PHOENIX — Monsoon 2024 kicked back into gear on Sunday bringing storms across Arizona, including to the Valley.
Phoenix Sky Harbor measured 0.33 inches of rain Sunday, marking the highest single-day rainfall we've seen at the airport so far this season. That's also more than double the amount of rainfall we saw at Sky Harbor in all of Monsoon 2023!
As monsoon moisture sticks around, we'll see daily storm chances throughout the week.
The best potential for storms will be across the higher terrain in northern, eastern and in southeastern Arizona, but by the end of the week storm chances in the Valley will ramp up too.
Any storms that develop could produce gusty winds, blowing dust, dangerous lightning, small hail, downpours and flooding, especially along our burn scars. So, stay weather-aware and remember to never attempt to drive through flooded washes or roadways.
The boost in moisture and rain also brought some minor relief from the extreme heat.
Valley highs dipped below the 110-degree mark on Sunday and Monday, after a 12-day stretch of 110+ temperatures. That tied for the fourth-longest stretch of consecutive days at 110 degrees or hotter.
After a 12-day stretch of overnight lows in the 90s, Phoenix finally dipped below 90 degrees on Sunday. That ended the second-longest stretch of consecutive days with lows in the 90s. The longest stretch came just last year when we had 16 straight days with lows in the 90s.
These slightly lower temperatures won't last much longer, though.
Valley highs will be back above 110 degrees starting Tuesday with overnight lows back in the low 90s.
So, limit your time outside in the late morning and afternoon, stay hydrated with water and electrolyte drinks, and never leave kids or pets alone in your vehicle.
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2024 Rainfall totals:
Sky Harbor Official Rainfall: 4.17" (+0.90" from average)
Valley Average (Phoenix Rainfall Index): 3.90"
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2023 Rainfall totals:
Sky Harbor Official Rainfall: 4.21" (-3.01" from average)
Valley Average (Phoenix Rainfall Index): 5.47"
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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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