FROST Station : BACK BAY WILDLIFE RFG, VA0385 Start yr. - 1961 End yr. - 1990 Requested years of data: 30 Available years of data: 30 Spring: Years of missing data 24 deg = 10, 28 deg = 10, 32 deg = 8 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 20, 28 deg = 20, 32 deg = 22 Fall: Years of missing data 24 deg = 7, 28 deg = 6, 32 deg = 4 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 23, 28 deg = 24, 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-- | March 12 | March 28 | April 9 | | | 2 year in 10 later than-- | March 3 | March 21 | April 4 | | | 5 year in 10 later than-- | February 14 | March 8 | March 26 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | November 28 | November 19 | October 31 | | | 2 yr in 10 earlier than-- | December 6 | November 25 | November 6 | | | 5 yr in 10 earlier than-- | December 22 | December 8 | November 19 | | | ------------------------------------------------------------------------