All-time weather records — Oro Valley, AZ

Record high
115.0°F
June 20, 2016
Record low
10.9°F
January 15, 2013
Wettest day
2.88 in
September 9, 2014

Climate change signal in Oro Valley

73.8%

of Oro Valley's all-time daily heat records were set in the last decade (270 of 366 records since 2015).

52.2%

of all-time daily cold records were set in the last decade (191 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 #
2000s
29
45
2010s
158
198
2020s
179
123

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 2007, the latest in 2026. Period of observation: 2007-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 82.0°F — Jan 2, 2012 10.9°F — Jan 15, 2013 1.78 in — Jan 31, 2015
February 91.0°F — Feb 28, 2026 10.9°F — Feb 4, 2011 1.15 in — Feb 15, 2018
March 102.9°F — Mar 20, 2026 19.0°F — Mar 1, 2021 0.79 in — Mar 8, 2010
April 100.9°F — Apr 23, 2012 21.9°F — Apr 5, 2023 1.47 in — Apr 1, 2024
May 108.0°F — May 30, 2020 30.9°F — May 1, 2010 0.41 in — May 22, 2009
June 115.0°F — Jun 20, 2016 45.0°F — Jun 6, 2008 1.47 in — Jun 30, 2016
July 111.9°F — Jul 13, 2020 51.1°F — Jul 24, 2012 2.02 in — Jul 25, 2022
August 113.0°F — Aug 7, 2025 48.0°F — Aug 4, 2012 1.70 in — Aug 11, 2021
September 109.0°F — Sep 11, 2023 43.0°F — Sep 25, 2017 2.88 in — Sep 9, 2014
October 105.1°F — Oct 2, 2024 21.9°F — Oct 29, 2009 1.22 in — Oct 14, 2018
November 93.9°F — Nov 4, 2009 15.1°F — Nov 30, 2010 2.01 in — Nov 23, 2013
December 86.0°F — Dec 23, 2025 14.0°F — Dec 1, 2010 2.02 in — Dec 1, 2007

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