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MOST ACCURATE FORECAST: Wet and Windy weather this week

Posted at 5:53 AM, Dec 12, 2021
and last updated 2021-12-13 00:20:25-05

PHOENIX — Slightly warmer weather to start off the week with Valley temperatures in the 70s with plenty of sunshine. But it doesn't last for long.

All eyes are on the next storm system to drop into California early Tuesday morning and hit Arizona by Tuesday afternoon.

The strong cold front will bring a better chance for widespread rain and snow, with the heaviest activity Tuesday night through Wednesday morning.

The Valley can expect .10" to .25" of rain. The rest of the state getting about .25" to ,50" of rain.

Snow levels will drop as low as 5,000 ft. with just a dusting. above 6500 ft expect 2" to 4" and 3" to 8" expected above 7,000 ft.

But the most dangerous component of this storm will be the winds.
A Wind Advisory for all of Western Arizona is in place all day Tuesday as winds could gusts as strong as 50 mph.
A High Wind Watch is in place Tuesday-Wednesday for Northern and Eastern Arizona as winds could gusts as strong as 60 mph.

For the Valley our winds are expected to gusts between 25-35 mph.

This system will also bring in very cold air and drop temperatures in the Valley back into the low 60s for the rest of the week.
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2021 Rainfall totals:

Sky Harbor Official Rainfall: 5.93" (-0.83" from average)

Valley Average (Phoenix Rainfall Index): 7.16"
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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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See the full 7-Day forecast

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