made me 'check' lol. I have 2 -35's, both in Jan. First was 1/21/85 with a 8 high and -19 low. Second was 1/19/94 with a 9 high and -17 low. That week (1/15-1/22/94) was MOST impressive, I ran a -25 average thru that period with 6 out of seven nights below zero.
EDIT, missed at least one. Christmas Day 1983, -35 avg, 9 high, -10 low.