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Phoenix likely done with 110-degree days in 2019, National Weather Service says

Posted at 9:20 AM, Sep 16, 2019
and last updated 2019-09-16 13:00:37-04

PHOENIX — The National Weather Service says our 110-degree days are likely over for the year.

The latest date Phoenix saw temperatures of 110 degrees was September 19, 2010.

This year, it looks like our last 110-degree day happened on September 5th.

Meteorologist Iris Hermosillo says we begin to see more Pacific storm systems, our temperatures will begin to finally cool off. We aren’t done with the triple-digit temperatures, though. Highs will end up in the low 100s for much of this week.


This year, we felt 29 days at or above 110 degrees. Meteorologist Iris Hermosillo says we are just a few days shy of the record number of days at or above 110 degrees, which occurred in 2011.

The highest temperature Phoenix saw in 2019 was 115 degrees, and we hit that temperature twice during the summer, NWS says.

Meteorologist Iris Hermosillo says our average last 100-degree day is October 3rd, while the latest we’ve recorded a 100-degree day was October 27, 2016.