A Foot Of Snow in Colorado, 97 Degrees in Montana
At 4:15 PM yesterday afternoon, Indpendence Pass, Colorado reported 29 degrees (Conifer, CO reported 14 inches of snow Tuesday!). Meanwhile Malmstrom Air Force Base, MT reported 97 degrees! To be fair since the data QC was marked "Caution" today (not at the time of observation), also consider nearby Highwood, MT which was 92 degrees. This makes for a difference of 68 or 63 degrees over 620 miles (according to Google Earth), either quite impressive. Thanks to Chris Burt [JessePedia], Author of "Extreme Weather" , for the tip.
A more generalized map of official stations is shown below. It doesn't include the extremes mentioned above but you can see where the pockets of cold and hot air were.
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