Early spring is windy and wet and slushy and muddy. It is now midsummer and warm, but what is scorching - most of the State is above 2 000 M and the humidity is typically 40% in summer, so it cools off after sunset. May/June I believe is second best to October/November - the autumn colour and autumn air combination is my favourite.

I suggest the way up north must take you through the Utah Colorado canyon onto Moab, Utah.

 

To me scorching is 35-50C but looking at the average charts for the areas it never/rarely reaches that sort of temperature. So it seems California, Arizona and Nevada appear the hottest spots during the summer. Sooo, it looks like we'll venture over during the summer 2015 for a spot of 'touristy' trekking about and dust raising some offroad places. I like cool in the evening as it's refreshing an easier to sleep.

When I was in Alice Springs, Aus, during their summer the night time temps were around 30+C and 45+C during the day which was tiring day after day. Mind you, when I worked in the middle east 50C was a fairly normal daytime temp ................. and hot hot hot.

 

MMmm... remember the Negev desert in 1991 - 51 degrees by 11H00. Briefcase got so hot in a tent it you had trouble picking up and holding it. Min night temp at Ein Bokek where the sleeping quarters were was 33.