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000
CXUS53 KLSX 311600
CF6CPS
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CAHOKIA/ST. LOUIS
                                          MONTH:     DECEMBER
                                          YEAR:      2012
                                          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  70  39  55  17  10   0 0.00  0.0    0  8.0 21 190   M    M   5 1      28 190
 2  74  60  67  29   0   2    T  0.0    0  6.2 15 190   M    M   6        23 200
 3  73  61  67  29   0   2 0.00  0.0    0  9.4 24 190   M    M   3        33 190
 4  65  35  50  13  15   0 0.16  0.0    0  6.8 13 360   M    M   6 1       M  M
 5  56  30  43   6  22   0 0.00  0.0    0  1.7  8  90   M    M   0 1      10  70
 6  51  32  42   5  23   0 0.00  0.0    0  3.5  9 130   M    M   4        12 150
 7  59  43  51  15  14   0 0.04  0.0    0  3.1  7 360   M    M   9 12      M  M
 8  49  44  47  11  18   0 0.12  0.0    0  7.2 13  60   M    M  10 1      16  80
 9  51  39  45   9  20   0 0.17  0.0    0  6.7 22 310   M    M  10 128    29 320
10  39  27  33  -2  32   0 0.00  0.0    0 12.0 21 310   M    M  10        25 310
11  42  20  31  -4  34   0 0.00  0.0    0  3.6 12 200   M    M   0        17 220
12  50  20  35   0  30   0 0.00  0.0    0  2.9 10 160   M    M   0        14 150
13  55  26  41   6  24   0 0.00  0.0    0  7.4 15 190   M    M   0        22 180
14  56  26  41   7  24   0 0.02  0.0    0  4.0 12 140   M    M   1        15 150
15  62  44  53  19  12   0 0.39  0.0    0  9.9 21 170   M    M   7 1      32 180
16  55  41  48  14  17   0 0.00  0.0    0  4.3  9 360   M    M   2        14 210
17  42  39  41   7  24   0    T  0.0    0  7.1 14 310   M    M  10 1      18 250
18  58  33  46  12  19   0 0.00  0.0    0  6.5 16 210   M    M   1        24 170
19  54  29  42   9  23   0 0.04  0.0    0  6.9 15  90   M    M   5 138    20 150
20  57  29  43  10  22   0 0.50    M    0 20.0 38 290   M    M   7 13     55 290
21  36  26  31  -2  34   0 0.00  0.0    M 14.6 28 300   M    M   0        39 290
22  45  19  32  -1  33   0 0.00  0.0    0  5.2 15 140   M    M   0        17 150
23  51  28  40   7  25   0 0.00  0.0    0  3.1  9  20   M    M   0        10  30
24  36  24  30  -2  35   0 0.00  0.0    0 11.5 20 320   M    M   9 18     24 300
25  35  24  30  -2  35   0 0.00  0.0    0 12.5 26  10   M    M   8 18     33  10
26  33  29  31  -1  34   0 0.00  0.0    0 17.7 29 360   M    M  10        36 340
27  34  28  31  -1  34   0 0.00  0.0    0  4.9 13 140   M    M   8        20 100
28  37  29  33   1  32   0 0.17    M    0  4.4  9 140   M    M  10 1      12 150
29  33  15  24  -8  41   0    T    M    0 10.9 24 300   M    M   7 18     30 300
30  37  13  25  -7  40   0 0.00  0.0    M  3.2 12 140   M    M   0 1      15 170
================================================================================
SM 1495  952       726   4  1.61     0.0 225.2          M      148
================================================================================
AV 49.8 31.7                               7.5 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->  # 38 290               # 55  290
================================================================================
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
                                          MONTH:    DECEMBER
                                          YEAR:     2012
                                          LATITUDE:   38 34 N
                                          LONGITUDE:  90  9 W

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

AVERAGE MONTHLY: 40.8   TOTAL FOR MONTH:   1.61    1 = FOG OR MIST
DPTR FM NORMAL:   6.4   DPTR FM NORMAL:   -1.36    2 = FOG REDUCING VISIBILITY
HIGHEST:    74 ON  2    GRTST 24HR  0.54 ON 19-20      TO 1/4 MILE OR LESS
LOWEST:     13 ON 30                               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:   9
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   6
MIN 32 OR BELOW:  19    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   726    CLEAR  (SCALE 0-3)  12
DPTR FM NORMAL  -191    PTCLDY (SCALE 4-7)   9
TOTAL FM JUL 1  1722    CLOUDY (SCALE 8-10)  9
DPTR FM NORMAL  -125

[CDD (BASE 65) ]
TOTAL THIS MO.     4
DPTR FM NORMAL     4    [PRESSURE DATA]
TOTAL FM JAN 1  1810    HIGHEST SLP M ON M
DPTR FM NORMAL   489    LOWEST  SLP 29.24 ON 20

[REMARKS]