PITTSBURGH WARM TEMPERATURES
Based on records since January 1871, updated monthly.
Longest Heat Waves
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
Each day above 90 (exact daily highs not available)
Each day the 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 Heat Waves
8 Days July 8-15, 1936
High Temperatures: 95,101,101,94,98,93,102,91
5 Days August 4-8, 1918
High temperatures: 94,101,103,101,93
4 Days September 5-8, 1881
Highs: 101,102,100,97
Other Notable Summer Heat Waves
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 Highs 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 of 8 days:
Highs: 92,{92},96,97,95,97,97,95 {} not a record
8 Days August 13-20, 1995
Highs: 93,94,96,93,94,93,93,92
7 Days July 28 - August 3, 1995
Highs: 91,90,92,92,94,94,96
6 Days July 7-12, 1876 6 straight days above 90 (not available)
5 straight days and 7 out of 8 days July 28 - August 4, 2002 Highs hit the 90s.
Highs: 90,91,86,91,94,95,93,95
5 Days August 21-25, 1936
Highs: 98,95,95,90,93
7 of 10 days July 22-31, 1999 Highs hit the 90s.
Highs: 92,94,92,91,87,94,84,86,93,95
Autumn Heat Waves
5 Days September 18-22, 1895 3 Days November 26-28, 1990
High temperatures: 92,92,94,93,94 High temperatures: 68,75,73
4 Days November 11-14, 1879 3 Days October 14-16, 1897
High temperatures: 76,73,73,76 High temperatures: 86,87,87
6 Days October 4-9, 2007
High temperatures: 86,83,86,86,87,80
Winter Heat Waves
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
Spring Heat Wave
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
4 Days May 19-22, 1911
High temperatures: 92,92,92,93
Highest Temperatures on Record Warmest Days on Record
(Highest Mean Temps)
103 Jul 16, 1988 1. 92 Aug 6, 1918
103 Aug 6, 1918 2. 91 Jul 10, 1881
103 Jul 10, 1881 3. 90 Aug 5, 1918
102 Jul 14, 1936 4. 90 Jul 1, 1901
102 Sep 6, 1881 5. 89 Jul 20, 1930
101 Jul 7, 1988 6. 89 Aug 31, 1880
101 Jul 9, 1936 7. 88 Sep 7, 1881
101 Jul 10, 1936 8. 88 Sep 6, 1881
101 Aug 5, 1918 9. 88 Jul 3, 1898
101 Aug 7, 1918 10. 88 Jul 9, 1876
101 Jul 17, 1887 11. 88 Jul 10, 1936
101 Jul 18, 1878 12. 88 Jul 16, 1980
101 Sep 5, 1881 13. 88 Jul 18, 1878
101 Jul 9, N/A 14. 88 Jul 21, 1930
100 Jul 15, 1995 15. 88 Jul 25, 1934
100 Aug 17, 1988 16. 88 Jul 28, 1901
100 Jul 4, 1911 17. 87 Jul 26, 1892
100 Jul 20, 1878 18. 87 Jul 14, 1936
100 Sep 7, 1881 19. 87 Aug 30, 1880
100 Sep 10, 1884 20. 87 Aug 7, 1918
87 Jun 22, 1988
HIGHEST MINIMUM TEMPERATURES ON RECORD
82 Jul 1, 1901
81 Aug 6, 1918
80 Jul 21, 1930
79 Jul 28, 1901
79 Aug 5, 1918
79 Jul 20, 1930
79 Jul 25, 1934
79 Jul 28, 1901
78 Jun 20, 1924
78 Jul 6, 1911
78 Jul 10, 1881
78 Jul 17, 1990
78 Jul 18, 1887
78 Jul 26, 1892
WARMEST MONTHS ON RECORD WARMEST YEARS ON RECORD
(monthly average) (annual average)
80.3 July 1887 1. 55.4 1921
79.5 July 1878 2. 54.7 1931
78.9 July 1901 3. 54.7 1900
78.7 August 1900 4. 54.6 1898
77.7 August 1995 5. 54.5 1894
77.6 July 1934 6. 54.5 1881
77.6 July 1921 7. 54.2 2012
77.6 July 1885 8. 54.2 1991
77.6 July 1876 9. 54.2 1949
77.2 July 1898 10. 54.2 1884
77.2 September 1881 11. 54.2 1880
77.1 July 1873 12. 54.1 1890
77.0 July 1931 13. 54.1 1887
77.0 July 1881 14. 54.0 1998,1922
NUMBER OF DAYS WITH TEMPERATURES 90 DEGREES OR HIGHER
Average Record
April 0 1 in 1896 and 1925
May 0.3 4 in 1911
June 1.7 9 in 1994
July 3.3 17 in 1988
August 1.7 15 in 1995
September 0.5 7 in 1881
October 0 2 in 1884
Year 7.5 38 in 1988
No days of 90 degrees or higher have ever been recorded in the months of
January, February, March, November or December.
