MOST ACCURATE FORECAST: Hot start to December this week

Posted at 5:42 AM, Nov 28, 2021
and last updated 2021-11-29 00:22:02-05

PHOENIX — Strong ridge of high pressure has set up shop over the Desert Southwest and it isn't going anywhere. Leading to some very warm temperatures for this time of year.

If you are not a fan of dry, sunny and warm weather, the forecast put out by the Climate Prediction Center for the start of December, continues that pattern. It shows, above normal temperatures and below normal rainfall and snowfall for December 3 - 7, 2021.

Valley highs hit the low 80s Sunday and will stay in the low 80s through the end of the week. The low 80s are not typical for the start of December but also not unprecedented. Weather records show, December 1st has had a high of 80 degrees about 4 times.

What does this all mean, state wide we are in for lots of sunshine, warm afternoons and dry conditions. Even Northern Arizona will see temperatures that are more spring like than winter.

By the end of the week, high pressure will shift slightly dropping us back into the upper 70s but, still well above average.

Overnights will be chilly though, low to mid 50s all week.


2021 Rainfall totals:

Sky Harbor Official Rainfall: 5.58" (-0.86" from average)

Valley Average (Phoenix Rainfall Index): 7.02"

Daily rainfall reports from all across the Valley can be found here.


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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