Your climate has ours beat, I'm afraid.
Our hottest time is the month of June, just before the the summer rainy season starts (monsoon). It normally gets above 100 almost every day, quite a few days of 106-108 with record high being about 112. But it cools off nicely at night, temps going down to upper 60s, low 70s. This is due to the very low humidity, around 6-8 percent, sometimes even down to 4 percent. Now, when the summer rainy season starts about the first week of July, we get humidity, rain, cooler daytime temps (95-102) and warmer nights (high 70s). But not much rain -- only about 11 inches total per year.
One nice thing about where I live, I haven't been bitten by a mosquito in 16 years.