start yr. - 1969 End yr. - 1990 Requested years of data: 22 Available years of data: 22 Spring: Years of missing data 24 deg = 3, 28 deg = 3, 32 deg = 3 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 19, 28 deg = 19, 32 deg = 19 Fall: Years of missing data 24 deg = 3, 28 deg = 3, 32 deg = 3 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 19, 28 deg = 19, 32 deg = 19 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | June 8 | July 17 | August 6 | | | 2 year in 10 later than-- | June 4 | July 8 | July 31 | | | 5 year in 10 later than-- | May 27 | June 21 | July 19 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | August 7 | August 1 | August 1 | | | 2 yr in 10 earlier than-- | August 13 | August 5 | August 3 | | | 5 yr in 10 earlier than-- | August 22 | August 13 | August 6 | | | ------------------------------------------------------------------------ FROST Station : EAGLE, AK2607 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 28 Spring: Years of missing data 24 deg = 9, 28 deg = 9, 32 deg = 8 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 21, 28 deg = 21, 32 deg = 22 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 28 | June 16 | July 4 | | | 2 year in 10 later than-- | May 23 | June 8 | June 24 | | | 5 year in 10 later than-- | May 13 | May 24 | June 7 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | August 24 | August 16 | August 8 | | | 2 yr in 10 earlier than-- | August 30 | August 20 | August 12 | | | 5 yr in 10 earlier than-- |September 11 | August 28 | August 19 | | | ------------------------------------------------------------------------