April Temperature and Precipitation Normals (1971-2000)
                       and Extremes for Houston (1889-2009)
                                (last update 4/23/09)
                              
    --------------- TEMPERATURE ---------------------    ------ PRECIPITATION -----
     NORMAL   RECORD       LOW      RECORD     HIGH       RECORD    CUMULATIVE PCPN 
    MAX MIN  MAX YEAR      MAX     MIN YEAR    MIN         PCPN      DAILY  YEARLY 
    --------------------------------------------------   --------------------------                              
 1  77  56   89  1936    55 1898   39  1987   72 2006    2.26 1945    0.11  10.13 
 2  77  56   89  1939    54 1992   38  1996   72 1982    4.75 1890    0.22  10.24
 3  77  56   87  2006*   61 1936   31  1987   72 2001    3.09 1993    0.33  10.35
 4  77  56   88  1897    56 1949   34  1987   72 2001    3.35 1922    0.44  10.46 
 5  77  56   91  1982    57 1945   38  1973   72 1965    2.61 1991    0.55  10.57
 
 6  78  56   88  1909    55 1973   37  1970   72 2003    1.90 1899    0.66  10.68
 7  78  56   91  1907    54 1983   32  1971   72 1999    2.28 1993    0.77  10.79
 8  78  56   92  1986    42 1938   35  1971   73 1999    3.26 2002    0.88  10.90  
 9  78  56   92  1963    46 1928   36  1973   72 2001    2.68 1913    0.99  11.01
10  78  57   92  1963    43 1928   31  1973   73 1965    2.57 2004    1.10  11.12 
 
11  78  57   89  1934    60 1959   38  1989   74 1965    1.67 1959    1.21  11.23
12  78  57   89  1981    55 1940   41  1900   74 1965    4.04 1923    1.32  11.34
13  78  57   92  1996    51 1980   39  1940   74 1991    6.43 1929    1.44  11.46
14  79  57   89  1996    62 1959   39  1980   73 1972    3.52 1966    1.56  11.58
15  79  57   90  1944    60 1928   38  1928   71 2001    3.05 1954    1.68  11.70
 
16  79  57   92  1987    63 1923   38  1983   74 1982    4.70 1912    1.80  11.82
17  79  58   92  2006*   60 1921   38  1999   74 1967    1.90 2009    1.92  11.94
18  79  58   94  1987    58 1998   42  1999   72 1970    8.16 1976    2.04  12.06
19  80  58   92  1987    63 1907   40  1901   73 1996    2.77 1931    2.16  12.18
20  80  58   93  1987    59 1907   44  1901   74 1964    2.70 1985    2.28  12.30
 
21  80  59   90  1987*   58 1907   42  1978   74 1963    3.76 1890    2.40  12.42
22  80  59   90  2009    56 1982   43  1993*  74 1967    1.50 1996    2.53  12.55
23  81  59   91  1999*   58 1907   44  1998   76 1967    2.40 1981    2.66  12.68
24  81  59   92  1894    60 1982   46  1995   74 1964    2.24 1918    2.79  12.81
25  81  60   90  2006*   66 1997   41  1910   75 1967    2.50 1905    2.92  12.94
 
26  81  61   91  1988*   61 1947   46  1978*  75 1994    3.52 1990    3.05  13.07
27  81  61   93  1933    61 1997   47  1978   77 1991    2.72 1957    3.18  13.20
28  81  61   95  1987    66 1941   47  1978   75 1994    3.76 1957    3.32  13.34
29  81  61   92  1987    67 1904   46  2008   75 1970    2.86 1950    3.46  13.48
30  81  61   92  1981    53 1925   42  1908   75 1967    3.20 1903    3.60  13.62

* indicates a record that has been tied on a previous year 

April Normals
 high:             79.1F    
 low:              57.9F  
 mean temperature: 68.5F   
 rainfall:         3.60"
 heating DD           36            
 cooling DD          135