Labels:text | map | font | diagram OCR: Mean Date of First Freeze Mean Date of Last Freeze 50% Probability 50% Probability 11/20 11/25 12/1 11/30 3/1 12/10 12/30 2/20 1/20 12/20 2/10 1/10 1/10 1/20 <50% <50% Hours below 32'F during the The Effects of Freeze of January 1985 3/22. No data 55 Freeze 35 on Agriculture 25 Under 20