FROST Station : AMCHITKA, AK0252 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 4 Spring: Years of missing data 24 deg = 27, 28 deg = 27, 32 deg = 27 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 3, 28 deg = 3, 32 deg = 3 Fall: Years of missing data 24 deg = 28, 28 deg = 28, 32 deg = 28 Years with no occurrence 24 deg = 1, 28 deg = 1, 32 deg = 0 Data years used 24 deg = 2, 28 deg = 2, 32 deg = 2 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | May 5 | May 6 | June 7 | | | 2 year in 10 later than-- | April 23 | May 2 | May 31 | | | 5 year in 10 later than-- | April 2 | April 25 | May 17 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | ---------- | ---------- | ---------- | | | 2 yr in 10 earlier than-- | ---------- | ---------- | ---------- | | | 5 yr in 10 earlier than-- | ---------- | ---------- | ---------- | | | ------------------------------------------------------------------------ FROST Station : KOTZEBUE WSO AIRPORT, AK5076 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 31 | June 12 | June 22 | | | 2 year in 10 later than-- | May 28 | June 8 | June 18 | | | 5 year in 10 later than-- | May 21 | May 31 | June 12 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 22 |September 13 |September 4 | | | 2 yr in 10 earlier than-- |September 25 |September 17 |September 8 | | | 5 yr in 10 earlier than-- | October 1 |September 24 |September 16 | | | ------------------------------------------------------------------------