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

                                          STATION:   CHICAGO-OHARE
                                          MONTH:     SEPTEMBER
                                          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  83  70  77   7   0  12 0.36  0.0    0 11.5 23 290   M    M   7        30 220
 2  82  67  75   5   0  10 0.01  0.0    0  5.9 18 280   M    M   6        23 280
 3  83  61  72   3   0   7 0.00  0.0    0  6.7 15 190   M    M   2        19 190
 4  85  71  78   9   0  13 0.26  0.0    0 12.6 26 170   M    M   6 3      33 180
 5  88  64  76   7   0  11 0.50  0.0    0 11.0 44 300   M    M   6 3      52 300
 6  75  60  68   0   0   3 0.00  0.0    0  8.4 15 340   M    M   4        19 340
 7  80  54  67  -1   0   2 0.00  0.0    0  4.3 14 100   M    M   1        17  60
 8  77  55  66  -2   0   1 0.00  0.0    0  6.2 15 190   M    M   5        19 190
 9  79  63  71   4   0   6 0.01  0.0    0  7.6 17 180   M    M   8        23 170
10  80  56  68   1   0   3 1.31  0.0    0 15.8 28 280   M    M   9 1      39 200
11  56  50  53 -14  12   0 0.00  0.0    0 10.3 17 340   M    M  10        22 340
12  55  44  50 -16  15   0 0.13  0.0    0 12.5 18 320   M    M  10 1      23 320
13  59  41  50 -16  15   0 0.00  0.0    0  7.7 16 310   M    M   5        20 310
================================================================================
SM  982  756        42  68  2.58     0.0 120.5          M       79              
================================================================================
AV 75.5 58.2                               9.3 FASTST   M    M   6    MAX(MPH)  
                                 MISC ---->  # 44 300               # 52  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:  CHICAGO-OHARE
                                          MONTH:    SEPTEMBER
                                          YEAR:     2014
                                          LATITUDE:   41 58 N                   
                                          LONGITUDE:  87 54 W                   

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

AVERAGE MONTHLY: 66.8   TOTAL FOR MONTH:   2.58    1 = FOG OR MIST              
DPTR FM NORMAL:  -1.2   DPTR FM NORMAL:    1.13    2 = FOG REDUCING VISIBILITY  
HIGHEST:    88 ON  5    GRTST 24HR  1.32 ON  9-10      TO 1/4 MILE OR LESS      
LOWEST:     41 ON 13                               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:   7                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   5                                  
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   2                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.    42    CLEAR  (SCALE 0-3)   2                                  
DPTR FM NORMAL    22    PTCLDY (SCALE 4-7)   7                                  
TOTAL FM JUL 1    47    CLOUDY (SCALE 8-10)  4                                  
DPTR FM NORMAL    14                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.    68                                                            
DPTR FM NORMAL     8    [PRESSURE DATA]                                         
TOTAL FM JAN 1   783    HIGHEST SLP M ON M                                      
DPTR FM NORMAL   -17    LOWEST  SLP 29.51 ON 10                                 

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