We haven't seen any -40(in this rare case doesn't really matter if C or F) since DECEMBER! and it was only a couple of days. This morning it was 2F at my place. I'm thinking we might have an early breakup - which will make up for last years weirdness (cold and snowy until the end of May then went from below 32F to high 70's in less than 2 weeks! - May 18 high of 35F, May 25 high of 77F.)