11 Days June 30-July 10, 1878. 11 straight days above 90 (exact daily highs not avaliable). Each day average daily tempe
TEMPERATURES WARM TEMPERATURES Longest Heatwaves 13 Days July 4-16, 1988 High temperatures: 93, 94, 98, 101, 99, 99, 96, 91, 90, 91, 92, 93, 103 11 Days June 30-July 10, 1878 11 straight days above 90 (exact daily highs not avaliable) Each day average daily temperature was 80 degrees or higher 10 Days August 8-17, 1988 High temperatures: 91, 94, 93, 96, 92, 94, 96, 90, 89, 100 Most Intense Heatwaves 8 Days July 8-15, 1936 High temperatures: 95, 101, 101, 94, 98, 93, 102, 91 5 Days August 4-8, 1918 High temperaures: 94, 101, 103, 101, 93
4 Days September 5-8, 1881 Highs: 101, 102, 100, 97
Other notable heatwaves 11 Days July 4-14, 1881 Daily average temperature was 80 or higher for 11 straight days. 9 of 10 days June 28 - July 7 2012 Temps at least 90 Highs: 95, 97, 89, 94, 92, 90, 96, 91, 97, 98 8 Days June 13-20, 1994 Record high 6 days in a row (longest string) and in 7 or 8 days: Highs: 92, {92}, 96, 97, 95, 97, 97, 95 {} not a record 8 Days August 13-20, 1995 High Temperatures: 93, 94, 96, 93, 94, 93, 93, 92 7 Days July 28-August 3, 1995 High temperatures: 91, 90, 92, 92, 94, 94, 96 6 Days
July 7-12, 1876
6 straight days above 90 (not avaliable)
5 Days August 21-25, 1936 High temperatures: 98, 95, 95, 90, 93 7 out of 10 days
July 22-31, 1999
High temperatures at least 90.
Autumn Heatwaves 9 days September 19-27, 2017 High temperatures: 84, 84, 86, 88, 89, 90, 89, 89, 91 5 Days September 18-22, 1895 High temperatures: 92, 92, 94, 93, 94
3 Days November 26-28, 1990 High temperatures: 68, 75, 73
4 Days November 11-14, 1879 High temperatures: 76, 73, 73, 76
3 Days October 14-16, 1897 High temperatures: 86, 87, 87
TEMPERATURES WARM TEMPERATURES Winter Heatwaves 4 Days January 20-23, 1906 High temperatures: 66, 74, 75, 66 4 Days December 2-5, 1982 High temperatures: 66, 74, 69, 68 10 Days November 28-December 7, 1998 High temperatures: 63, 66, 68, 60, 62, 63, 63, 64, 70, 68 8 Days February 18-25, 2017 High temperatures: 68, 65, 61, 65, 66, 69, 76, 66 Spring Heatwaves 11 days March 13 - 23 2012 High Temperatures: 72, 75, 74, 70, 77, 72, 75, 80, 77, 81, 81 5 Days March 12-16, 1990 High temperatures: 78, 78, 79, 80, 71 5 Days April 24-28, 1990 High temperatures: 82, 87, 87, 89, 88 6 Days May 6-11, 2015 High temperatures: 83, 85, 88, 87, 88, 88 4 Days May 19-22, 1911 High temperatures: 92, 92, 92, 93 Highest Temperatures on Record
103 103 103 102 102 101 101 101 101 101 101 101 101 101 100 100 100 100 100 100
Jul 16, 1988 Aug 6, 1918 Jul 10, 1881 Jul 14, 1936 Sep 6, 1881 Jul 7, 1988 Jul 9, 1936 Jul 10, 1936 Aug 5, 1918 Aug 7, 1918 Jul 17, 1887 Jul 18, 1878 Sep 5, 1881 Jul 9, N/A Jul 15, 1995 Aug 17, 1988 Jul 4, 1911 Jul 20, 1878 Sep 7, 1881 Sep 10, 1884
Warmest Days on Record (Highest Mean Temps) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
92 91 90 90 89 89 88 88 88 88 88 88 88 88 88 88 87 87 87 87 87
Aug 6, 1918 Jul 10, 1881 Aug 5, 1918 Jul 1, 1901 Jul 20, 1930 Aug 31, 1880 Sep 7, 1881 Sep 6, 1881 Jul 3, 1898 Jul 9, 1876 Jul 10, 1936 Jul 16, 1980 Jul 18, 1878 Jul 21, 1930 Jul 25, 1934 Jul 28, 1901 Jul 26, 1892 Jul 14, 1936 Aug 30, 1880 Aug 7, 1918 Jun 22, 1988
