822
CXUS53 KLSX 211600
CF6CPS
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CAHOKIA/ST. LOUIS
                                          MONTH:     MAY
                                          YEAR:      2013
                                          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   7   0   3 0.00  0.0    0  3.9 16 140   M    M   1 1      21 130
 2  72  45  59  -3   6   0 0.96  0.0    0  8.0 20 320   M    M   6 138    23 310
 3  45  42  44 -18  21   0 1.91  0.0    0  6.9 14 330   M    M  10 1      17 320
 4  52  41  47 -15  18   0    T  0.0    0  3.8 10 120   M    M  10 18     16  60
 5  62  44  53 -10  12   0 0.09  0.0    0  7.8 17  10   M    M  10 1      23 360
 6  68  52  60  -3   5   0    T  0.0    0  6.9 20  30   M    M   9 1      23  20
 7  77  54  66   3   0   1    T  0.0    0  1.3 13 100   M    M   7 1      15  90
 8  82  50  66   2   0   1    T  0.0    0  1.4 12 300   M    M   3 12     15 300
 9  77  63  70   6   0   5 0.21  0.0    0  4.4 16 210   M    M   8 13     30 200
10  69  56  63  -1   2   0 0.14  0.0    0  8.8 21 320   M    M   8 138    24 320
11  70  50  60  -4   5   0 0.00  0.0    0 10.5 25 320   M    M   4        33 320
12  62  40  51 -14  14   0 0.00  0.0    0  7.7 18 310   M    M   0        26 250
13  72  38  55 -10  10   0 0.00  0.0    0  4.0 12 140   M    M   0        15 140
14  92  53  73   8   0   8 0.00  0.0    0  6.9 14 240   M    M   0        23 240
15  91  66  79  13   0  14 0.00  0.0    0  6.9 14 190   M    M   1        21 240
16  83  63  73   7   0   8 0.01  0.0    0  5.0 17 140   M    M   3 3      21 200
17  80  62  71   5   0   6 0.01  0.0    0  5.3 15 130   M    M   7 18     18 150
18  83  60  72   6   0   7 0.00  0.0    0  5.0 12 130   M    M   6 12     15 120
19  91  69  80  13   0  15 0.00  0.0    0  8.3 21 150   M    M   3 8      31 150
20  80  63  72   5   0   7 1.15  0.0    0  9.0 33 290   M    M   6 13     45 300
================================================================================
SM 1491 1064        93  75  4.48     0.0 121.8          M      102
================================================================================
AV 74.6 53.2                               6.1 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->  # 33 290               # 45  300
================================================================================
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:    MAY
                                          YEAR:     2013
                                          LATITUDE:   38 34 N
                                          LONGITUDE:  90  9 W

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

AVERAGE MONTHLY: 63.9   TOTAL FOR MONTH:   4.48    1 = FOG OR MIST
DPTR FM NORMAL:  -0.4   DPTR FM NORMAL:    1.27    2 = FOG REDUCING VISIBILITY
HIGHEST:    92 ON 14    GRTST 24HR  2.23 ON  2- 3      TO 1/4 MILE OR LESS
LOWEST:     38 ON 13                               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:   5
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   3
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   2

[HDD (BASE 65) ]
TOTAL THIS MO.    93    CLEAR  (SCALE 0-3)   7
DPTR FM NORMAL    24    PTCLDY (SCALE 4-7)   9
TOTAL FM JUL 1  4640    CLOUDY (SCALE 8-10)  4
DPTR FM NORMAL   -64

[CDD (BASE 65) ]
TOTAL THIS MO.    75
DPTR FM NORMAL    21    [PRESSURE DATA]
TOTAL FM JAN 1    99    HIGHEST SLP M ON M
DPTR FM NORMAL    18    LOWEST  SLP 29.68 ON 19

[REMARKS]