The 10 Coldest Nights of 2019 [degs C]

10.  1.7  March 26
  9.  1.5  January 29
  8.  1.3  December 18
  7.  1.1  December 3
  6.  0.7  January 21
  5.  0.1  January 10
  4.  -0.2  February 1
  3.  -0.3  December 2
  2.  -0.8  February 3
  1.  -1.4  January 31