WARMEST DAYS EVER RECORDED FOR EACH MONTH
(Based on daily mean temperatures)
JANUARY FEBRUARY MARCH
68 Jan 22 1906 67 Feb 11 1932 74 Mar 25 1929
67 Jan 25 1950 65 Feb 25 2000 74 Mar 23 1907
66 Jan 21 1907 63 Feb 15 1954 72 Mar 28 1910
64 Jan 29 1914 63 Feb 21 1997 71 Mar 27 1998
63 Jan 8 2008 63 Feb 26 2000 70 Mar 15 1990
63 Jan 27 1916 62 Feb 13 1884 70 Mar 20 1921
62 Jan 6 1946 62 Feb 25 1930 70 Mar 21 1948
62 Jan 12 1890 61 Feb 16 1954 70 Mar 22 1907
62 Jan 13 1932 70 Mar 26 1945
70 Mar 27 1921
70 Mar 29 1945
70 Mar 30 1998
70 Mar 30 1910
70 Mar 31 1998
APRIL MAY JUNE
80 Apr 24 1925 82 May 22 1911 87 Jun 22 1988
78 Apr 30 1899 82 May 21 1911 86 Jun 1 1835
77 Apr 18 1896 82 May 20 1911 85 Jun 11 1880
76 Apr 6 1929 82 May 31 1895 85 Jun 18 1994
76 Apr 7 1929 81 May 3 1887 85 Jun 25 1952
76 Apr 22 1902 81 May 12 1881 85 Jun 26 1952
76 Apr 25 1925/2009 81 May 23 1884 85 Jun 28 1971
76 Apr 27 2009 81 May 26 1880
76 APR 29 1899 81 May 27 1880
JULY AUGUST SEPTEMBER
91 Jul 10 1881 92 Aug 6 1918 88 Sep 6 1881
90 Jul 1 1901 90 Aug 5 1918 88 Sep 7 1881
89 Jul 20 1930 89 Aug 31 1880 86 Sep 5 1881
88 Jul 3 1898 87 Aug 30 1880 86 Sep 10 1884
88 Jul 9 1876 87 Aug 7 1918 85 Sep 3 1953
88 Jul 10 1936 86 Aug 4 1930
88 Jul 16 1980 86 Aug 9 1900
88 Jul 18 1878 86 Aug 11 1900
88 Jul 21 1930 86 Aug 27 1948
88 Jul 25 1934 86 Aug 28 1948
88 Jul 28 1901
OCTOBER NOVEMBER DECEMBER
79 Oct 3 1898 70 Nov 1 1950 65 Dec 6 1998
79 Oct 5 1884 69 Nov 3 1961 65 Dec 5 2001
79 Oct 4 1884 68 Nov 5 1948 65 Dec 3 1982
78 Oct 1 1927 68 Nov 7 1938 64 Dec 8 1966
78 Oct 2 1927 68 Nov 9 1879 63 Dec 7 1951
78 Oct 6 1941 68 Nov 14 1879 62 Dec 4 1982
68 Nov 18 1921 61 Dec 28 1984
68 Nov 19 1900 61 Dec 2 1982
68 Nov 20 1931
WARMEST TEMPERATURES EVER RECORDED BY MONTH
(Maximum Temperatures)
JANUARY FEBRUARY MARCH
75 Jan 25 1950 77 Feb 8 1900 84 Mar 25 1929
75 Jan 22 1906 76 Feb 16 1883 83 Mar 24 1910
74 Jan 21 1906 76 Feb 26 2000 83 Mar 27 1950
72 Jan 29 1914 75 Feb 11 1932 82 Mar 22 1938
72 Jan 31 2002 73 Feb 21 1997 82 Mar 29 1905
71 Jan 13 1890 73 Feb 25 2000 82 Mar 30 1998
70 Jan 6 1946 72 Feb 27 1880 82 Mar 30 1986
70 Jan 14 1932 71 Feb 25 2001 82 Mar 31 1998
70 Jan 28 1876 70 Feb 11 1999 81 Mar 22 2012
70 Feb 12 1884 81 Mar 23 2012
70 Feb 19 1884 81 Mar 23 1907
70 Feb 22 1930 81 Mar 26 1945
70 Feb 23 1922 81 Mar 28 1989
70 Feb 24 1906
70 Feb 25 1880
APRIL MAY JUNE
90 Apr 24 1925 95 May 2 1887 98 Jun 22 1988
90 Apr 18 1896 95 May 3 1887 98 Jun 25 1988
89 Apr 27 1990 95 May 29 1881 98 Jun 4 1895
89 Apr 23 1885 95 May 25 1875 97 Jun 16 1994
