Phoenix: First 100º+ day of 2021
The first 100º day of the year signals the unofficial start to summer, and this year, it happened right around 2:15 pm on May 5th.
Using the new 1991-2020 thirty-year averages, the average first 100º+ day occurs on May 2nd. The earliest 100º+ day occurred on March 26th back in 1988, and the latest was in 1913 when it held off until June 18th!
And if you thought this was a little late compared to recent years, you would be right. This is the latest first 100º day since May 21, 2010.
The Valley of the Sun averages 111 days a year with a high of 100º+, so looking at the positive side, only about 110 more days to go!
The first 100º day of the year signals the unofficial start to summer, and this year, it happened right around 2:15 pm on May 5th.
Using the new 1991-2020 thirty-year averages, the average first 100º+ day occurs on May 2nd. The earliest 100º+ day occurred on March 26th back in 1988, and the latest was in 1913 when it held off until June 18th!
And if you thought this was a little late compared to recent years, you would be right. This is the latest first 100º day since May 21, 2010.
The Valley of the Sun averages 111 days a year with a high of 100º+, so looking at the positive side, only about 110 more days to go!