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MOST ACCURATE FORECAST: Record-breaking warmth possible in Phoenix this week!

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PHOENIX — It's a warm start to December in the Valley!

Temperatures topped out in the low 80s across the Phoenix metro area on Monday and will do so again on Tuesday.

Phoenix could even break the record on Tuesday with a forecast high of 82 degrees. The current record is 81 set in 1940.

Typically, the last 80-degree day of the year in Phoenix is around November 24. However, last year’s happened on December 17 and the latest on record was December 30, 1980.

Temperatures are expected to drop a few degrees after Tuesday, but remain in the upper 70s for the rest of the week. That's nearly 10 degrees above normal for this time of year.

As high pressure remains in control, our forecast will stay sunny and dry all week long.

Early next week, low pressure will pass to our north taking a bit of the edge of our December warmth.

Phoenix will drop into the mid 70s by Monday, but that is still several degrees above normal for this time of year.

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2024 Sky Harbor Official Rainfall to date: 4.54" (-1.98" from average)

Monsoon 2024 Sky Harbor Official Rainfall: 0.74" (-1.69" from average)
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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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