88 Apr 28 1990 94 May 30 1919 97 Jun 18 1994
88 Apr 29 1899 94 May 12 1881 97 Jun 19 1994
88 Apr 30 1899 94 May 26 1880 97 Jun 29 2012
JULY AUGUST SEPTEMBER
103 Jul 16 1988 103 Aug 6 1918 102 Sep 6 1881
103 Jul 10 1881 101 Aug 5 1918 101 Sep 5 1881
102 Jul 14 1936 101 Aug 7 1918 100 Sep 10 1884
101 Jul 7 1988 100 Aug 17 1988 100 Sep 7 1881
101 Jul 9 1936 99 Aug 27 1948 98 Sep 9 1884
101 Jul 10 1936 99 Aug 4 1930 97 Sep 1 1953
101 Jul 17 1887 97 Sep 11 1900
101 Jul 18 1878 97 Sep 8 1881
101 Jul 9 N/A
100 Jul 15 1995
100 Jul 4 1911
100 Jul 20 1878
OCTOBER NOVEMBER DECEMBER
91 Oct 3 1884 82 Nov 3 1961 74 Dec 3 1982
91 Oct 5 1879 80 Nov 1 1950 73 Dec 9 1885
90 Oct 4 1884 80 Nov 5 1948 73 Dec 5 2001
89 Oct 6 1900 79 Nov 4 2003 72 Dec 10 1971
89 Oct 2 1927 78 Nov 7 1938 71 Dec 28 1982
89 Oct 1 1889 78 Nov 2 1933 71 Dec 13 1901
77 Nov 18 1921
WARMEST AVERAGES FOR EACH MONTH
(Based on monthly mean temperatures)
JANUARY FEBRUARY MARCH
44.4 January 1880 42.7 February 1871 51.5 March 2012
41.8 January 1932 42.0 February 1890 51.2 March 1946
41.4 January 1890 40.8 February 1884 51.2 March 1945
40.8 January 1950 39.6 February 1882 50.7 March 1921
40.2 January 1913 39.2 February 1925 50.1 March 1903
39.0 January 1933 39.2 February 1891 48.8 March 1910
38.4 January 1906 39.0 February 1930 48.3 March 1973
38.1 January 2006 38.7 February 1887 47.8 March 1898
38.0 January 1949 38.5 February 1998 47.6 March 1935
37.7 January 1937 38.3 February 1932 47.4 March 1894
37.5 January 1916 38.1 February 1927 47.3 March 1871
37.1 January 1998 37.8 February 1949 46.4 March 1878
37.0 January 1876 37.8 February 1880 46.4 March 1929
36.8 January 1990 37.3 February 1909 46.2 March 1907
36.5 January 1889 37.2 February 1976 45.4 March 2000
36.2 January 1947 37.1 February 1877 45.4 March 1938
36.2 January 1953 37.1 February 1954 45.4 March 1905
35.5 January 2002 36.9 February 1990 45.2 March 1976
35.5 January 1989 36.8 February 1915 44.8 March 1927
35.3 January 1898 36.4 February 1984 44.6 March 1918/1908/1897
APRIL MAY JUNE
57.2 April 1896 69.5 May 1880 75.9 June 1934
57.2 April 1878 69.2 May 1896 75.0 June 1919
57.0 April 1941 69.0 May 1944 74.7 June 1895
56.9 April 1921 68.7 May 1991 74.6 June 1943
56.6 April 1886 68.5 May 1887 74.6 June 1892
56.2 April 1871 68.0 May 1911 74.3 June 1884
56.1 April 1955 67.6 May 1918 73.9 June 1871
55.8 April 1954 67.2 May 1881 73.8 June 1898
55.5 April 1915 66.4 May 1903 73.5 June 1890
55.4 April 2010 65.9 May 1965 73.4 June 1880
55.0 April 1985 65.5 May 2004 73.4 June 1876
55.0 April 1899 65.3 May 1962 73.3 June 1933
