Extremes for Roanoke: Maximum Precipitation on Labor Day Precipitation YEAR & DATE 1. 6.56 1987 (9/7) 2. 2.51 2011 (9/5) 3. 1.44 1948 (9/6) 4. 1.3 1942 (9/7) 5. 1.12 1984 (9/3) 6. 0.92 1926 (9/6) 7. 0.75 2006 (9/4) 8. 0.65 1935 (9/2) 9. 0.51 2000 (9/4) 10. 0.49 1999 (9/6)