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