Show the min temperature and max temperature for each day.
select date, max_temperature_f, min_temperature_f from weather
Order that by ascending order of difference between the max and min temperatures.
select date, max_temperature_f, min_temperature_f from weather order by max_temperature_f - min_temperature_f
Find the day in which the difference between the max temperature and min temperature was the smallest. Also report the difference.
select date, max_temperature_f - min_temperature_f from weather order by max_temperature_f - min_temperature_f limit 1