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Denver's 100 Degree Days and Streaks
Denver's Top 20 Seasonal 90 Degree Days
Denver's Consecutive 90 Degree Day Streaks
Denver's Warmest Summers (June-August)

List of 100 Degree Days and Streaks at Denver (1872-Present)

(100 Degree occurrences since 1872 = 95)

105 Degrees Highest Temperature recorded in Denver
(June 28, 2018, June 26, 2012, June 25, 2012, July 20, 2005 and August 8th, 1878)

Greatest Number of 100 Degree Days by Year

Rank	Year	Number
1	2012	13
2	2005	7
3	1990	5
-	1989	5
5	2006	4
-	1878	4
7	2008	3
-	2007	3
-	2003	3
-	1954	3
11	2020	2
-	2019	2
-	2018	2
-	2017	2
-	2013	2
-	1973	2
-	1971	2
-	1962	2
-	1910	2
-	1902	2
-	1876	2
-	1874	2

Overall, it has been fairly rare to have 2 consecutive days of 100 degrees or more. In fact, there have only been 13 occurrences since 1872.

Consecutive 100 Degree Days since 1872

Rank	Number	Start Date	End Date
1	5	6/22/2012	6/26/2012
-	5	7/19/2005	7/23/2005
-	5	7/4/1989	7/8/1989
4	4	6/29/1990	7/2/1990
5	3	7/19/2012	7/21/2012
6	2	6/27/2018	6/28/2018
-	2	7/1/2012	7/2/2012
-	2	8/1/2008	8/2/2008
-	2	7/15/2006	7/16/2006
-	2	7/5/1973	7/6/1973
-	2	7/11/1954	7/12/1954
-	2	8/2/1878	8/3/1878
-	2	7/3/1874	7/4/1874

List of 100 Degree Occurrences since 1872

Date
9/5/2020	101
8/18/2020	100
9/2/2019	100
7/19/2019	101
6/28/2018	105
6/27/2018	101
7/19/2017	100
7/6/2017	100
7/10/2016	102
7/7/2014	100
7/11/2013	100
6/11/2013	100
7/23/2012	100
7/21/2012	102
7/20/2012	101
7/19/2012	100
7/15/2012	100
7/2/2012	101
7/1/2012	101
6/26/2012	105
6/25/2012	105
6/24/2012	102
6/23/2012	104
6/22/2012	102
6/18/2012	100
7/17/2010	102
8/2/2008	103
8/1/2008	104
7/20/2008	100
7/17/2007	100
7/2/2007	100
6/24/2007	100
7/19/2006	100
7/16/2006	103
7/15/2006	101
6/14/2006	102
7/30/2005	101
7/23/2005	102
7/22/2005	102
7/21/2005	104
7/20/2005	105
7/19/2005	101
7/16/2005	102
7/24/2003	100
7/16/2003	101
7/13/2003	100
8/16/2002	100
7/1/2001	101
7/6/2000	101
7/20/1998	100
6/26/1994	104
6/25/1991	100
7/2/1990	100
7/1/1990	102
6/30/1990	102
6/29/1990	102
6/27/1990	102
7/8/1989	103
7/7/1989	102
7/6/1989	102
7/5/1989	101
7/4/1989	101
7/21/1981	100
8/6/1980	100
7/6/1973	103
7/5/1973	100
7/30/1972	100
7/17/1971	101
7/12/1971	101
8/8/1969	100
8/14/1962	100
8/10/1962	100
7/12/1954	101
7/11/1954	102
6/23/1954	102
7/20/1939	102
8/1/1938	100
7/23/1936	100
7/19/1934	100
7/22/1931	100
7/26/1910	100
7/23/1910	101
8/1/1902	100
7/15/1902	100
8/1/1901	100
7/31/1889	100
7/11/1888	100
8/8/1878	105
8/3/1878	100
8/2/1878	100
7/14/1878	100
8/12/1876	100
7/6/1876	101
7/4/1874	102
7/3/1874	101

Denver's Top 20 Seasonal 90 Degree Days (1872-Present)

Rank	Year	Number
1	2020	75
2	2012	73
3	2000	61
4	1994	60
5	2018	59
6	2002	56
7	2016	55
-	2005	55
9	2013	54
-	2007	54
-	2006	54
12	1978	52
13	2011	50
-	1964	50
-	1960	50
-	1874	50
17	2010	49
-	1980	49
19	2019	48
-	2017	48
-	2015	48

Denver's Consecutive 90 Degree Day Streaks (1872-Present)

Rank	Number	Start Date	End Date
1	24	7/11/2012	8/3/2012
-	24	7/13/2008	8/5/2008
3	18	7/15/2011	8/1/2011
-	18	7/6/1901	7/23/1901
-	18	7/1/1874	7/18/1874
6	17	8/11/2020	8/27/2020
-	17	6/29/2000	7/15/2000
-	16	7/18/1987	8/2/1987
9	15	6/22/2012	7/6/2012
-	15	7/7/1934	7/21/1934
11	13	6/21/2002	7/3/2002
-	13	7/10/1878	7/22/1878
13	12	7/2/2020	7/13/2020
-	12	7/16/2016	7/27/2016
-	12	7/5/2005	7/16/2005
-	12	7/10/2003	7/21/2003
-	12	7/31/2000	8/11/2000
-	12	6/30/1989	7/11/1989
-	12	7/2/1966	7/13/1966
-	12	7/14/1963	7/25/1963
21	11	6/29/2007	7/9/2007
-	11	6/28/2001	7/8/2001
-	11	6/23/1990	7/3/1990
-	11	6/20/1900	6/30/1900
-	11	7/29/1878	8/8/1878

		Average
Rank	Year	Temp
1	2012	76.3
2	2020	74.9
3	1994	74.1
-	1934	74.1
5	1936	74.0
6	2006	73.9
7	1980	73.8
8	2011	73.7
-	1881	73.7
10	2007	73.5

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