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\n\t\t\t\t\t\tPhoenix is getting hotter over time.\t\t\t\t\t\t\t\t\t\t\t\t\t<\/p>\n
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\n\t\t\t\t\t\tPhoenix is getting hotter over time.\t\t\t\t\t\t\t\t\t\t\t\t\t<\/p>\n
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In terms of weather, this year was a fairly unusual one for the Valley. After getting a fairly average 2.76 inches of rain<\/a> during the summer monsoon season, the Phoenix metro was doused throughout late September and October, making it this autumn the wettest one in the Valley\u2019s recorded history<\/a>, according to the National Weather Service.<\/p>\n It was a welcome relief after 2023 and 2024 \u2014 two years that both charted among the five hottest years in Phoenix history \u2014 though the fall mosquito explosion<\/a> was less than ideal.<\/p>\n While this summer\u2019s rain and the fall\u2019s major storms played a role in lowering the temperature from those scorching highs of recent memory, the data show that this year has still been historically warm.\u00a0<\/p>\n Through Dec. 10, the average temperature in Phoenix for 2025 is 77.7 degrees. If the year ended today \u2014 hypothetically \u2014 that would make 2025 the second-hottest year in Phoenix history.<\/p>\n \t\t\t\t\t\t\tThis year, make your gift count \u2013<\/strong><\/strong> \n\t\t\t\t\t\t\tOur work is funded by readers like you who make voluntary gifts because they value our work and want to see it continue. Make a contribution today to help us reach our $30,000 goal!\t\t\t\t\t\t<\/p>\n While the year isn\u2019t quite over, we can make an educated guess on where 2025 might ultimately end up in the rankings.\u00a0<\/p>\n If you were to fill out December 2025 with the average December temperature from 1991 to 2020 \u2014 55.8 degrees \u2014 the average temp for 2025 would be about 74.03 degrees, well below the hottest years in history. If you were to use the 59.2-degree average from the first 10 days of December, you\u2019d get an annual average of 77.7 degrees.<\/p>\n Through November, the 2025 average temperature on a statewide basis ranks as the 3rd warmest in the period of record. This is very consistent among all counties ranking in the top 10 historical warmest, while Mohave County is recording their warmest year on record so far. #azwx<\/a> pic.twitter.com\/CO6ktuzokW<\/a><\/p>\n \u2014 NWS Phoenix (@NWSPhoenix) December 10, 2025<\/a><\/p><\/blockquote>\n The 10 hottest years in Phoenix history<\/strong><\/p>\n So how does that incomplete average of 77.7 degrees compare to the hottest years in Phoenix\u2019s recorded history? If that mark were to hold, 2025 would rank second.<\/p>\n That\u2019d make sense, given recent trends. While 8 of the 10 coldest years in Phoenix history were from 1897 to 1919 \u2014 with 1964 and 1965 as the only exceptions \u2014 9 out of 10 of the warmest ones have occurred since 2012.<\/p>\n Here\u2019s the list:<\/p>\n 10. 2018 \u2013 76.4 degrees<\/strong><\/p>\n With January, April and September all cracking the top five hottest respective months in Phoenix history, it wasn\u2019t the deep summer of 2018 that was so hot as much as some of the more unexpected months.<\/p>\n 9. 2012 \u2013 76.7 degrees<\/strong><\/p>\n It was consistently warm throughout the year. November was among the top five warmest Novembers in the Valley\u2019s history.<\/p>\n 8. 2015 \u2013 76.7 degrees<\/strong><\/p>\n This summer had a hot June and August, and its February and March were among the warmest on record.<\/p>\n 7. 2016 \u2013 76.7 degrees<\/strong><\/p>\n February, June and October were all respectively among the hottest such months in Phoenix during the year of Pokemon Go and the rise of Donald Trump.<\/p>\n 6. 1989 \u2013 76.9 degrees<\/strong><\/p>\n There were a total of 143 days in 1989 when high temperatures reached triple digits. That year\u2019s spring was particularly warm, with April still holding the record for warmest one in recorded history.<\/p>\n 5. 2023 \u2013 77.0 degrees<\/strong><\/p>\n The summer of 2023 was downright hellish. July 2023 averaged 102.7 degrees, making it the first summer month to ever reach a triple-digit average. August was only a bit cooler at 98.8 degrees, the second-hottest one on record. An astonishing 645 people died from heat-related causes<\/a> in Maricopa County that year, a record that blew the previous year\u2019s numbers out of the water.<\/p>\n 4. 2014 \u2013 77.1 degrees<\/strong><\/p>\n The year started off relatively warm in January and February, and while summer temperatures didn\u2019t top records, they remained consistently sizzling.<\/p>\n 3. 2020 \u2013 77.2 degrees<\/strong><\/p>\n July 2020 was the third-hottest on record and August was even hotter at 99.1 degrees \u2014 the warmest one ever in Phoenix. The year holds the record for most days with temperatures reaching triple digits at 145.<\/p>\n 2. 2017 \u2013 77.3 degrees<\/strong><\/p>\n March and November were particularly warm, both placing in the top five for those months. The the summer months were consistently hot, with average temperatures between 94 and 95 degrees.<\/p>\n 1. 2024 \u2013 78.4 degrees<\/strong><\/p>\n The year before was a brutal summer of record heat deaths in the Valley, but 2024 still upstaged it. June 2024 was by the far the hottest one in history, with an average of 97 degrees. There were 70 days last year with a high temperature topping 110 degrees, easily a record.<\/p>\n \t\t\t\t\t\t\t\t
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