Extremes for Roanoke: Minimum High Temperatures on Labor Day High YEAR & DATE 1. 65 1937 (9/6) 2. 66 1986 (9/1) 3. 69 2006 (9/4) 4. 70 2004 (9/6) 5. 71 1929 (9/2) 6. 72 1987 (9/7) 7. 73 1991 (9/2) 8. 73 2001 (9/3) 9. 73 1934 (9/3) 10. 74 1935 (9/2)