The 10 Coldest Nights of 2010

10. December 24th [-1.8]
7=. January 5th [-2.2]
7=. January 8th [-2.2]
7=. December 2nd [-2.2]
6. November 30th [-2.3]
4=. January 7th [-3.0]
4=. December 3rd [-3.0]
3. December 23rd [-3.1]
2. December 25th [-3.3]

And the winner is:
1. November 28th [-3.8]!