The average high temperature for December 7th is 67º, but this year, Phoenix Sky Harbor hit 80º. The record for the day is 83º, which was set back in 1938.

So how rare are 80º days in December? The last time Phoenix had an 80º+ temperature in December was back in 2017, and before that it was in 2013. Since 1896, when records began in Phoenix, there have been 31 years with a high of 80º+ in December.

Another way to examine how rare this is, look at the total number of days. Out of 3,851 December days on record, only 62 of them have seen a high of 80º+. That's only 1.6% of December days!

The most number of days in December with a high of 80º+ was 7, set back in 1980.

High temperatures are forecast to be right around 80º tomorrow as well, which would make it the 2nd day this year with a high of 80º+ in December. Only 14 years have had 2 or more days with high temperatures of 80º+ in December (see list below).

• 7 days: 1980
• 5 days: 1939, 1940, 1950
• 4 days: 1965
• 3 days: 1938
• 2 days: 1917,1946,1949,1977,1981,2003,2010,2017