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

                                          STATION:   CHICAGO-OHARE
                                          MONTH:     OCTOBER
                                          YEAR:      2014
                                          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  70  49  60   2   5   0 0.00  0.0    0 10.4 17 130   M    M   7        25 120
 2  72  63  68  10   0   3 0.32  0.0    0  7.9 18 210   M    M  10 13     23 210
 3  65  43  54  -3  11   0 0.68  0.0    0 16.4 31 280   M    M  10 1      39 280
 4  47  35  41 -16  24   0 0.06    T    0 13.8 25 280   M    M   8 1      33 280
 5  55  37  46 -10  19   0 0.01  0.0    0  9.0 20 210   M    M   8        27 220
 6  61  42  52  -4  13   0 0.01  0.0    0  8.8 23 270   M    M   5        32 250
 7  66  48  57   1   8   0    T  0.0    0 11.5 25 300   M    M   5        31 280
 8  65  44  55   0  10   0 0.00  0.0    0 11.3 25 260   M    M   3        33 260
 9  62  43  53  -2  12   0 0.00  0.0    0  5.8 13 300   M    M   6        16 300
10  58  39  49  -5  16   0 0.00  0.0    0  8.2 17  10   M    M   8        21  30
11  59  36  48  -6  17   0 0.00  0.0    0  4.5 14 110   M    M   3        19 110
12  63  38  51  -3  14   0 0.01  0.0    0  9.1 21 160   M    M   5 1      25 150
13  67  56  62   8   3   0 0.64  0.0    0  9.1 23 170   M    M  10 18     31 170
14  65  52  59   6   6   0 0.65  0.0    0 10.2 22 170   M    M  10 1      30 170
15  55  50  53   0  12   0 0.05  0.0    0  9.9 18  20   M    M   9 1      22  20
16  56  50  53   1  12   0    T  0.0    0  7.4 14 320   M    M   9 1      19 200
17  62  48  55   3  10   0    T  0.0    0 13.2 24 330   M    M   7        31 320
18  50  36  43  -9  22   0 0.01  0.0    0  9.2 18 360   M    M   7        23 360
19  54  33  44  -8  21   0 0.00  0.0    0  8.2 17 190   M    M   6        22 190
================================================================================
SM 1152  842       235   3  2.44    T    183.9          M      136              
================================================================================
AV 60.6 44.3                               9.7 FASTST   M    M   7    MAX(MPH)  
                                 MISC ---->  # 31 280               # 39  280   
================================================================================
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
                                          MONTH:    OCTOBER
                                          YEAR:     2014
                                          LATITUDE:   41 58 N                   
                                          LONGITUDE:  87 54 W                   

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

AVERAGE MONTHLY: 52.5   TOTAL FOR MONTH:   2.44    1 = FOG OR MIST              
DPTR FM NORMAL:  -2.2   DPTR FM NORMAL:    0.54    2 = FOG REDUCING VISIBILITY  
HIGHEST:    72 ON  2    GRTST 24HR  1.00 ON  2- 3      TO 1/4 MILE OR LESS      
LOWEST:     33 ON 19                               3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:    T          5 = HAIL                     
                        GRTST 24HR    T  ON  4- 4  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:  10                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   4                                  
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   3                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.   235    CLEAR  (SCALE 0-3)   1                                  
DPTR FM NORMAL    28    PTCLDY (SCALE 4-7)  11                                  
TOTAL FM JUL 1   346    CLOUDY (SCALE 8-10)  7                                  
DPTR FM NORMAL    21                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.     3                                                            
DPTR FM NORMAL    -7    [PRESSURE DATA]                                         
TOTAL FM JAN 1   799    HIGHEST SLP M ON M                                      
DPTR FM NORMAL   -43    LOWEST  SLP 29.45 ON 14                                 

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