PHOENIX — Our monsoon storm threat winds down Friday as high pressure will move west, cutting off our monsoon flow and cranking up the heat.
The 110+ temperatures are back in Phoenix by Friday and they'll be sticking around into the beginning of next week.
We'll also be in record territory. Sunday's record high is 113 degrees, set back in 2020. Monday's record high is 113 degrees, set back in 2009. Tuesday's record high is also 113 degrees, also set back in 2009. We're forecasting highs to be between 112 and 114 degrees on those days.
With dangerously hot temperatures back in the forecast this weekend, Excessive Heat Watches will be in effect from Sunday morning through Tuesday evening. ABC15 Weather Actions Days will take effect those days as well, meaning it's time to prepare for the hot days ahead.
Limit your time outside to before 10am and after 6pm, stay hydrated and wear light-colored, loose fitting clothes. Also, bring your pets inside with temperatures this hot in the forecast.
Phoenix has already had 46 days this summer at 110 degrees or hotter. That's the second most ever recorded. The record is 53 days set in 2020 and we will definitely make a run at that record this year as high heat continues through the end of August.
Twenty of those days have been at 115 degrees or hotter, the most ever recorded in a single year. Previously the record was 14 days set in 2020. We could add to this count by early next week, too.
We could also see more overnight lows in the 90s by early next week. We're now up to 29 days with lows in the 90s, breaking the record of 28 days set in 2020.
As temperatures climb and skies stay mostly sunny, our air quality will get worse, too.
An Ozone High Pollution Advisory is in effect for Friday and Ozone High Pollution Watches are in effect Saturday through Monday. These will likely get upgraded to Advisories as we get closer. Ozone pollution could reach unhealthy levels those days making it difficult to breathe if you have asthma or COPD. So, you may want to limit your time outside if you have any kind of respiratory condition.
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2023 Rainfall totals:
Sky Harbor Official Rainfall: 2.94" (-1.63" from average)
Valley Average (Phoenix Rainfall Index): 3.73"
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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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