FROST Station : BURGETTSTOWN 2 W, PA1105 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 29 Spring: Years of missing data 24 deg = 4, 28 deg = 4, 32 deg = 3 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 = 3, 28 deg = 3, 32 deg = 2 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 27, 28 deg = 27, 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 7 | May 20 | June 8 | | | 2 year in 10 later than-- | May 2 | May 14 | June 1 | | | 5 year in 10 later than-- | April 23 | May 4 | May 20 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 12 |September 30 |September 15 | | | 2 yr in 10 earlier than-- | October 17 | October 5 |September 19 | | | 5 yr in 10 earlier than-- | October 26 | October 14 |September 28 | | | ------------------------------------------------------------------------ FROST Station : DONORA 1 SW, PA2190 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 = 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-- | April 22 | May 2 | May 14 | | | 2 year in 10 later than-- | April 16 | April 26 | May 10 | | | 5 year in 10 later than-- | April 5 | April 17 | May 1 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 23 | October 12 | October 2 | | | 2 yr in 10 earlier than-- | October 29 | October 18 | October 7 | | | 5 yr in 10 earlier than-- | November 10 | October 30 | October 17 | | | ------------------------------------------------------------------------