During the late 80s my dad ran Maxus Calgary office later sold to Kerr-McGee. So in Calgary the Texas temperatures would not even be considered cold. This storm

During the late 80s my dad ran Maxus Calgary office later sold to Kerr-McGee. So in Calgary the Texas temperatures would not even be considered cold. This storm dropped Calgary temps to the -20Fs with wind chills in the -55Fs (I did not even check the fields which are further north). Pretty common when I grew up there. Oil and Gas did fine.