54.7 April 1948 65.0 May 1922 73.1 June 1925
54.6 April 1942 65.0 May 1899 73.0 June 1921
54.5 April 1991 64.8 May 1900 73.0 June 1967
54.4 April 1945 64.8 May 1871 73.0 June 1949
54.4 April 1925 64.7 May 1982 72.9 June 1994
54.3 April 2001 64.6 May 1934 72.7 June 1874
54.2 April 1880 64.5 May 1998 72.6 June 1991
54.0 April 1960 64.5 May 1902 72.6 June 1952
JULY AUGUST SEPTEMBER
80.3 July 1887 78.7 August 1900 77.2 September 1881
79.5 July 1878 77.7 August 1995 72.4 September 1884
78.9 July 1901 76.6 August 1947 72.2 September 1900
77.6 July 1934 76.6 August 1918 71.0 September 1895
77.6 July 1921 76.0 August 1881 70.8 September 1921
77.6 July 1885 75.6 August 1906 70.6 September 1925
77.6 July 1876 75.2 August 1878 70.4 September 1894
77.2 July 1898 75.2 August 1937 70.3 September 1931
77.1 July 1873 75.1 August 1988 70.2 September 1898
77.0 July 1931 75.0 August 1901 69.8 September 1930
77.0 July 1881 74.9 August 1959 69.6 September 1922
76.9 July 2011 74.9 August 1898 69.6 September 1906
76.9 July 1988 74.8 August 1876 69.4 September 1891
76.9 July 1955 74.7 August 1880 69.0 September 1933
76.8 July 2012 74.7 August 1938 68.8 September 1915
76.8 July 1879 74.6 August 1936 68.7 September 1886
76.6 July 1916 74.5 August 1980 68.6 September 1912
76.4 July 1949 74.5 August 1895 68.6 September 1908
76.3 July 1900 74.4 August 1991 68.5 September 1971
76.2 July 1894/97 74.4 August 1928 68.5 September 1961
76.0 July 2002/
1999/35
OCTOBER NOVEMBER DECEMBER
62.9 October 1900 51.6 November 1931 45.6 December 1889
62.0 October 1947 51.2 November 1902 43.0 December 1877
61.1 October 1879 50.4 November 1909 43.0 December 1923
60.6 October 1919 48.6 November 1896 42.1 December 1891
60.0 October 1881 48.2 November 2001 41.5 December 1931
59.6 October 1949 48.0 November 1948 41.0 December 1918
59.6 October 1920 47.7 November 1994 40.9 December 1881
59.5 October 1971 47.2 November 2009 39.9 December 1982
59.4 October 1899 47.2 November 1927 39.4 December 1956
59.3 October 2007 47.1 November 1985 39.3 December 1984
59.2 October 1897 46.9 November 2011 39.1 December 1911
59.2 October 1884 46.8 November 1946 38.8 December 2006
58.9 October 1882 46.8 November 1934 38.8 December 1971
58.8 October 1946 46.7 November 1999 38.8 December 1879
58.8 October 1963 46.6 November 1983 38.2 December 1994
58.4 October 1914 46.3 November 1975 38.1 December 2012
58.4 October 1941 46.2 November 1987 38.1 December 1940
58.3 October 1984 46.2 November 1899 38.0 December 1990
58.2 October 1918 45.6 November 1977 37.8 December 1998
