It amazes me how sensitive I am to the difference between 66°F/19°C and 70°F/21°C. It's the difference between "I'd sure be a lot more comfortable with long sleeves" and "omg I can't take off enough clothes"
@aaronpk lol, spend some time in the Middle East. Midday it may be 110F/43.5C and in the evening it would drop down to around say 90F/32.2C in the evening. Even though 90 is still warm, the drop was so extreme we would be putting on sweaters and jackets in the evening..lol