The garden calendar makes safe recommendations. I would advise to follow the recommendations, and not worry if its colder or hotter. When setting out plants use a frost free date that will ensure no frost 95% of the time and use that as a final planting date. In the grand scheme of things it’s a difference of about a week. Another safe approach is the news. Go with your recommended planting date; if its calling for frost or freeze in the seven-day forecast… don’t set out plants.
Michael Harman, Extension Instructor – Extension Agent, Agriculture & Natural resources
1948 Wiltshire Road, Suite 3, Kearneysville, WV 25430-9644, 304-728-7413