The temperature in Phoenix reached 110 degrees for the first time this year Sunday, June 13, and, for good measure, for the second time the day after. That's a bit later than usual. On average, Phoenix sees its first 110-degree day June 11. We had broken the 100-degree threshold early this year, on March 18, the earliest 100-degree day on record. But we were slower to hit 110 degrees. What can we expect for the rest of the summer?