Another warmer summer

Now that summer is officially over, it's time to take a look at my daily temperature measurements and see how they compare with the previous numbers I had.

These were taken outdoors, in the shade on the deck of my Park City home. I'm talking about maximum and minimum daily temperatures from June 21 through September 21.

I have started to record them since 2007, without missing a beat, and now have 11 full years to compare. Here, in Park City, we've been under the impression that this summer was the warmest on record, and we were right!

With a 126.33% daily index*, we beat 2016 followed by both 2017 and 2007. As for the maximum heat during the day, we broke all previous records with an average temperature of 80.13 degrees F.

Our coldest day temperature index remains at 117.71% in 2009, with average temperatures staying at a 74.67 degrees level.

With a 81.13% index, our nocturnal temperatures only came second to 2013, at 81.44%, and so did our average overnight temperatures that came to 51.46 degrees vs. a warmer 51.66 degrees in 2013. 

Our lowest nocturnal temperatures were observed in 2009 with an index of 74.62% and an average cool temperature of 47.33 degrees. 

How do these figures compare with your location's?

*Heat index calculated by adding all day and nightly temperatures for the three consecutive months of summer and dividing by their daily average.