All-time weather records — Phoenix, AZ

Record high
117.0°F
June 19, 2016
Record low
22.1°F
January 14, 2007
Wettest day
2.43 in
September 9, 2013

Climate change signal in Phoenix

53.6%

of Phoenix's all-time daily heat records were set in the last decade (196 of 366 records since 2015).

32.2%

of all-time daily cold records were set in the last decade (118 of 366 records since 2015).

If records were spread evenly across the station's history, you'd expect roughly 5% per decade. Decade-by-decade, here's where each record-breaking day was set:

Decade Heat records set # Cold records set #
1990s
12
31
2000s
121
139
2010s
103
131
2020s
130
65

Records are the all-time daily extremes that are still standing — each daily record can only be held by one year. The station's earliest hot record was set in 1998, the latest in 2026. Period of observation: 1998-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 82.0°F — Jan 5, 2006 22.1°F — Jan 14, 2007 2.10 in — Jan 21, 2010
February 90.0°F — Feb 27, 2026 24.3°F — Feb 3, 2011 2.24 in — Feb 13, 2003
March 102.9°F — Mar 19, 2026 32.0°F — Mar 3, 2002 1.79 in — Mar 1, 2014
April 100.9°F — Apr 22, 2012 37.0°F — Apr 2, 1999 1.75 in — Apr 2, 2004
May 109.9°F — May 29, 2000 46.9°F — May 1, 1999 0.79 in — May 15, 2015
June 117.0°F — Jun 19, 2016 57.0°F — Jun 5, 1999 0.92 in — Jun 2, 2025
July 116.1°F — Jul 20, 2023 66.0°F — Jul 1, 2004 1.56 in — Jul 26, 2005
August 115.0°F — Aug 7, 2025 69.1°F — Aug 8, 2009 1.53 in — Aug 24, 2006
September 111.9°F — Sep 4, 2020 55.9°F — Sep 24, 2017 2.43 in — Sep 9, 2013
October 108.0°F — Oct 1, 2024 39.9°F — Oct 29, 2009 2.17 in — Oct 2, 2018
November 95.0°F — Nov 5, 2020 30.2°F — Nov 29, 2010 2.29 in — Nov 20, 2019
December 82.0°F — Dec 1, 2021 28.0°F — Dec 29, 2003 1.49 in — Dec 24, 2021

Click a month to see every daily record for that month in Phoenix.