Dewdrops on leaves indicate a respite from the dry heat.
After several weeks of heat in the 100's we have been thrilled to have days in the 70's and 80's with soaking rains and cloud cover. Morning walks show dewdrops which usually would have evaporated in the heat before we could get up and out of the house.
In the almost 40 years we've lived in Denver, we've mostly had moderate summers. Our manta once was, "We don't need air conditioning for just 7 to 10 days each summer." In the last 8 to 10 years the uncomfortable days have become the norm and this spring we finally succumbed to before-the-season sales and installed central air in our 66-year-old home. We don't keep it temp-shock cold but on those 100+ days, 80 feels really good inside.