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

                                          STATION:   CHICAGO-OHARE
                                          MONTH:     APRIL
                                          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  57  32  45   1  20   0 0.00  0.0    0 18.7 32 250   M    M   7        43 260
 2  45  34  40  -4  25   0    T  0.0    0 10.3 17  40   M    M   8        29  40
 3  43  35  39  -5  26   0 0.53  0.0    0 13.7 29 100   M    M  10 138    35 100
 4  48  34  41  -4  24   0    T  0.0    0 16.5 30 260   M    M  10 12     40 250
 5  51  31  41  -4  24   0 0.00  0.0    0  5.9 13 250   M    M   3        16 230
 6  57  31  44  -1  21   0 0.00  0.0    0  6.5 14 200   M    M   5        20 200
 7  54  36  45  -1  20   0 0.00  0.0    0  6.8 20  40   M    M   9        24  30
 8  60  40  50   4  15   0 0.02  0.0    0  6.9 16  50   M    M   8        23  30
 9  62  33  48   2  17   0 0.00  0.0    0  9.2 23 210   M    M   4        31 220
10  66  41  54   7  11   0    T  0.0    0 12.5 28 200   M    M   6        36 200
11  70  37  54   7  11   0 0.00  0.0    0  6.8 20 260   M    M   5        28 250
12  80  44  62  14   3   0 0.00  0.0    0 14.9 33 200   M    M   8 3      44 190
13  69  42  56   8   9   0 0.43  0.0    0 13.1 30 190   M    M   9 138    38 180
14  63  30  47  -1  18   0 0.30  1.4    0 15.6 28 330   M    M   7 148    37 210
15  38  26  32 -17  33   0    T    T    1  9.3 15 340   M    M   4        21 340
16  52  26  39 -10  26   0 0.00  0.0    0 16.1 26 160   M    M   6        36 120
17  62  40  51   1  14   0 0.00  0.0    0 12.2 22 220   M    M   8        28 210
18  51  38  45  -5  20   0 0.00  0.0    0  7.8 20  40   M    M   3        22  40
19  66  37  52   2  13   0 0.00  0.0    0  9.2 16 120   M    M   5        24  60
20  79  41  60   9   5   0 0.00  0.0    0 10.1 17 200   M    M   6        22 190
21  74  58  66  15   0   1    T  0.0    0  9.0 18 270   M    M   9 18     22 270
22  61  36  49  -2  16   0 0.00  0.0    0 11.5 22 340   M    M   2 8      26 340
================================================================================
SM 1308  802       371   1  1.28     1.4 242.6          M      142              
================================================================================
AV 59.5 36.5                              11.0 FASTST   M    M   6    MAX(MPH)  
                                 MISC ---->  # 33 200               # 44  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
                                          MONTH:    APRIL
                                          YEAR:     2014
                                          LATITUDE:   41 58 N                   
                                          LONGITUDE:  87 54 W                   

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

AVERAGE MONTHLY: 48.0   TOTAL FOR MONTH:   1.28    1 = FOG OR MIST              
DPTR FM NORMAL:   0.5   DPTR FM NORMAL:   -1.16    2 = FOG REDUCING VISIBILITY  
HIGHEST:    80 ON 12    GRTST 24HR  0.55 ON 13-14      TO 1/4 MILE OR LESS      
LOWEST:     26 ON 16,15                            3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:   1.4 INCHES  5 = HAIL                     
                        GRTST 24HR   1.4 ON   M    6 = FREEZING RAIN OR DRIZZLE 
                        GRTST DEPTH:   1 ON 15     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:   4                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   3                                  
MIN 32 OR BELOW:   6    0.50 INCH OR MORE:   1                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.   371    CLEAR  (SCALE 0-3)   1                                  
DPTR FM NORMAL   -22    PTCLDY (SCALE 4-7)  16                                  
TOTAL FM JUL 1  6811    CLOUDY (SCALE 8-10)  5                                  
DPTR FM NORMAL   843                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.     1                                                            
DPTR FM NORMAL     1    [PRESSURE DATA]                                         
TOTAL FM JAN 1     1    HIGHEST SLP M ON M                                      
DPTR FM NORMAL     0    LOWEST  SLP 29.37 ON 14                                 

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