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MOST ACCURATE FORECAST: Rain and snow across Arizona!

Posted at 4:29 AM, Dec 09, 2021

PHOENIX — Our first winter storm is moving through bringing rain, snow, gusty winds and cooler air across Arizona.

Some Valley locations had already received over a quarter of an inch of rain by 10 p.m.

Rain will continue to push through overnight, but we should be back in the clear by sunrise.

Up north, we're tracking the chance of around one to four inches of snow, including in Flagstaff and along the Mogollon Rim. Accumulating snow will be for areas at 6,500 feet in elevation or higher.

We're also tracking the chance for seven to eleven inches of snow along the Kaibab & Defiance Plateaus, prompting a Winter Weather Advisory in those spots through mid-day Friday.

Wind gusts will peak near 25 mph here in the Valley, but they could top 45 mph in parts of northern Arizona.

A High Wind Warning is in effect for downslope areas along the Mogollon Rim and White Mountains, where gusts could reach 60 mph overnight.

By Friday, the storm heads east. A few rain and snow showers will be possible in eastern Arizona, but our forecast will dry back out here in the Valley.

There's also the chance for some patchy fog to develop early in the morning on Friday. Then, we'll see some passing clouds and highs in the mid 60s Friday afternoon.

Sunshine returns over the weekend with highs in the upper 60 to low 70s across the Valley.

Mornings will stay chilly with overnight lows in the upper 30s to mid 40s.

Next week, all eyes are on the Pacific again as another storm system churns off the coast of California.

This one could bring rain and snow chances back to Arizona by Tuesday and Wednesday. Stay tuned for details as we get closer!

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2021 Rainfall totals:

Sky Harbor Official Rainfall: 5.58" (-1.10" 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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