National Weather Service United States Department of Commerce

 

 

 

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

(100 Degree occurrences since 1872 = 98)


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 2021 5
- 1990 5
- 1989 5
6 2006 4
- 1878 4
8 2008 3
- 2007 3
- 2003 3
- 1954 3
12 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 14 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 6/15/2021 6/17/2021
- 3 7/19/2012 7/21/2012
7 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

(Earliest occurrence on 6/11/2013, latest occurrence was 9/5/2020)

Date  
7/28/2021 100
7/8/2021 102
6/17/2021 100
6/16/2021 100
6/15/2021 101
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 2021 59
- 2018 59
7 2002 56
8 2016 55
  2005 55
10 2013 54
  2007 54
  2006 54
13 1978 52
14 2011 50
  1964 50
  1960 50
  1874 50
18 2010 49
  1980 49
20 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


 

 

Denver's Warmest Summers
(June through August)

 
    Average
Rank Year Temp
1 2012 76.3
2 2020 74.9
3 2021 74.6
4 1994 74.1
- 1934 74.1
6 1936 74.0
7 2006 73.9
8 1980 73.8
9 2011 73.7
10 1881 73.7
 

 

Denver's Coolest Summers
(June through August)

Rank Year Average
    Temp
1 1915 65.8
2 1967 66.0
3 1895 66.4
4 1904 66.7
5 1891 67.2
6 1906 67.4
7 1928 67.5
- 1927 67.5
- 1912 67.5
10 2004 67.6