That describes 1999 (killed my freshly planted Reliant peach tree) and 2010 (killed new shoots of ash, oak and some maple, plus all the blossoms on our apple trees.) Highly doubt it will happen this year, as the BN April is far different from April 2010 (+5) and early May '10 had 2 days at 81. (Then 5/11 dawned at 22° - disastah!) Yesterday's 69 was just about perfect, and the only green is on the willows, though buds have broken on hophornbeam and cherry, and red maple is in full flower.