Summer is long, hot, and dry with little rain, but relative humidity is generally low, making the heat tolerable. Average high temperatures are between , and it can occasionally drop to   in the mountainous north of the city at night. Most of the light annual precipitation occurs from late autumn to mid-spring, but no one month is particularly wet. The hottest month is July, with a mean minimum temperature of  and a mean maximum temperature of , and the coldest is January, with a mean minimum temperature of  and a mean maximum temperature of .