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(1981-2010)    Record            
April              0                  1   in 1896 and 1925
May               0.2                 4   in 1911
June              1.7                 9   in 1994
July              3.9                17   in 1988
August            3.2                15   in 1995
September         0.5                 7   in 1881
October            0                  2   in 1884
Year              9.5                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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