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000
CXUS55 KLOT 010700
CF6ORD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CHICAGO-OHARE
                                          MONTH:     AUGUST
                                          YEAR:      2011
                                          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  91  74  83   9   0  18 0.00  0.0    0  4.9 12 320   M    M   6        17 270
 2  93  74  84  10   0  19 0.43  0.0    0  9.1 38 300   M    M  10 138    51 310
 3  86  72  79   5   0  14 0.00  0.0    0  8.0 18  50   M    M   5        29  60
 4  84  69  77   3   0  12 0.00  0.0    0  6.0 14  70   M    M   5        24  60
 5  83  69  76   3   0  11    T  0.0    0  5.5 13  50   M    M   7        25  60
 6  85  72  79   6   0  14 0.18  0.0    0  4.0 10  60   M    M   4 1      20  40
 7  86  68  77   4   0  12 0.75  0.0    0  6.4 33 320   M    M   5 138    41 320
 8  80  68  74   1   0   9 0.63  0.0    0  6.2 21 110   M    M   8 13     26 110
 9  80  64  72  -1   0   7 0.00  0.0    0 11.1 24 300   M    M   3 1      35 290
10  77  61  69  -4   0   4 0.00  0.0    0  8.7 17 330   M    M   4        23 340
11  81  57  69  -4   0   4 0.00  0.0    0  3.0  9 240   M    M   1        13 240
12  81  60  71  -2   0   6 0.00  0.0    0  8.5 20 180   M    M   6        25 180
13  83  62  73   0   0   8 0.75  0.0    0  6.7 36 330   M    M   8 13     43 320
14  75  62  69  -4   0   4    T  0.0    0 11.7 22 350   M    M   5        30  10
15  82  57  70  -3   0   5 0.00  0.0    0  4.9 10 100   M    M   3        22  60
16  85  61  73   0   0   8 0.00  0.0    0  3.9 13  90   M    M   2        16 100
17  83  62  73   0   0   8 0.00  0.0    0  6.0 14 220   M    M   5        17 200
18  84  67  76   4   0  11 0.00  0.0    0  5.2 10  60   M    M   4        18  30
19  87  64  76   4   0  11 0.00  0.0    0  5.2 12 100   M    M   4        20 220
20  80  66  73   1   0   8 1.11  0.0    0  3.4 28 330   M    M   8 138    33 330
21  80  64  72   0   0   7    T  0.0    0  8.5 18 310   M    M   5 18     24 340
22  82  59  71  -1   0   6 0.00  0.0    0  4.1 13 260   M    M   5        17 280
23  73  62  68  -4   0   3 0.65  0.0    0  9.8 23 280   M    M   6 13     33 300
24  92  69  81   9   0  16 0.00  0.0    0 10.7 21 310   M    M   2 1      26 340
25  83  64  74   2   0   9 0.00  0.0    0  7.3 16 340   M    M   1        28  60
26  83  59  71   0   0   6 0.00  0.0    0  3.3 10 260   M    M   3        15 250
27  81  64  73   2   0   8 0.00  0.0    0  9.2 20  20   M    M   3        32  50
28  77  61  69  -2   0   4 0.00  0.0    0  7.9 17  40   M    M   6        28  50
29  79  59  69  -2   0   4 0.00  0.0    0  3.5 14  50   M    M   3        17  70
30  76  61  69  -1   0   4 0.04  0.0    0  6.3 15 110   M    M   9        18 120
31  87  65  76   6   0  11    T  0.0    0  8.3 15 180   M    M   4        22 240
================================================================================
SM 2559 1996         0 271  4.54     0.0 207.3          M      150
================================================================================
AV 82.5 64.4                               6.7 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->  # 38 300               # 51  310
================================================================================
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:    AUGUST
                                          YEAR:     2011
                                          LATITUDE:   41 58 N
                                          LONGITUDE:  87 54 W

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

AVERAGE MONTHLY: 73.5   TOTAL FOR MONTH:   4.54    1 = FOG OR MIST
DPTR FM NORMAL:   1.1   DPTR FM NORMAL:   -0.36    2 = FOG REDUCING VISIBILITY
HIGHEST:    93 ON  2    GRTST 24HR  1.11 ON 20-20      TO 1/4 MILE OR LESS
LOWEST:     57 ON 15,11                            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:   8
MAX 90 OR ABOVE:   3    0.10 INCH OR MORE:   7
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   5
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.     0    CLEAR  (SCALE 0-3)   7
DPTR FM NORMAL    -9    PTCLDY (SCALE 4-7)  21
TOTAL FM JUL 1     0    CLOUDY (SCALE 8-10)  3
DPTR FM NORMAL   -13

[CDD (BASE 65) ]
TOTAL THIS MO.   271
DPTR FM NORMAL    33    [PRESSURE DATA]
TOTAL FM JAN 1   952    HIGHEST SLP M ON M
DPTR FM NORMAL   212    LOWEST  SLP 29.63 ON  2

[REMARKS]
#FINAL-08-11#