Highs and lows on weather forecasts only gives a vague sense of the weather. For example, deserts might reach over 100 degrees Fahrenheit, however that's often times counter balanced with very cold nights.
A better sense would be in the form temperature duration.
For example this forecast:
City A high 88, low 70
City B high 100, low 50
One might think city B has hotter weather, but say these are the durations
City A day: 10 hours in the 80s and 14 hours in the 70s
City B day: 1 hour in the 100s, 3 hours in the 90s, 4 hours in the 80s, 4 hours in the 70s, 8 hours in the 60s, 4 hours in the 50s.
Perhaps the integral under a curve could be stated for forecasts, sort of like how much area under a temperature/time curve.
Also for temps over 80degF or so humidity becomes an important factor. 100degF @ 15 humidity is more tolerable than is 80degF @ 85% humidity due to the amount of evaporation of liquid on the skin which has a strong cooling effect.
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