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

                                          STATION:   DETROIT
                                          MONTH:     JANUARY
                                          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  40  23  32   6  33   0 0.25  0.0    0  5.3 13 180   M    M   7 1      16 130
 2  57  39  48  22  17   0 0.01  0.0    0 11.1 24 210   M    M  10 12     31 220
 3  58  39  49  24  16   0 0.03  0.0    0 10.9 22 230   M    M  10 1      26 230
 4  39  29  34   9  31   0 0.25  2.8    0 11.2 17  30   M    M  10 1      21  50
 5  31  24  28   3  37   0 0.01    T    3 11.0 17 300   M    M  10 16     21 300
 6  25   9  17  -8  48   0 0.01  0.2    3 18.9 29 240   M    M   7 18     32 230
 7  22   9  16  -9  49   0    T    T    2 15.0 23 270   M    M   8 18     28 280
 8  25   9  17  -8  48   0 0.00  0.0    1  5.0 15  20   M    M   8 8      18  40
 9  20   7  14 -11  51   0    T    T    1  9.3 16  20   M    M   4 1      18  50
10  17   4  11 -14  54   0    T    T    1  7.2 16 210   M    M   5        17 210
11  36  17  27   2  38   0    T    T    1 16.0 23 220   M    M  10 8      28 230
12  37  31  34  10  31   0 0.01  0.1    1 12.2 23 240   M    M  10 18     28 240
13  35  19  27   3  38   0    T    T    1 11.8 24 320   M    M   9 16     30 310
14  26  16  21  -3  44   0 0.35  4.7    0  8.1 17  40   M    M  10 129    22  40
15  20   5  13 -11  52   0    T    T    5 10.8 20 340   M    M   7 1      24 330
16  17   4  11 -13  54   0 0.00  0.0    4  3.2  8 360   M    M   5         9  80
17  29  15  22  -2  43   0 0.10  1.3    4  7.0 13 140   M    M  10 16     15 150
18  30  17  24   0  41   0    T    T    5 12.5 23 330   M    M   5 168    26 320
19  20  14  17  -7  48   0    T    T    4 12.8 21 300   M    M  10        24 290
20  18   4  11 -13  54   0 0.00  0.0    4  7.4 15 320   M    M   1        18 320
21  31   1  16  -8  49   0    T  0.2    4 12.9 28 220   M    M   8        32 230
22  34   2  18  -6  47   0    T    T    4 17.6 32 300   M    M   4 18     40 300
23  13   0   7 -17  58   0 0.12  2.5    3  8.3 14 220   M    M   9 1      16 220
24  16  -1   8 -16  57   0    T    T    5  7.2 22 360   M    M   3 1      25  10
25  16  -7   5 -19  60   0    T    T    4  9.3 22  60   M    M   7 18     26  50
26  25  15  20  -4  45   0 0.04  0.7    4 13.8 23  50   M    M  10 1469   29  70
27  33  20  27   3  38   0 0.24  1.2    5 11.5 25 230   M    M  10 169    30 230
28  26  14  20  -4  45   0 0.01  0.3    5 15.2 23 230   M    M   9 19     28 230
29  15   7  11 -13  54   0    T    T    5 10.7 20 270   M    M  10 18     24 300
30  17   2  10 -15  55   0    T    T    5 12.9 23 280   M    M   6 18     29 290
31  19   4  12 -13  53   0    T    T    5 10.7 22 290   M    M   6 1      25 280
================================================================================
SM  847  391      1388   0  1.43    14.0 336.8          M      238              
================================================================================
AV 27.3 12.6                              10.9 FASTST  PSBL  %   8    MAX(MPH)  
                                 MISC ---->    32 300                 40  300   
================================================================================
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:    JANUARY
                                          YEAR:     2004
                                          LATITUDE:   42 13 N                   
                                          LONGITUDE:  83 20 W                   

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

AVERAGE MONTHLY: 20.0   TOTAL FOR MONTH:   1.43    1 = FOG                      
DPTR FM NORMAL:  -4.5   DPTR FM NORMAL:   -0.48    2 = FOG REDUCING VISIBILITY  
HIGHEST:    58 ON  3    GRTST 24HR  0.35 ON 14-14      TO 1/4 MILE OR LESS      
LOWEST:     -7 ON 25                               3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:  14.0 INCHES  5 = HAIL                     
                        GRTST 24HR   4.7 ON 14-14  6 = GLAZE OR RIME            
                        GRTST DEPTH:   5 ON 31,30  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:  22    0.01 INCH OR MORE:  13                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   6                                  
MIN 32 OR BELOW:  29    0.50 INCH OR MORE:   0                                  
MIN  0 OR BELOW:   3    1.00 INCH OR MORE:   0                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.  1388    CLEAR  (SCALE 0-3)   2                                  
DPTR FM NORMAL   118    PTCLDY (SCALE 4-7)  11                                  
SEASONAL TOTAL  3512    CLOUDY (SCALE 8-10) 18                                  
DPTR FM NORMAL  -158                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.     0                                                            
DPTR FM NORMAL     0    [PRESSURE DATA]                                         
SEASONAL TOTAL     0    HIGHEST SLP 30.57 ON 10                                 
DPTR FM NORMAL     0    LOWEST  SLP 29.49 ON 27                                 

[REMARKS]