Below Zero Wind Chill History: What Years Experienced More?

It's been two years since I updated this chart.  It shows total hours at each below zero level from last winter (2021-2022) back to the winter of 1976-1977.

Here are some take home points: 

*  No -20 wind chill since early 2019

*  Coldest winter (wind chill) in recent memory was 2013-14.  Also the last time we had a long duration period with wind chills under -30

* Winter of 1992-1993 was the only one without a wind chill below zero. 1997-98 was close.

* Some notable winters (total hours below zero):  

2018-19:  669

2017-18:  842

2008-09:  772

1996-97:  1022

1993-94:  1605

1989-90:  1089

1983-84:  1958

1976-77:  2125