May 
                    Temperature and Precipitation Normals (1971-2000)
                       and Extremes for Houston Hobby (1931-2009)
                                (last updated 6/1/09)
								                              
    --------------- TEMPERATURE -----------------   ----- PRECIPITATION ----
     NORMAL   RECORD     LOW     RECORD    HIGH      RECORD  CUMULATIVE PCPN 
    MAX MIN  MAX YEAR    MAX    MIN YEAR   MIN        PCPN    DAILY  YEARLY 
    ---------------------------------------------   ------------------------                               
 1  83  64   94  1947  67 1970  51  1996  74 2009*  2.10 2004  0.13   14.04 
 2  83  65   92  1964  70 1970  50  1976  76 2009*  4.36 1944  0.26   14.17
 3  83  65   96  1984  64 1978  48  1978  77 1991   9.48 1981  0.39   14.30
 4  83  65   94  1947  70 1954  44  1978  76 2002   1.91 1944  0.53   14.44 
 5  84  65   94  1947  69 1966  50  1944  77 2007   1.63 1935  0.67   14.58
 
 6  84  66   94  1947  71 1966* 53  1957* 77 1975*  1.67 1982  0.81   14.72
 7  84  66   96  1998  70 1951  52  1992* 77 2003*  2.97 1938  0.95   14.86
 8  84  66   94  1967  72 1990  52  1992* 76 2009*  4.26 1991  1.09   15.00  
 9  84  67   97  1998  73 1938  50  1984  76 2002   0.97 1944  1.23   15.14
10  85  67   91  2003* 70 1997* 52  1931  76 2009*  6.35 1968  1.38   15.29 

11  85  67   92  1974  74 1997  49  1981  77 2009   1.94 2004  1.53   15.44
12  85  67   93  1967  71 1954  50  1931  77 2002*  2.57 1999  1.68   15.59
13  85  68   91  2007  73 1971  51  1931  78 1995   3.60 1982  1.83   15.74
14  86  68   93  1961  67 1953  52  1971  78 2008*  0.54 1946  1.99   15.90
15  86  68   94  1978  75 1983* 54  1976  77 1974   4.38 1994  2.15   16.06

16  86  68   93  1933  70 1945  52  1967  78 1974   1.72 1955  2.31   16.22
17  86  68   94  1998  73 2008  47  1945  77 1995   3.28 2002  2.47   16.38
18  86  69   93  2003* 73 2002  53  1945  76 1981   2.54 1953  2.64   16.55
19  87  69   94  2008  72 1952  54  2002  77 1990   3.07 1939  2.81   16.72
20  87  69   95  2008  75 2002  56  1981* 77 1990   4.21 1966  2.98   16.89
 
21  87  69   95  2005  76 1983  58  2002* 77 1953   6.33 1945  3.16   17.07
22  87  70   96  2005  76 1945  60  1983  79 2008   2.73 1965  3.34   17.25
23  87  70   93  2008* 73 1947  55  1967  80 2008   3.58 1959  3.52   17.43
24  88  70   95  1955  76 1951* 57  1940  80 2008   3.50 1936  3.71   17.62
25  88  70   94  2005  77 1954  57  1931  80 2008   2.34 1961  3.90   17.81

26  88  70   93  1958  81 2007* 60  1979* 78 2008*  2.40 1948  4.09   18.00
27  88  71   97  1973  76 1993* 55  1934  78 1996   1.68 1992  4.29   18.20
28  88  71   96  1998* 74 1936  55  1934  79 1996   3.36 2007  4.49   18.40
29  88  71   97  1998  70 1992  56  1934  77 1996   2.35 1978  4.69   18.60
30  89  71   99  1998  75 1992  58  1984  80 2004   2.86 1995  4.90   18.81

31  89  71  100  1998  75 1992  58  1984  79 2004   3.99 2006  5.11   19.02

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

May Normals
# High: 85.9F
# Low: 68.1F
# Mean Temperature: 77.0F
# Rainfall: 5.11"
# Heating DD: 0
# Cooling DD: 372