Extreme HeatRisk This Week

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First and last occurrences of

high and low temperature levels in Tucson, Arizona

HIGH TEMPERATURE (1895-2025) as of June 15th
High temp	FIRST OCCURRENCE						LAST OCCURRENCE
High temp	2025	Average	Normal	Earliest	Latest		2025	Average	Normal	Earliest	Latest
=> 80	Jan. 3	Feb 9	Feb 1	1/1/2012	5/ 6/1905		??	Nov 25	Nov 29	10/16/1972	12/31/1917
=> 85	Jan. 3	Mar 14	Mar 5	1/ 3/2025*	5/15/1905		??	Nov 8	Nov 11	10/10/1957	12/29/1921
=> 90	Mar. 24	Apr 8	Mar 30	2/14/1957	5/16/1933*		??	Oct 21	Oct 27	9/22/1919	11/27/2017
=> 95	Mar. 25	Apr 30	Apr 24	3/ 5/1910	6/ 6/1971		??	Oct 6	Oct 12	9/11/1974*	10/27/2016
=> 100	Apr. 11	May 24	May 18	4/11/2025	6/22/1905		??	Sep 18	Sep 24	8/ 8/1966*	10/20/2023
=> 105	June 9	Jun 11	Jun 6	5/ 3/1947	8/ 3/1975		??	Aug 9	Aug 21	6/21/1897	10/ 6/2024
=> 110	June 15	Jun 28	Jun 30	5/29/1910	8/19/1915		??	Jul 9	Jul 19	6/ 8/1985	9/10/2023

LOW TEMPERATURE (1894-2025) as of March 20th
Low temp	FIRST OCCURRENCE						LAST OCCURRENCE
Low temp	2024/25	Average	Normal	Earliest	Latest		2025	Average	Normal	Earliest	Latest
< 40	Nov. 7	Nov 7	Nov 10	10/ 5/1908	12/16/2021		Mar. 20	Apr 6	Mar 25	2/6/2014	5/20/1902
<= 35	Nov. 8	Nov 17	Nov 24	10/12/1924	1/24/1978		Jan. 31	Mar 18	Mar 1	1/4/2015	5/ 4/1899
<= 32	Jan. 11	Nov 26	Dec 3	10/16/1899	1/25/1978		Jan. 23	Mar 2	Feb 7	12/27/2009	5/ 3/1899
<= 30	Jan. 13	Dec 5	Dec 8	10/22/1908	2/ 2/1956		Jan. 23	Feb 18	Jan 24	11/24/1979	4/17/1924
<= 25	Jan. 23	Dec 26	Jan 5	11/12/1898	3/15/1907		Jan. 23	Jan 29	Jan 16	11/17/1958	3/31/1897
<= 20	??	Jan 2	Jan 15	11/19/1921	3/ 4/1965		??	Jan 9	Jan 15	12/7/1960	3/ 4/1965
<= 15	??	Jan 3	N/A	12/11/1916	1/22/1937		??	Jan 3	N/A	12/11/1916	1/22/1937

Average = Historical period of record (1894-2025)

Normal period of record (1991-2020)

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