Hacker News new | past | comments | ask | show | jobs | submit login
As Phoenix Heats Up, the Night Comes Alive (nytimes.com)
15 points by pseudolus 37 days ago | hide | past | web | favorite | 5 comments



I recall listening to an NPR story about the increasing overnight temperatures, particularly due to concrete//cement//pavement. One man interviewed speculated that within his lifetime he'd experience overnight Phoenix temperatures of at least 100F. This aired around roughly 15 years ago, give or take.


I'd be willing to guess that the vast majority of increase in overnight temps is due to sprawl and concrete/asphalt acting as heat batteries. Overnight temps are still reliably in the 80s, though.

I was curious, so I went and checked the NWS historical data. It shows that monthly average lows for August are more or less unchanged in the past 30 years, FWIW.


> the vast majority of increase in overnight temps is due to sprawl and concrete/asphalt acting as heat batteries

That is exactly my recollection of what the story covered.


Also it creates a heat island during the day that creates a region of hot air around the city that will push clouds and storms away.


As a dude who runs around in the Scottsdale hills just after dawn, it's nice to see our tribe get recognized. The city is surprisingly pleasant and friendly at 5:00am in July.




Applications are open for YC Winter 2020

Guidelines | FAQ | Support | API | Security | Lists | Bookmarklet | Legal | Apply to YC | Contact

Search: