PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   DETROIT
                                          MONTH:     SEPTEMBER
                                          YEAR:      2004
                                          LATITUDE:   42 13 N                   
                                          LONGITUDE:  83 20 W                   

  TEMPERATURE IN F:       :PCPN:    SNOW:  WIND      :SUNSHINE: SKY     :PK WND 
================================================================================
1   2   3   4   5  6A  6B    7    8   9   10  11  12  13   14  15   16   17  18
                                          AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================

 1  79  59  69   0   0   4 0.00  0.0    0  4.2 13 180   M    M   3        17 170
 2  81  63  72   4   0   7 0.00  0.0    0  4.9 13 170   M    M   3 18     16 150
 3  82  65  74   6   0   9    T  0.0    0  4.8 14 180   M    M   5 128    16 180
 4  81  68  75   7   0  10 0.00  0.0    0  4.0 13  20   M    M   4 128    16 170
 5  83  66  75   8   0  10 0.00  0.0    0  4.4 12 170   M    M   7 128    14 130
 6  85  69  77  10   0  12 0.04  0.0    0 11.8 25 170   M    M   6 1      30 180
 7  79  64  72   5   0   7 0.56  0.0    0  7.6 15  40   M    M   7 1      17  40
 8  70  60  65  -2   0   0 0.05  0.0    0 14.0 22  30   M    M   8 1      29  30
 9  74  59  67   1   0   2 0.00  0.0    0  8.8 17 350   M    M   6        22 360
10  77  54  66   0   0   1 0.00  0.0    0  2.6 12 170   M    M   1 8      14 150
11  77  57  67   1   0   2 0.00  0.0    0  3.6 12 160   M    M   4 1      13 160
12  82  58  70   5   0   5 0.00  0.0    0  3.8 12 170   M    M   4 128    14 150
13  81  61  71   6   0   6 0.00  0.0    0  5.0 14 130   M    M   1 128    18 130
14  83  66  75  10   0  10 0.00  0.0    0  6.7 17 130   M    M   5 18     20 120
15  81  66  74  10   0   9 0.00  0.0    0  9.7 16 160   M    M   2 1      21 120
16  81  62  72   8   0   7 0.00  0.0    0 10.6 20 290   M    M   6        26 300
17  66  53  60  -4   5   0 0.00  0.0    0 12.2 21 360   M    M   8        28 360
18  73  49  61  -2   4   0 0.00  0.0    0  6.4 12  30   M    M   1        16  30
19  70  50  60  -3   5   0 0.00  0.0    0  5.2 13  50   M    M   0        17  50
20  75  51  63   1   2   0 0.00  0.0    0  4.4 13 160   M    M   2 1      14 220
21  81  52  67   5   0   2 0.00  0.0    0  3.5 13 170   M    M   3 1      14 170
22  85  53  69   7   0   4 0.00  0.0    0  2.2 13 170   M    M   1 18     15 160
23  82  55  69   8   0   4 0.00  0.0    0  3.8 16 170   M    M   1 18     20 160
24  80  60  70   9   0   5 0.00  0.0    0  5.3 14 190   M    M   M 18     17 190
25  69  60  65   4   0   0 0.00  0.0    0  8.9 18 300   M    M   M        21 300
26  74  55  65   5   0   0 0.00  0.0    0  4.2 10  90   M    M   M        13  90
27  75  50  63   3   2   0 0.00  0.0    0  2.6 12 170   M    M   1        14 170
28  67  53  60   1   5   0 0.00  0.0    0 13.1 26  10   M    M   7 1      32 360
29  66  52  59   0   6   0 0.00  0.0    0  7.9 14  40   M    M   7         M  M 
30  73  44  59   1   6   0 0.00  0.0    0  3.7 12 310   M    M   1        15 280
================================================================================
SM 2312 1734        35 116  0.65     0.0 189.9          M      104              
================================================================================
AV 77.1 57.8                               6.3 FASTST  PSBL  %   4    MAX(MPH)  
                                 MISC ---->    26  10                 32  360   
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2

                                          STATION:  DETROIT
                                          MONTH:    SEPTEMBER
                                          YEAR:     2004
                                          LATITUDE:   42 13 N                   
                                          LONGITUDE:  83 20 W                   

[TEMPERATURE DATA]      [PRECIPITATION DATA]       SYMBOLS USED IN COLUMN 16    

AVERAGE MONTHLY: 67.4   TOTAL FOR MONTH:   0.65    1 = FOG                      
DPTR FM NORMAL:   3.5   DPTR FM NORMAL:   -2.62    2 = FOG REDUCING VISIBILITY  
HIGHEST:    85 ON 22, 6 GRTST 24HR  0.60 ON  6- 7      TO 1/4 MILE OR LESS      
LOWEST:     44 ON 30                               3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:   0.0 INCH    5 = HAIL                     
                        GRTST 24HR     0.0         6 = GLAZE OR RIME            
                        GRTST DEPTH:   0           7 = BLOWING DUST OR SAND:    
                                                       VSBY 1/2 MILE OR LESS    
                                                   8 = SMOKE OR HAZE            
[NO. OF DAYS WITH]      [WEATHER - DAYS WITH]      9 = BLOWING SNOW             
                                                   X = TORNADO                  
MAX 32 OR BELOW:   0    0.01 INCH OR MORE:   3                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   1                                  
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   1                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.    35    CLEAR  (SCALE 0-3)  13                                  
DPTR FM NORMAL   -86    PTCLDY (SCALE 4-7)  12                                  
SEASONAL TOTAL    55    CLOUDY (SCALE 8-10)  2                                  
DPTR FM NORMAL   -78                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.   116                                                            
DPTR FM NORMAL    41    [PRESSURE DATA]                                         
SEASONAL TOTAL   641    HIGHEST SLP 30.46 ON 19                                 
DPTR FM NORMAL   -89    LOWEST  SLP 29.87 ON 16                                 

[REMARKS]