May
                 Temperature and Precipitation Normals (1971-2000)
                       and Extremes for Houston (1927-2008)
                               (last update 5/26/08)
                              
    --------------- TEMPERATURE ---------------------    ------ PRECIPITATION -----
     NORMAL   RECORD       LOW      RECORD     HIGH       RECORD    CUMULATIVE PCPN 
    MAX MIN  MAX YEAR      MAX     MIN YEAR    MIN         PCPN      DAILY  YEARLY 
    --------------------------------------------------   --------------------------                              
 1  81  63   94  1947    64 1970   47  2005   75 2002    4.11 1970    0.14  13.76 
 2  82  63   96  1964    69 1970   45  1976   76 2002    3.48 1944    0.28  13.90
 3  82  64   92  1984    66 1954   47  1978   77 2002    5.10 1981    0.42  14.04
 4  82  64   92  1947    73 1978   44  1978   76 2003    1.72 1953    0.57  14.19 
 5  83  64   92  1999    69 1966   49  1970   76 2007*   3.47 2008    0.72  14.34
 
 6  83  64   92  1984    71 1966   50  1970   77 1961    5.00 1938    0.87  14.49
 7  84  65   94  1998    70 1951   48  1992   77 2002    2.61 1938    1.02  14.64
 8  84  65   96  1967    72 1976   47  1982   78 2002    2.34 2005    1.17  14.79  
 9  84  65   94  1998    76 1976   46  1984   77 2002    2.42 1987    1.33  14.95
10  84  65   94  1927    72 1972   51  1984   76 2003    5.89 1968    1.49  15.11 

11  85  65   91  2002*   75 1997   47  1981   76 2002    2.16 1959    1.65  15.27
12  85  66   92  1967    71 1954   52  1960   77 2002    2.60 1930    1.81  15.43
13  85  66   93  2007    74 1954   52  1971   76 1968    2.74 1966    1.97  15.59
14  85  66   93  1995    67 1953   47  1971   78 1995    1.56 1924    2.13  15.75
15  85  66   92  2003*   75 1983   51  1976*  78 1995    4.64 1970    2.30  15.92

16  86  66   93  2003*   76 1985   47  1973   78 1974    2.80 1992    2.47  16.09
17  87  66   93  1998    74 2008   52  1970   76 1974    4.20 1989    2.64  16.26
18  87  66   94  1998    73 2002   50  1976   77 1981    6.16 1989    2.81  16.43
19  87  66   95  2003    72 1952   50  1976   75 1960    6.87 2000    2.98  16.60
20  87  66   95  2008    77 2002   54  2002*  76 1989    4.17 1947    3.15  16.77
 
21  87  67   96  2005    75 1983   57  2002   77 1953    5.45 1945    3.32  16.94
22  87  67   96  2005*   75 1997   56  2001   77 2008    3.10 1963    3.50  17.12
23  87  67   95  1996    77 1959   52  2001*  78 2008    3.99 1959    3.68  17.30
24  87  67   95  1955    76 1951   58  1940   77 2008*   3.96 1936    3.86  17.48
25  87  68   95  1927    77 1954   56  1979   78 1996    2.47 1946    4.04  17.66

26  88  68   95  1958    78 2007   57  1979   79 1996    1.36 2007    4.22  17.84
27  88  68   98  1928    76 1961   54  1961   80 1996    0.99 1968    4.40  18.02
28  88  68   96  1998*   78 2007   57  1976   81 1996    2.51 1992    4.58  18.20
29  88  68   99  1996    76 1984   56  1925   82 1996    4.33 2006    4.77  18.39
30  88  69   97  2003*   75 1984   53  1984   80 2004    2.25 1970    4.96  18.58

31  88  70   98  1998*   78 1970   51  1984   77 1985    3.45 1976    5.15  18.77

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

May Normals
 high:             85.5F    
 low:              66.1F  
 mean temperature: 75.8F   
 rainfall:         5.15"
 heating DD           0           
 cooling DD         295