FROST Station : ROCKFORD WSO AP, IL7382 Start yr. - 1971 End yr. - 2000 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 17 | April 26 | May 14 | | | 2 year in 10 later than-- | April 14 | April 22 | May 9 | | | 5 year in 10 later than-- | April 8 | April 14 | April 30 | | | First freezing temperature | | | in fall: | | | | | | 1 yr in 10 earlier than-- | October 15 |September 30 |September 21 | | | 2 yr in 10 earlier than-- | October 20 | October 6 |September 26 | | | 5 yr in 10 earlier than-- | October 30 | October 17 | October 6 | | | ------------------------------------------------------------------------