Jackson, Wyoming was selected by Weather.com as one of the five coldest cities in the US. What shocked me the most in their description of the town was that the average last freeze date is July 10, and the average first freeze date is August 16. Man, that's a short summer!
Of course, since these are the average dates, sometimes the last freeze is later, and sometimes the first freeze is earlier. Which must sometimes present the residents with a dilemma, so that when they get a freeze on, say, July 28, you hear on the street, "Hell, Jed, what is this, a really late last freeze, or a really early first freeze?" I imagine the town sometimes paralyzed for days trying to decide.