The 10 Coldest Nights of 2020 [degs C]*

 10.  2.5  March 3
 =8.  2.3  March 27,  March 30
   7.  2.2  December 31
   6.  2.0  March 26
   5.  1.9  March 16
   4.  1.6  January 18
   3.  1.5  January 21
   2.  1.0  December 25
   1.  0.0  January 20

*Not including dates from October 9 to December 24