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

                                          STATION:   CAHOKIA/ST. LOUIS IL
                                          MONTH:     APRIL
                                          YEAR:      2010
                                          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  83  53  68   M   0   3 0.00  0.0    0 10.7 21 130   M    M   0        25 170
 2  77  53  65   M   0   0 0.09  0.0    0 11.5 25 150   M    M   2 1      35 160
 3  67  49  58   M   7   0 0.39  0.0    0  7.3 23 260   M    M   4 1      30 290
 4  81  49  65   M   0   0 0.00  0.0    0  9.8 22 170   M    M   1        32 180
 5  82  60  71   M   0   6    T  0.0    0  7.6 21 140   M    M   4 1      25 140
 6  84  65  75   M   0  10 0.00  0.0    0 12.5 25 190   M    M   2        37 200
 7  76  50  63   M   2   0 0.63  0.0    0 11.1 30 260   M    M   5 138    43 240
 8  59  40  50   M  15   0 0.00  0.0    0 12.8 23 320   M    M   5        29 320
 9  69  34  52   M  13   0 0.00  0.0    0  3.9 16 320   M    M   0        20 310
10  74  46  60   M   5   0 0.00  0.0    0  7.3 18 150   M    M   0        24 170
11  80  45  63   M   2   0 0.00  0.0    0  2.3  9 220   M    M   0        20 240
12  79  47  63   M   2   0 0.00  0.0    0  5.0 17 140   M    M   0        22 150
13  83  47  65   M   0   0 0.00  0.0    0  4.2 14 130   M    M   0        17 120
14  84  50  67   M   0   2 0.00  0.0    0  5.5 17 190   M    M   0        25 190
15  83  50  67   M   0   2    T  0.0    0  4.5 18 180   M    M   1 8      28 190
16  76  53  65   M   0   0 0.02  0.0    0  8.2 23 340   M    M   4        30 340
17  65  41  53   M  12   0 0.00  0.0    0  7.0 15 360   M    M   0        20 320
18  66  35  51   M  14   0 0.00  0.0    0  3.3 15  50   M    M   0 1      20  40
19  65  40  53   M  12   0 0.00  0.0    0  1.9 13  20   M    M   0        16  20
20  70  39  55   M  10   0 0.00  0.0    0  3.0 13 350   M    M   0 1      16  20
21  75  40  58   M   7   0 0.00  0.0    0  3.3 12 280   M    M   2 8      17 290
22  73  49  61   M   4   0 0.50  0.0    0  4.5 12 140   M    M   3 13     15 130
23  75  56  66   M   0   1 0.31  0.0    0  7.5 28 130   M    M   7 18     37 130
24  67  55  61   M   4   0 0.52  0.0    0 10.2 29 140   M    M   7 13     37 180
25  57  51  54   M  11   0 0.19  0.0    0 13.7 24 280   M    M  10 1      32 280
26  60  48  54   M  11   0 0.01  0.0    0 11.7 20 330   M    M   9 1      24 320
27  63  41  52   M  13   0 0.04  0.0    0  8.9 21 340   M    M   6 1      26 340
28  69  38  54   M  11   0 0.00  0.0    0  4.7 14 170   M    M   1 1      21 140
29  80  52  66   M   0   1 0.00  0.0    0 13.7 26 180   M    M   0        43 190
30  73  64  69   M   0   4 0.66  0.0    0 10.7 21 170   M    M   7 13     30 160
================================================================================
SM 2195 1440       155  29  3.36     0.0 228.3          M       80
================================================================================
AV 73.2 48.0                               7.6 FASTST   M    M   3    MAX(MPH)
                                 MISC ---->  # 30 260               # 43  240
================================================================================
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:    APRIL
                                          YEAR:     2010
                                          LATITUDE:   38 34 N
                                          LONGITUDE:  90  9 W

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

AVERAGE MONTHLY: 60.6   TOTAL FOR MONTH:   3.36    1 = FOG OR MIST
DPTR FM NORMAL:     M   DPTR FM NORMAL:       M    2 = FOG REDUCING VISIBILITY
HIGHEST:    84 ON 14, 6 GRTST 24HR  0.72 ON 23-24      TO 1/4 MILE OR LESS
LOWEST:     34 ON  9                               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:  11
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   7
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   4
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   155    CLEAR  (SCALE 0-3)  18
DPTR FM NORMAL     M    PTCLDY (SCALE 4-7)  10
TOTAL FM JUL 1  4791    CLOUDY (SCALE 8-10)  2
DPTR FM NORMAL     M

[CDD (BASE 65) ]
TOTAL THIS MO.    29
DPTR FM NORMAL     M    [PRESSURE DATA]
TOTAL FM JAN 1    29    HIGHEST SLP 30.35 ON 14
DPTR FM NORMAL     M    LOWEST  SLP 29.12 ON 25

[REMARKS]
#FINAL-04-10#