The 10 Coldest Nights of 2017 [degs C]

=9.  1.0   February 4 & 6
  8.  0.9   November 30
=6.  0.7  January 4 & November 29
  5.  0.4  January 23
  4.  0.2  January 24
  3.  0.0  January 19
  2. -0.9  February 11
  1. -1.5  January 3