FROST Station : AUGUSTA, MT0364 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 10 | May 26 | June 6 | | | 2 year in 10 later than-- | May 5 | May 20 | June 1 | | | 5 year in 10 later than-- | April 27 | May 10 | May 24 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 14 |September 5 |September 2 | | | 2 yr in 10 earlier than-- |September 20 |September 11 |September 6 | | | 5 yr in 10 earlier than-- | October 1 |September 21 |September 13 | | | ------------------------------------------------------------------------ FROST Station : AUSTIN 1 W, MT0375 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 = 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 15 | June 3 | June 22 | | | 2 year in 10 later than-- | May 9 | May 28 | June 16 | | | 5 year in 10 later than-- | April 28 | May 18 | June 5 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 16 |September 6 | August 29 | | | 2 yr in 10 earlier than-- |September 23 |September 11 |September 3 | | | 5 yr in 10 earlier than-- | October 7 |September 20 |September 12 | | | ------------------------------------------------------------------------ FROST Station : CANYON FERRY DAM, MT1470 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-- | April 29 | May 12 | May 31 | | | 2 year in 10 later than-- | April 24 | May 7 | May 26 | | | 5 year in 10 later than-- | April 16 | April 29 | May 16 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 2 |September 20 |September 13 | | | 2 yr in 10 earlier than-- | October 8 |September 26 |September 19 | | | 5 yr in 10 earlier than-- | October 20 | October 7 |September 29 | | | ------------------------------------------------------------------------ FROST Station : HELENA WSO, MT4055 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-- | April 30 | May 12 | June 1 | | | 2 year in 10 later than-- | April 26 | May 7 | May 27 | | | 5 year in 10 later than-- | April 18 | April 29 | May 18 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 21 |September 13 |September 5 | | | 2 yr in 10 earlier than-- |September 27 |September 18 |September 10 | | | 5 yr in 10 earlier than-- | October 8 |September 30 |September 20 | | | ------------------------------------------------------------------------ FROST Station : HOLTER DAM, MT4241 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-- | April 26 | May 6 | May 22 | | | 2 year in 10 later than-- | April 21 | May 1 | May 17 | | | 5 year in 10 later than-- | April 10 | April 22 | May 7 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 6 |September 26 |September 11 | | | 2 yr in 10 earlier than-- | October 13 | October 2 |September 17 | | | 5 yr in 10 earlier than-- | October 25 | October 14 |September 29 | | | ------------------------------------------------------------------------ FROST Station : LINCOLN RANGER STN, MT5040 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 = 0 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 29, 28 deg = 29, 32 deg = 30 Fall: Years of missing data 24 deg = 1, 28 deg = 0, 32 deg = 0 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 29, 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 29 | July 14 | July 28 | | | 2 year in 10 later than-- | May 23 | July 4 | July 21 | | | 5 year in 10 later than-- | May 11 | June 16 | July 8 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 2 | August 15 | July 30 | | | 2 yr in 10 earlier than-- |September 7 | August 20 | August 4 | | | 5 yr in 10 earlier than-- |September 17 | August 29 | August 13 | | | ------------------------------------------------------------------------ FROST Station : ROGERS PASS 9 NNE, MT7159 Start yr. - 1964 End yr. - 1990 Requested years of data: 27 Available years of data: 27 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 = 23, 28 deg = 23, 32 deg = 23 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 = 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-- | May 16 | May 28 | June 18 | | | 2 year in 10 later than-- | May 10 | May 22 | June 11 | | | 5 year in 10 later than-- | April 28 | May 12 | May 29 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 17 |September 9 |September 5 | | | 2 yr in 10 earlier than-- |September 24 |September 15 |September 9 | | | 5 yr in 10 earlier than-- | October 7 |September 26 |September 16 | | | ------------------------------------------------------------------------ FROST Station : AUGUSTA, MT0364 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 10 | May 26 | June 6 | | | 2 year in 10 later than-- | May 5 | May 20 | June 1 | | | 5 year in 10 later than-- | April 27 | May 10 | May 24 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 14 |September 5 |September 2 | | | 2 yr in 10 earlier than-- |September 20 |September 11 |September 6 | | | 5 yr in 10 earlier than-- | October 1 |September 21 |September 13 | | | ------------------------------------------------------------------------ FROST Station : AUSTIN 1 W, MT0375 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 = 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 15 | June 3 | June 22 | | | 2 year in 10 later than-- | May 9 | May 28 | June 16 | | | 5 year in 10 later than-- | April 28 | May 18 | June 5 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 16 |September 6 | August 29 | | | 2 yr in 10 earlier than-- |September 23 |September 11 |September 3 | | | 5 yr in 10 earlier than-- | October 7 |September 20 |September 12 | | | ------------------------------------------------------------------------ FROST Station : CANYON FERRY DAM, MT1470 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-- | April 29 | May 12 | May 31 | | | 2 year in 10 later than-- | April 24 | May 7 | May 26 | | | 5 year in 10 later than-- | April 16 | April 29 | May 16 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 2 |September 20 |September 13 | | | 2 yr in 10 earlier than-- | October 8 |September 26 |September 19 | | | 5 yr in 10 earlier than-- | October 20 | October 7 |September 29 | | | ------------------------------------------------------------------------ FROST Station : HELENA WSO, MT4055 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-- | April 30 | May 12 | June 1 | | | 2 year in 10 later than-- | April 26 | May 7 | May 27 | | | 5 year in 10 later than-- | April 18 | April 29 | May 18 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 21 |September 13 |September 5 | | | 2 yr in 10 earlier than-- |September 27 |September 18 |September 10 | | | 5 yr in 10 earlier than-- | October 8 |September 30 |September 20 | | | ------------------------------------------------------------------------ FROST Station : HOLTER DAM, MT4241 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-- | April 26 | May 6 | May 22 | | | 2 year in 10 later than-- | April 21 | May 1 | May 17 | | | 5 year in 10 later than-- | April 10 | April 22 | May 7 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 6 |September 26 |September 11 | | | 2 yr in 10 earlier than-- | October 13 | October 2 |September 17 | | | 5 yr in 10 earlier than-- | October 25 | October 14 |September 29 | | | ------------------------------------------------------------------------ FROST Station : LINCOLN RANGER STN, MT5040 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 = 0 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 29, 28 deg = 29, 32 deg = 30 Fall: Years of missing data 24 deg = 1, 28 deg = 0, 32 deg = 0 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 29, 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 29 | July 14 | July 28 | | | 2 year in 10 later than-- | May 23 | July 4 | July 21 | | | 5 year in 10 later than-- | May 11 | June 16 | July 8 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 2 | August 15 | July 30 | | | 2 yr in 10 earlier than-- |September 7 | August 20 | August 4 | | | 5 yr in 10 earlier than-- |September 17 | August 29 | August 13 | | | ------------------------------------------------------------------------ FROST Station : ROGERS PASS 9 NNE, MT7159 Start yr. - 1964 End yr. - 1990 Requested years of data: 27 Available years of data: 27 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 = 23, 28 deg = 23, 32 deg = 23 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 = 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-- | May 16 | May 28 | June 18 | | | 2 year in 10 later than-- | May 10 | May 22 | June 11 | | | 5 year in 10 later than-- | April 28 | May 12 | May 29 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 17 |September 9 |September 5 | | | 2 yr in 10 earlier than-- |September 24 |September 15 |September 9 | | | 5 yr in 10 earlier than-- | October 7 |September 26 |September 16 | | | ------------------------------------------------------------------------