FROST Station : ROCKVILLE 1 NE, MD7705 Start yr. - 1961 End yr. - 2000 Requested years of data: 40 Available years of data: 40 Spring: Years of missing data 24 deg = 5, 28 deg = 4, 32 deg = 4 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 35, 28 deg = 36, 32 deg = 36 Fall: Years of missing data 24 deg = 5, 28 deg = 5, 32 deg = 5 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 35, 28 deg = 35, 32 deg = 35 ------------------------------------------------------------------------ | Temperature ---------------------------|-------------------------------------------- Probability | 24F or lower | 28F or lower | 32F or lower | ---------------------------|--------------|--------------|-------------- | | | Last freezing temperature | | | in spring: | | | | | | 1 year in 10 later than-- | April 10 | April 18 | May 4 | | | 2 year in 10 later than-- | April 4 | April 12 | April 27 | | | 5 year in 10 later than-- | March 23 | April 2 | April 15 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 23 | October 13 | October 3 | | | 2 yr in 10 earlier than-- | November 1 | October 20 | October 9 | | | 5 yr in 10 earlier than-- | November 18 | November 2 | October 21 | | | ------------------------------------------------------------------------