57.9 October 1951 45.5 November 1964 37.5 December 2011,2001,1965
WARMEST TEMPERATURES SO EARLY WARMEST TEMPERATURES SO LATE
IN THE SPRING SEASON IN THE AUTUMN SEASON
78 Mar 5 2004 74 Dec 3 1982
80 Mar 8 2000 75 Nov 27 1990
82 Mar 22 1938 77 Nov 18 1921
83 Mar 24 1910 78 Nov 7 1938
84 Mar 25 1929 80 Nov 5 1948
85 Apr 2 2010 82 Nov 3 1961
86 Apr 11 1930 84 Oct 22 1947
87 Apr 17 1896 87 Oct 16 1897
90 Apr 18 1896 88 Oct 10 1949
93 May 1 1942 89 Oct 6 1900
95 May 2 1887 91 Oct 5 1879
96 Jun 3 1895 92 Sep 30 1881
98 Jun 4 1895 94 Sep 26 1881
99 Jul 3 1898 96 Sep 13 1952
100 Jul 4 1911 97 Sep 11 1900
101 Jul 7 1988 100 Sep 10 1884
103 Jul 10 1881 102 Sep 6 1881
103 Aug 6 1918
MISCELLANEOUS STATISTICS-WARM TEMPERATURES
Temperatures above 70 degrees
In January....about once every 12 years
In February...about once every 10 years
In December...about once every 15 years
Temperatures above 80 degrees
In March...about once every 8 years
In November...about once every 15 years
Temperatures above 100 degrees
In July...about once every 5 years
In August...about once every 10 years
Pittsburgh averages 7.5 days per year in which the temperature reaches 90 degrees or higher.
Warmest Seasons on Record
WARMEST WINTERS WARMEST SPRINGS
(average Dec/Jan/Feb temp) (average Mar/Apr/May temp)
43.0 1889-90 1. 56.7 1921
40.5 1931-32 2. 56.3 2012
40.3 1879-80 3. 56.1 1871
40.0 1877-78 4. 56.0 1903
37.7 1881-82 5. 55.8 1906
37.0 1948-49 6. 55.4 1991
36.6 1875-76 7. 54.9 1885
36.4 1997-98 8. 54.5 1880
36.4 1949-50 9. 54.5 1878
36.3 1918-19 10. 54.1 2010
36.0 2001-02 11. 54.0 1945
35.9 1932-33 12. 53.9 1886
35.7 1908-09 13. 53.8 1918
35.4 1891-92 14. 53.7 1946
35.4 1890-91 15. 53.5 1922
35.3 1952-53 16. 53.4 1899
35.3 1920-21 17. 53.3 1894
35.2 2011-12 18. 53.2 2004
35.2 1873-74 19. 53.2 1898
35.1 1929-30 20. 53.1 1929
34.9 1912-13 53.1 1910
34.8 1951-52 53.1 1902
34.8 1897-98 53.1 1896
34.8 1893-94
WARMEST SUMMERS WARMEST AUTUMNS
(average Jun/Jul/Aug temp) (average Sep/Oct/Nov temp)
75.8 1900 1. 60.7 1881
75.3 1876 2. 60.2 1900
75.3 1898 3. 59.8 1931
75.2 1901 4. 58.4 1884
75.1 1995 5. 58.3 1902
74.7 1887 6. 57.6 1946
74.7 1934 7. 57.5 1927
74.3 1949 8. 57.2 1897
74.2 1880 9. 57.1 1922
74.1 1877 10. 57.0 1899
74.1 1881 11. 56.9 1941
74.1 1991 12. 56.7 1915
74.0 1899 13. 56.6 1934
73.9 1878 14. 56.5 1919
73.8 1884 15. 56.3 1898
73.8 1892 16. 56.3 1908
73.8 1894 17. 56.2 1912
73.6 2010,2002, 18. 56.2 1920
1933,1921, 19. 56.1 1971
1895 20. 55.9 2007
73.5 2005,1988, 21. 55.9 1985
22. 55.9 1877
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