National Weather Service United States Department of Commerce

 

Hottest Temperatures on Record

Temperature (°F) Date
112 July 14, 1954
110 July 14, 1936
108 August 8 and 9, 1934
July 12 and 13, 1936
107 July 22, 1901
July 24, 1934
July 15, 1936
106 July 21, 1901
August 4, 1918
July 20-22, 1934
July 27, 1936
August 18, 1936
July 12, 1954
July 12 and 13, 1966

 

Highest Dew Point (since 1948)

Dew Point (°F) Date
83 August 4, 2008
82 July 27, 2023
August 19, 1993


 

Highest Heat Index (since 1948)

Heat Index (°F) Date
120 July 15, 1980
118 July 13, 1995
July 14, 1980
117 August 24, 2023
116 August 3, 1987
July 13, 1981
July 19, 1980
July 12, 1980
July 9, 1980
July 1, 1980
115 July 24, 2016
August 2, 1987
NOTE: Based on hourly temperature and dew point observations, since this is not directly measured.

 

 

Days At or Above 90°

Most Days Year Least Days Year
70 1936 4 1904
68 1934 5 2004
64 1913 6 1882, 1889, 1950
63 1944, 2012 7 1915, 2008
62 1933, 1983 9 1884, 1951, 1992


 

Days At or Above 100°

Most Days Year Longest Period
Below 100°
Dates
29 1936 5,891 days July 15, 1995 to August 31, 2011
18 1934 4,382 days * August 1, 2012 to July 31, 2024
11 2012 4,011 days July 15, 1890 to July 9, 1901
10 1931 3,616 days September 7, 1954 to August 1, 1964
9 1954 3,599 days July 25, 1901 to June 2, 1911

* active streak as of July 31, 2024

 

Consecutive Days of Highs 90° or Above

Number of Days Dates Highest Temperature
During Period
22 June 28 to July 19, 1921 100 on July 13
21 August 8-28, 1936 106 on August 18
21 July 11-31, 1916 102 on July 29
20 July 9-28, 1901 107 on July 22
18 July 19 to August 5, 1940 102 on July 25
18 July 2-19, 1936 110 on July 14
18 July 17 to August 3, 1987 100 on August 2-3


 

Consecutive Days of Highs 100° or Higher

Number of Days Dates
12 July 4-15, 1936
6 July 9-14, 1966
6 July 25-30, 1916
6 Aug. 21-26, 1936
6 July 20-25, 1934


 

Most Recent Occurrences of Highs 100° or Higher

Date High Temperature (°F)
July 25, 2012 103
July 23, 2012 103
July 18, 2012 103
July 7, 2012 104
July 6, 2012 104


Earliest and Latest Occurrences of Indicated Temperatures

Temperature Earliest 1st Occurrence Latest 1st Occurrence Latest Last Occurrence
70 Jan. 7, 1907 Apr. 24, 1984 Dec. 28, 1984
80 Mar. 3, 1974 May 28, 1919 Nov. 4, 1978
90 Mar. 21, 1907 Aug. 15, 2000 Oct. 11, 1962
100 May 31, 1934 Several years
without 100 deg.
Sep. 29, 1953


 

Monthly Records for Highs 90° or Higher

May June July August September October
11 days
(1962)
23 days
(1933, 1934)
28 days
(2012)
27 days
(1947)
17 days
(1931)
4 days (1897)
10 days
(1977)
20 days
(1971)
27 days
(1901)
22 days
(1936)
16 days
(1939)
2 days
(1963, 2006)
9 days
(1911, 1944,
1987)
18 days
(1944, 1953)
26 days
(1916)
21 days
(1900, 1983, 2007)
14 days
(1897)
1 day
(several, most
recently in 2019)
8 days
(1934, 1941, 2018)
17 days
(1952)
25 days
(1921, 1936)
19 days
(1913, 1995)
13 days
(1933, 2005)
 
7 days
(1921)
16 days
(1913, 1954,
1963, 2016)
24 days
(1983)
18 days
(1937, 1955, 2012)
12 days
(1925, 1971)
 

 


Records began in 1879