National Weather Service United States Department of Commerce

Extreme Temperature Facts for Phoenix,Yuma, and El Centro

 

 

Phoenix

Period of Record (POR)

(1896-2020)

Yuma

Period of Record (POR) (1878-2020)

El Centro 

Period of Record (POR) (1926-2020)

Average First 100° F Day May 11 (POR)
May 2 (1991-2020)
Apr 29 (POR)
Apr 25 (1991-2020)

Apr 30 (POR)
Apr 28 (1991-2020)

Earliest First 100° F Day 26 Mar 1988 12 Mar 1916 15 Mar 1934
Latest First 100° F Day 18 Jun 1913 13 Jun 1971 15 Jun 1998
Average Last 100° F Day Sep 29 (POR)
Oct 5 (1991-2020)
Oct 4 (POR)
Oct 6 (1991-2020)
Oct 6 (POR)
Oct 9 (1991-2020)
Earliest Last 100° F Day 2 Sep 1904 5 Sep 1976 1 Sep 1976
Latest Last 100° F Day 27 Oct 2016 25 Oct 1959 7 Nov 2008
Average number of 100° F or greater days per year 93 (POR)
111 (1991-2020)
109 (POR)
118 (1991-2020)
109 (POR)
116 (1991-2020)
Fewest number of 100° F or greater days 48 (1913) 80 (1884) 82 (1976)
Greatest number of 100° F or greater days 145 (2020) 148 (2020) 144 (2020)
Longest stretch of 100° F or greater days 76 (10 Jun 1993 - 24 Aug 1993) 99 (31 May 2006 - 6 Sep 2006) 99 (31 May 2006 - 6 Sep 2006)
Average First 110° F Day 18 Jun (POR)
11 Jun (1991-2020)
14 Jun (POR)
11 Jun (1991-2020)
13 Jun (POR)
14 Jun (1991-2020)
Earliest First 110° F Day 8 May 1989 2 May 1947 2 May 1947
Latest First 110° F Day 1911 No 110° F Day 22 Jul 1921 12 Jul 1982
Average Last 110° F Day 12 Aug (POR)
26 Aug (1991-2020)
1 Sep (POR)
6 Sep (1991-2020)
4 Sep (POR)
5 Sep (1991-2020)
Earliest Last 110° F Day 5 Jun 1912 11 Jul 1904 25 Jul 1988
Latest Last 110° F Day 19 Sep 2010 2 Oct 1980 1 Oct 1980
Average number of 110°F or greater days per year 12 (POR)
21 (1991-2020)
20 (POR)
25 (1991-2020)
22 (POR)
25 (1991-2020)
Fewest number of 110° F or greater days None (1911) 1 (1904) 2 (1991)
Greatest number of 110° F or greater days 53 (2020) 53 (1994) 53 (2016)
Longest stretch of 110°F or greater days 18 (12 Jun 1974 - 29 Jun 1974) 18 (24 Jul 1995 - 10 Aug 1995) 22 (8 Jul 2016 - 29 Jul 2016)
Top 5 Hottest Days

1. 122 (26 Jun 1990)
2. 121 (28 Jul 1995)
3. 120 (25 Jun 1990)
4. 119 (20 Jun 2017)
    119 (29 Jun 2013)

1. 124 (28 Jul 1995)
2. 123 (1 Sep 1950)
3. 122 (26 Jun 1990)
4. 120 (20 Jun 2017 and 5 other times)
1. 122 (22 Jun 2017)
2. 121 (5 Sep 2020)
3. 121 (24 Jul 2018)
4. 121 (27 Jul 2017 and 3 other times)
Average number of 32° F or lower days per year 8 (POR)
1 (1991-2020)
3 (POR)
0 (1991-2020)
6 (POR)
3 (1991-2020)
Greatest number of 32° F or lower days 35 (1964) 15 (1911) 26 (1964)
Top 5 Coldest Days

1. 16 (7 Jan 1913)
2. 17 (6 Jan 1913)
3. 19 (7 Jan 1971)
    19 (8 Jan 1913)
5. 20 (8 Jan 1971 and 2 other times)

1. 22 (24 Jan 1937)
    22 (26 Dec 1950)
    22 (20 Jan 1883)
4. 24 (8 Jan 1971 and 2 other times)
1. 16 (22 Jan 1937)
2. 17 (23 Jan 1937)
3. 19 (24 Jan 1937)
4. 21 (14 Jan 2007 and 5 other times)