June 26, 1990 - Hottest Day Ever in Phoenix

- Posted in Weather Facts by

If you thought the past few years have been hot, they have nothing on the year 1990!

To get a picture of the record-setting 1990 heat wave, it all started on June 20, when the high temperature in Phoenix reached 113º. The high stayed at or above 113º through June 24, until a high of 120º was measured on June 25. At the time, it was the highest temperature Phoenix had ever recorded since records began in 1896. Sadly, that record did not last long, as the very next day (June 26) the temperature topped out at a remarkable 122º! This temperature still stands as the hottest temperature ever recorded in Phoenix. This record stands just 12º cooler than the record high temperature ever recorded on Earth. That record was set on July 7, 1913, at Furnace Creek (Death Valley), at a scorching 134º.

To understand how intense this Phoenix heat was, let's take a quick look back at what those living in Phoenix would have felt on June 26, 1990.

First off, the low that morning was already 91º. By 8 am, the temperature had risen to 99º and was up to 112º by 11 am. No, that is not a typo; it was above 110º before noon! At 2 pm the temperature rose to the 120º mark and finally at 4 pm, the thermometer read the record-setting 122º! The temperature cooled to 120º by 5 pm and 119º an hour later. The heat continued through the night, with temperatures staying above 100º until midnight! Overall, the temperature remained above 100º for 15 hours, above 110º for 10 hours, and at or above 120º for 4 hours. Bottom line, it was HOT!

Did you live in the Valley during this record-setting heat wave? What were you doing? Tweet me your story: @mattpaceweather

Phoenix: Earliest 87º+ Low Temperature On Record

- Posted in Weather Records by

If you stepped outside Monday morning you may have noticed a couple of things: clouds, humidity, and it was still warm!

The clouds and moisture that moved in overnight did not allow temperatures to fall very far during the overnight hours, with the low at Phoenix Sky Harbor only dropping to 87º. This breaks the record for the earliest 87º+ low temperature for the year. The old record was June 13, 2018.

It should be of no surprise that this also breaks the record for the warmest low temperature for the day, which was 82º and set in 2013.

In case you were wondering, the warmest low temperature ever recorded in Phoenix stands at 92º and occurred on both June 29, 1976, and July 6, 1983.