Keeping track of all-time warmest/coldest daily maximum temperatures and all-time warmest/coldest months on record for any given site is a fairly easy task. However, very few NWS sites provide data concerning what their respective coldest climatological winters (December-February) or hottest climatological summers (June-August) have been. Researching 300 sites in the contiguous U.S. I have put together this summary for such. Below are the methods I used and some of the results, which proved quite interesting.
weatherhistorian, • 6:27 PM GMT on May 28, 2015