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

                                          STATION:   DETROIT
                                          MONTH:     MARCH
                                          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  54  38  46  15  19   0 0.10  0.0    0 10.2 22 190   M    M   8 1      28 200
 2  56  43  50  18  15   0 0.05  0.0    0 13.8 25 220   M    M   7 18     31 260
 3  45  39  42  10  23   0 0.03  0.0    0  6.5 13 280   M    M  10 18     15 280
 4  50  39  45  12  20   0 0.40  0.0    0  5.5 16  80   M    M  10 18     20  70
 5  68  41  55  22  10   0 0.38  0.0    0 19.7 38 210   M    M   9 1      59 240
 6  45  36  41   8  24   0 0.00  0.0    0 13.0 23 280   M    M  10        28 270
 7  50  32  41   7  24   0 0.11  0.1    0 14.8 29 270   M    M   8 1      40 250
 8  40  29  35   1  30   0 0.02  0.3    0 11.3 25 310   M    M  10 1      29 310
 9  43  27  35   1  30   0    T    T    0  6.2 13  20   M    M   7 1      18 360
10  45  25  35   0  30   0 0.00  0.0    0  6.4 16 170   M    M   2 18     20 180
11  51  25  38   3  27   0 0.04  0.5    0 16.1 32 240   M    M   8 149    38 260
12  28  21  25 -10  40   0    T    T    0 16.1 26 290   M    M  10        36 300
13  36  17  27  -9  38   0    T    T    0  6.5 14 310   M    M   4        17 320
14  47  28  38   2  27   0 0.02  0.1    0 16.3 37 260   M    M   9 18     47 260
15  43  29  36  -1  29   0 0.00  0.0    0 11.1 26 280   M    M   6        36 300
16  29  25  27 -10  38   0 0.29  3.7    0 13.9 25  30   M    M  10 128    31  30
17  30  24  27 -10  38   0 0.01  0.2    4  3.5 12  10   M    M  10 1      14  10
18  39  27  33  -5  32   0 0.05  0.2    1  4.9 10 170   M    M  10 18     13 130
19  43  31  37  -1  28   0 0.00  0.0    0  6.6 16 170   M    M   8 18     20 150
20  58  35  47   9  18   0 0.81  0.0    0 12.9 29 280   M    M   7 138    37 290
21  37  25  31  -8  34   0    T    T    0 16.1 26 320   M    M  10        32 330
22  35  17  26 -13  39   0 0.00  0.0    0 10.4 20 240   M    M   1        25 270
23  54  27  41   2  24   0 0.00  0.0    0 14.3 24 230   M    M   3        29 230
24  49  34  42   2  23   0 0.48  0.0    0  8.2 15 180   M    M   8 18     18 210
25  67  49  58  18   7   0 0.11  0.0    0 13.1 23 230   M    M  10 1      28 230
26  64  54  59  18   6   0 0.21  0.0    0 12.0 28 230   M    M  10 1      32 230
27  60  45  53  12  12   0 0.00  0.0    0  7.6 15  70   M    M   9 1      18  70
28  56  42  49   8  16   0 0.00  0.0    0  9.4 15 110   M    M  10 1      18 110
29  58  46  52  10  13   0 0.04  0.0    0  7.4 18 240   M    M   9 1      22 250
30  50  43  47   5  18   0 0.13  0.0    0  5.9 16  30   M    M  10 1      21  30
31  44  36  40  -2  25   0 0.01    T    0 16.5 24  10   M    M  10        31 360
================================================================================
SM 1474 1029       757   0  3.29     5.1 336.2          M      253              
================================================================================
AV 47.5 33.2                              10.8 FASTST  PSBL  %   8    MAX(MPH)  
                                 MISC ---->    38 210                 59  240   
================================================================================
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:    MARCH
                                          YEAR:     2004
                                          LATITUDE:   42 13 N                   
                                          LONGITUDE:  83 20 W                   

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

AVERAGE MONTHLY: 40.4   TOTAL FOR MONTH:   3.29    1 = FOG                      
DPTR FM NORMAL:   3.5   DPTR FM NORMAL:    0.77    2 = FOG REDUCING VISIBILITY  
HIGHEST:    68 ON  5    GRTST 24HR  0.81 ON 20-20      TO 1/4 MILE OR LESS      
LOWEST:     17 ON 22,13                            3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:   5.1 INCHES  5 = HAIL                     
                        GRTST 24HR   3.7 ON 16-16  6 = GLAZE OR RIME            
                        GRTST DEPTH:   4 ON 17     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:   3    0.01 INCH OR MORE:  19                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:  10                                  
MIN 32 OR BELOW:  16    0.50 INCH OR MORE:   1                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.   757    CLEAR  (SCALE 0-3)   3                                  
DPTR FM NORMAL  -129    PTCLDY (SCALE 4-7)   5                                  
SEASONAL TOTAL  5321    CLOUDY (SCALE 8-10) 23                                  
DPTR FM NORMAL  -309                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.     0                                                            
DPTR FM NORMAL     0    [PRESSURE DATA]                                         
SEASONAL TOTAL     0    HIGHEST SLP 30.54 ON 13                                 
DPTR FM NORMAL     0    LOWEST  SLP 29.44 ON  5                                 

[REMARKS]