-2° when I woke up at 8a, 40° when I got back from taking the boy to work at 2p.
It's funny when the idiots in Denver or Springs blow up the internet to brag about record setting temperature swings, but down here in LJ mother nature just says "hold my beer."
Worst swing I saw was from 90 down to 15. The line between spawned many tornadoes that day. I was out spotting and called in what turned out to be an F4 that tracked for 67 miles across MN, mostly across open farmland thankfully. But it started in a small town south of me and they were wiped off the map, only about 30% of the town is still there now.
I called it in on the 2 meter ham radio national weather service net then went into that town to do first aid. No deaths but a LOT of injuries. Exhausted my first aid supplies, whatever 4 sheriffs carried, and came close to emptying the first responders truck that arrived 30 minutes after the event, they had problems with down power lines and had to take the long way around and come in from the side I did.
That area of Buffalo Ridge is notorious for tornadoes, the geography triggers bad wind shear along the SW side and top of the ridge... I am on the NW side of it and in the weather shadow. I can watch storms climb the ridge and evaporate and then reform 20 miles east after going over me.
Now NWS uses my weather station for the local forecast, go 30 miles any direction and weather can be different!