PHOENIX — Record-breaking heat is back in the Valley!
We set two new daily temperature records on Monday in Phoenix.
Our early morning low of only 93 degrees broke the record of 90 degrees set in 2020 and our afternoon high of 117 degrees broke the previous record of 113 degrees set in 2009.
We could break more records on Tuesday before this stretch of extreme heat ends.
The overnight low is only expected to drop to 93 degrees again. That will likely break the record of 90 degrees set in 1981. Then, we're expected to climb back up to 116 degrees which would break the record of 113 set in 2009.
Excessive Heat Warnings remain in effect for the entire Phoenix metro area and most of southern and western Arizona until 8 p.m. Tuesday.
Areas on La Paz and Yuma counties along the Colorado River will remain under Excessive Heat Warnings until 8 p.m. Wednesday.
So, we are in ABC15 Weather Action mode as a reminder to take action to keep yourself, your family and your pets safe in this extreme heat. Limit your time outside, stay hydrated and bring your pets inside, too.
Phoenix has already had 50 days this summer with highs at 110 degrees or hotter. That's the second most ever recorded. The record is 53 days set in 2020 and we will be inching closer to that record over the next several days.
Phoenix has also had 21 days so far at 115 degrees or hotter, the most ever recorded in a single year. Previously, the record was 14 days set in 2020. We will add to this tally too.
We could also see more overnight lows in the 90s. We're now up to 32 days with lows in the 90s. The old record was 28 days set in 2020.
As temperatures climb and skies stay mostly sunny, our air quality has been getting worse too.
An Ozone High Pollution Advisory is in effect through Tuesday and an Ozone High Pollution Watch is in effect on Wednesday. Ozone pollution could reach unhealthy levels making it difficult to breathe, especially if you have asthma or COPD. So, you may want to limit your time outside if you have any kind of respiratory condition.
Showers and thunderstorms will continue to impact the higher terrain of northern and eastern Arizona. We could see an isolated storm or two in the Valley on Tuesday or Wednesday, but most of the Phoenix metro area will stay dry through the first half of the week.
As high pressure shifts farther east Thursday and Friday, more monsoon moisture will return bringing storm chances back to the Valley.
As storms chances ramp up, temperatures will drop. Valley highs will fall back into the upper 90s to low 100s on Friday.
We're also tracking an area of low pressure that will approach from the northwest this weekend. That will keep temperatures in the low 100s through Labor Day weekend.
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2023 Rainfall totals:
Sky Harbor Official Rainfall: 2.94" (-1.75" from average)
Valley Average (Phoenix Rainfall Index): 3.74"
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Daily rainfall reports from all across the Valley can be found here.
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PHOENIX IS GETTING DRIER - LOWER RAINFALL AVERAGES NOW
Average Monsoon Rainfall in Phoenix (1981-2010): 2.71" of rain
NEW Average Monsoon Rainfall in Phoenix (1991-2020): 2.43" of rain
Average Yearly Rainfall in Phoenix (1981-2010): 8:03" of rain
NEW Average Yearly Rainfall in Phoenix (1991-2020): 7.22" of rain
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