Ah that's nothing try 40 or 50 degree drop in a few hours. One February we had a balmy +60 at 07:00 to a -30 by 19:00. Fortunately, it doesn't do that all the time but 20 to 50 degree drops happen all the time especially in the fall and spring.It can certainly change fast!
We had a perfect day going, bright sun, mid 90's, no wind.
I went down for a nap and when I woke up, it had turned upside-down in just 1-1/2 hours.
Temp dropped 18°, dark overcast sky, and a pesky wind.
One summer we got 6" to 8" of snow in August. Living in the high mountains is fun.
