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000
CXUS53 KLSX 011600
CF6CPS
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CAHOKIA/ST. LOUIS IL
                                          MONTH:     AUGUST
                                          YEAR:      2011
                                          LATITUDE:   38 34 N
                                          LONGITUDE:  90  9 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  97  73  85   7   0  20 0.00  0.0    0  3.4 10 140   M    M   1 18     13 140
 2  99  71  85   7   0  20 0.00  0.0    0  5.8 14 150   M    M   0 18     18 200
 3  96  80  88  10   0  23 0.00  0.0    0  7.7 16 330   M    M   1        21 320
 4  90  73  82   4   0  17    T  0.0    0  5.1 13 150   M    M   0        16 160
 5  86  72  79   1   0  14 0.23  0.0    0  2.7 14 180   M    M   5 138    21 170
 6  94  73  84   6   0  19 0.09  0.0    0  4.3 14 140   M    M   2 13     17 150
 7  97  77  87   9   0  22    T  0.0    0  4.6 14 260   M    M   1 138    18 250
 8  88  70  79   2   0  14 0.00  0.0    0  5.3 15 270   M    M   1        21 270
 9  94  66  80   3   0  15 0.00  0.0    0  3.5 14 350   M    M   1 1      18 350
10  82  62  72  -5   0   7 0.01  0.0    0  4.0 14 350   M    M   1        17 350
11  85  59  72  -5   0   7 0.01  0.0    0  3.6 13  80   M    M   2        16 100
12  88  60  74  -3   0   9 0.10  0.0    0  3.7 16 150   M    M   2 13     26  90
13  90  65  78   1   0  13 0.00  0.0    0  6.0 22 330   M    M   4 1      26 330
14  85  61  73  -4   0   8 0.00  0.0    0  9.0 17 350   M    M   2        22 340
15  81  56  69  -8   0   4 0.00  0.0    0  0.9  7  70   M    M   0 1       9  60
16  83  54  69  -8   0   4    T  0.0    0  3.4 12 130   M    M   1 1      15 130
17  90  70  80   4   0  15    T  0.0    0  3.5 10 170   M    M   7 18     15 150
18  93  68  81   5   0  16 0.00  0.0    0  2.9  8 180   M    M   1 128    12 160
19  91  69  80   4   0  15 0.15  0.0    0  3.6 21 300   M    M   0 13     28 310
20  89  70  80   4   0  15 0.12  0.0    0  3.6 18 270   M    M   5 1      28 250
21  93  68  81   5   0  16 0.00  0.0    0  3.8 13 350   M    M   2 12     15 350
22  85  66  76   0   0  11 0.08  0.0    0  3.1 10 130   M    M   2 8      13 130
23  96  69  83   8   0  18 0.00  0.0    0  6.4 14 190   M    M   0        21 170
24  98  75  87  12   0  22 0.00  0.0    0  7.6 16 350   M    M   1        25 230
25  89  63  76   1   0  11 0.00  0.0    0  6.6 18 360   M    M   1        22  10
26  89  60  75   0   0  10 0.00  0.0    0  1.6 14 340   M    M   0        21 350
27  92  62  77   3   0  12 0.00  0.0    0  7.1 17 340   M    M   0 1      23 320
28  87  61  74   0   0   9    T  0.0    0  4.7 14 340   M    M   0        17 350
29  87  59  73  -1   0   8 0.00  0.0    0  2.3 10  70   M    M   1        17  60
30  90  58  74   0   0   9    T  0.0    0  7.0 16 130   M    M   1        22 120
31 100  68  84  11   0  19 0.00  0.0    0  6.4 13 190   M    M   2        22 200
================================================================================
SM 2804 2058         0 422  0.79     0.0 143.2          M       47
================================================================================
AV 90.5 66.4                               4.6 FASTST   M    M   2    MAX(MPH)
                                 MISC ---->  # 22 330               # 28  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:  CAHOKIA/ST. LOUIS IL
                                          MONTH:    AUGUST
                                          YEAR:     2011
                                          LATITUDE:   38 34 N
                                          LONGITUDE:  90  9 W

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

AVERAGE MONTHLY: 78.4   TOTAL FOR MONTH:   0.79    1 = FOG OR MIST
DPTR FM NORMAL:   2.2   DPTR FM NORMAL:   -2.36    2 = FOG REDUCING VISIBILITY
HIGHEST:   100 ON 31    GRTST 24HR  0.31 ON  5- 6      TO 1/4 MILE OR LESS
LOWEST:     54 ON 16                               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:  17    0.10 INCH OR MORE:   4
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.     0    CLEAR  (SCALE 0-3)  27
DPTR FM NORMAL    -2    PTCLDY (SCALE 4-7)   4
TOTAL FM JUL 1     0    CLOUDY (SCALE 8-10)  0
DPTR FM NORMAL    -2

[CDD (BASE 65) ]
TOTAL THIS MO.   422
DPTR FM NORMAL    73    [PRESSURE DATA]
TOTAL FM JAN 1  1475    HIGHEST SLP 30.11 ON 22
DPTR FM NORMAL   317    LOWEST  SLP 29.66 ON  8

[REMARKS]
#FINAL-08-11#