FROST Station : BROCKWAY 3 WSW, MT1169 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 = 1 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 28, 28 deg = 28, 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 17 | May 23 | June 9 | | | 2 year in 10 later than-- | May 11 | May 18 | June 2 | | | 5 year in 10 later than-- | April 29 | May 9 | May 20 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 13 |September 4 | August 29 | | | 2 yr in 10 earlier than-- |September 19 |September 9 |September 3 | | | 5 yr in 10 earlier than-- |September 30 |September 20 |September 11 | | | ------------------------------------------------------------------------ FROST Station : CIRCLE, MT1758 Start yr. - 1963 End yr. - 1990 Requested years of data: 28 Available years of data: 28 Spring: Years of missing data 24 deg = 2, 28 deg = 2, 32 deg = 1 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 26, 28 deg = 26, 32 deg = 27 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 = 26, 28 deg = 26, 32 deg = 26 ------------------------------------------------------------------------ | 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 29 | | | 2 year in 10 later than-- | May 5 | May 13 | May 23 | | | 5 year in 10 later than-- | April 27 | May 5 | May 14 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 18 |September 10 |September 5 | | | 2 yr in 10 earlier than-- |September 24 |September 15 |September 9 | | | 5 yr in 10 earlier than-- | October 6 |September 25 |September 16 | | | ------------------------------------------------------------------------ FROST Station : FORT PECK POWER PLANT, MT3176 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 3 | May 10 | May 21 | | | 2 year in 10 later than-- | April 28 | May 5 | May 16 | | | 5 year in 10 later than-- | April 18 | April 26 | May 6 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 2 |September 17 |September 13 | | | 2 yr in 10 earlier than-- | October 9 |September 23 |September 18 | | | 5 yr in 10 earlier than-- | October 21 | October 4 |September 28 | | | ------------------------------------------------------------------------ FROST Station : VIDA 6 NE, MT8569 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 = 4, 32 deg = 4 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 24, 28 deg = 26, 32 deg = 26 Fall: Years of missing data 24 deg = 3, 28 deg = 2, 32 deg = 2 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 27, 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 6 | May 16 | May 26 | | | 2 year in 10 later than-- | May 1 | May 11 | May 20 | | | 5 year in 10 later than-- | April 23 | May 2 | May 10 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 21 |September 16 |September 5 | | | 2 yr in 10 earlier than-- |September 27 |September 21 |September 10 | | | 5 yr in 10 earlier than-- | October 8 | October 1 |September 19 | | | ------------------------------------------------------------------------ FROST Station : BROCKWAY 3 WSW, MT1169 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 = 1 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 28, 28 deg = 28, 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 17 | May 23 | June 9 | | | 2 year in 10 later than-- | May 11 | May 18 | June 2 | | | 5 year in 10 later than-- | April 29 | May 9 | May 20 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 13 |September 4 | August 29 | | | 2 yr in 10 earlier than-- |September 19 |September 9 |September 3 | | | 5 yr in 10 earlier than-- |September 30 |September 20 |September 11 | | | ------------------------------------------------------------------------ FROST Station : CIRCLE, MT1758 Start yr. - 1963 End yr. - 1990 Requested years of data: 28 Available years of data: 28 Spring: Years of missing data 24 deg = 2, 28 deg = 2, 32 deg = 1 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 26, 28 deg = 26, 32 deg = 27 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 = 26, 28 deg = 26, 32 deg = 26 ------------------------------------------------------------------------ | 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 29 | | | 2 year in 10 later than-- | May 5 | May 13 | May 23 | | | 5 year in 10 later than-- | April 27 | May 5 | May 14 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 18 |September 10 |September 5 | | | 2 yr in 10 earlier than-- |September 24 |September 15 |September 9 | | | 5 yr in 10 earlier than-- | October 6 |September 25 |September 16 | | | ------------------------------------------------------------------------ FROST Station : FORT PECK POWER PLANT, MT3176 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 3 | May 10 | May 21 | | | 2 year in 10 later than-- | April 28 | May 5 | May 16 | | | 5 year in 10 later than-- | April 18 | April 26 | May 6 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 2 |September 17 |September 13 | | | 2 yr in 10 earlier than-- | October 9 |September 23 |September 18 | | | 5 yr in 10 earlier than-- | October 21 | October 4 |September 28 | | | ------------------------------------------------------------------------ FROST Station : VIDA 6 NE, MT8569 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 = 4, 32 deg = 4 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 24, 28 deg = 26, 32 deg = 26 Fall: Years of missing data 24 deg = 3, 28 deg = 2, 32 deg = 2 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 27, 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 6 | May 16 | May 26 | | | 2 year in 10 later than-- | May 1 | May 11 | May 20 | | | 5 year in 10 later than-- | April 23 | May 2 | May 10 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- |September 21 |September 16 |September 5 | | | 2 yr in 10 earlier than-- |September 27 |September 21 |September 10 | | | 5 yr in 10 earlier than-- | October 8 | October 1 |September 19 | | | ------------------------------------------------------------------------