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

                                          STATION:   CHICAGO-OHARE IL
                                          MONTH:     NOVEMBER
                                          YEAR:      2008
                                          LATITUDE:   41 58 N                   
                                          LONGITUDE:  87 54 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
                                     12Z  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  48  51   6  14   0 0.00  0.0    0  8.8 15  40   M    M   8 1      30  40
 2  67  48  58  13   7   0 0.10  0.0    0  9.3 18 200   M    M   8 18     24 210
 3  73  54  64  19   1   0 0.00  0.0    0 10.4 20 210   M    M   2        24 210
 4  71  50  61  17   4   0 0.00  0.0    0  8.6 15 200   M    M   1 8      20 180
 5  71  47  59  15   6   0 0.00  0.0    0 13.6 26 190   M    M   4 8      36 190
 6  65  45  55  12  10   0 0.34  0.0    0 13.3 25 160   M    M   8 13     33 170
================================================================================
SM  401  292        42   0  0.44     0.0  64.0          M       31              
================================================================================
AV 66.8 48.7                              10.7 FASTST   M    M   5    MAX(MPH)  
                                 MISC ---->  # 26 190               # 36  190   
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

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

                                          STATION:  CHICAGO-OHARE IL
                                          MONTH:    NOVEMBER
                                          YEAR:     2008
                                          LATITUDE:   41 58 N                   
                                          LONGITUDE:  87 54 W                   

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

AVERAGE MONTHLY: 57.8   TOTAL FOR MONTH:   0.44    1 = FOG OR MIST              
DPTR FM NORMAL:  13.4   DPTR FM NORMAL:   -0.16    2 = FOG REDUCING VISIBILITY  
HIGHEST:    73 ON  3    GRTST 24HR  0.34 ON  6- 6      TO 1/4 MILE OR LESS      
LOWEST:     45 ON  6                               3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:   0.0 INCH    5 = HAIL                     
                        GRTST 24HR     0.0         6 = FREEZING RAIN OR DRIZZLE 
                        GRTST DEPTH:   0           7 = DUSTSTORM OR SANDSTORM:  
                                                       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:   2                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   2                                  
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   0                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.    42    CLEAR  (SCALE 0-3)   2                                  
DPTR FM NORMAL   -79    PTCLDY (SCALE 4-7)   4                                  
TOTAL FM JUL 1   482    CLOUDY (SCALE 8-10)  0                                  
DPTR FM NORMAL  -167                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.     0                                                            
DPTR FM NORMAL     0    [PRESSURE DATA]                                         
TOTAL FM JAN 1   828    HIGHEST SLP M ON M                                      
DPTR FM NORMAL    -2    LOWEST  SLP 29.68 ON  6                                 

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