PHOENIX — Phoenix is not done with the triple digits yet this year.
High pressure is building in over the weekend, bringing Valley highs back into the low 100s Sunday, Monday and Tuesday.
We're also headed back into record territory!
Monday's forecast is now up to 103 degrees, which could break the record of 102 for that day set in 2020.
It will be a close call on Tuesday, too. Right now, the forecast is 101 degrees and the record that day is 102.
On average, our last triple-digit day is around October 5th but we have seen triple digits all the way into late October before. The latest ever recorded was October 27, 2016.
Phoenix has now had 126 days this year at 100 degrees or more. That is the sixth most on record. The average number is 111 days and the all-time record is 145 days, set back in 2020.
With 100s in the forecast for at least three more days this year, 2023 will likely slide into the third place spot for the most triple digit days ever recorded.
Temperatures will start dropping again toward the middle to end of next week. Phoenix should be back into the mid 90s by next Friday.
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MONSOON 2023 WRAP-UP:
Monsoon 2023 officially ended on September 30th and it's going down as the driest on record with only 0.15 inches of rain at Phoenix Sky Harbor.
The previous record was set back in 1924 when we measured 0.35 inches of rain.
Monsoon 2023 was also the second driest monsoon on record for all of Maricopa County.
It was an incredibly hot monsoon, too.
Phoenix hit 110 degrees or hotter 55 days this year, breaking the old record of 53 days set in 2020.
Phoenix hit 115 degrees or hotter 22 days this year. That too is a new all-time record, topping the previous one of 14 days set in 2020.
When it comes to overnight temperatures, Phoenix had 35 days this year with lows in the 90s. The previous record was 28 days set in 2020.
September 10th this year also marked the latest day in any year with a low in the 90s. Previously the record was September 7, 2019.
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2023 Rainfall totals:
Sky Harbor Official Rainfall: 3.03" (-2.56" from average)
Valley Average (Phoenix Rainfall Index): 4.17"
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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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