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MOST ACCURATE FORECAST: Chances for thunderstorms across Arizona this week

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PHOENIX — It's a hot start to the week as the Valley hits our first stretch of triple digits this year!

As a storm system sits to our south, moisture is moving in too.

That moisture, combined with our daytime heat, is leading to showers and thunderstorms across Arizona throughout the week. It will be looking like and feeling like a little preview of what we typically see during the monsoon.

Storms will fire up first each day in the higher terrain. Then, there's a chance we could see some isolated showers or thunderstorms in the Valley.

Gusty winds and blowing dust will be the biggest threats here in the desert.

Up north, we could see lots of lightning and areas of brief, heavy rain with any storms that develop across the high country.

Temperatures will gradually drop throughout the week, putting the Valley in the upper 90s by Thursday and Friday.

Then, we'll heat back up into the low 100s over the weekend as slight chances for storms continue.

We're also still tracking a Flood Warning in effect for parts of the Gila River in southwestern Arizona as the flow increases due to water releases from the Painted Rock Dam. This warning has now been extended through May 16th. Do not attempt to cross any flooded roadways.

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2023 Rainfall totals:

Sky Harbor Official Rainfall: 2.88" (+0.03" from average)

Valley Average (Phoenix Rainfall Index): 3.33"

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2022 Rainfall totals:

Sky Harbor Official Rainfall: 5.78" (-1.44" from average)

Valley Average (Phoenix Rainfall Index): 7.02"

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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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