Phoenix hits 105, matches day-old record for hottest March day

PHOENIX — Phoenix matched the record for the hottest day ever recorded in March on Friday, just one day after it was set.

Temperatures at Phoenix Sky Harbor International Airport — the official reporting site for the National Weather Service — climbed to 105 degrees just before 3:10 p.m., also topping the previous March 20 record of 96 degrees, which was set in 2017.

In addition, this makes it the third straight day Phoenix has seen triple-digit temperatures.

Until this week, Phoenix had reached triple digits in March just once before, on March 26, 1988.

This latest milestone comes during a historic March heat wave that has toppled multiple records across Arizona. A day earlier, Phoenix hit 105 degrees, breaking the city’s all‑time March temperature record. That even tied the warmest temperature ever recorded in April.

The heat didn’t let up overnight, either. Phoenix logged a morning low of 69 degrees, the warmest low ever recorded on March 20 and 2 degrees above the previous record from 2017.

Low temperatures this morning were again in the mid to upper 60s across the lower deserts which is around 10-15 degrees above normal for this time of year. Phoenix set a new record warm low and Yuma tied the record warm low for today’s date. #azwx #cawx pic.twitter.com/liIaXpSu5Q

— NWS Phoenix (@NWSPhoenix) March 20, 2026

Meanwhile, an extreme heat warning is active in metro Phoenix through Sunday.

Extreme heat warnings trigger the daytime closures of some or all hiking trails at Camelback Mountain, Piestewa Peak and South Mountain in Phoenix.

KTAR News 92.3 FM’s Kylie Werner contributed to this report. 

Related

APS sets all-time electricity demand record as extreme heat strains Arizona power gridExtreme heat warning for metro Phoenix extended ahead of potential record-setting highsPhoenix area wakes up to rain, lightning, thunder, power outagesStorm activity could bring showers through the Valley Tuesday morningArizona utilities shatter energy demand records amid extreme heatPhoenix area will probably be under an extreme heat warning all week