WFO Monthly/Daily Climate Data
Issued by NWS

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000
CXUS53 KLSX 211600
CF6CPS
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CAHOKIA/ST. LOUIS
                                          MONTH:     SEPTEMBER
                                          YEAR:      2017
                                          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  80  53  67  -6   0   2 0.00  0.0    0  9.4 16  20   M    M   3        21  10
 2  82  46  64  -9   1   0 0.00  0.0    0  1.9 10 320   M    M   0 18     14 350
 3  90  61  76   4   0  11 0.00  0.0    0  2.3 12  40   M    M   2        14  30
 4  95  62  79   7   0  14 0.16  0.0    0  7.2 21 340   M    M   3 138    26 340
 5  78  55  67  -5   0   2 0.00  0.0    0 12.9 24 340   M    M   2        32 320
 6  73  49  61 -10   4   0 0.00  0.0    0  8.5 24 330   M    M   2        40 310
 7  78  44  61 -10   4   0 0.00  0.0    0  3.4 13 270   M    M   2        17 290
 8  86  48  67  -4   0   2 0.00  0.0    0  2.0  9  30   M    M   0        14  30
 9  87  55  71   1   0   6 0.00  0.0    0  3.3 10 100   M    M   1 18     15 140
10  81  53  67  -3   0   2 0.00  0.0    0  5.1 14  80   M    M   1        18  20
11  80  47  64  -6   1   0 0.00  0.0    0  5.5 16  20   M    M   0        27  20
12  80  61  71   2   0   6 0.04  0.0    0  9.3 20  20   M    M   5        25  10
13  78  61  70   1   0   5 0.00  0.0    0  3.4 10  10   M    M   8 128    12  10
14  90  54  72   4   0   7 0.00  0.0    0  1.5  9 160   M    M   3 128    12 150
15  92  59  76   8   0  11 0.00  0.0    0  6.4 13 150   M    M   0        18 230
16  94  62  78  10   0  13 0.00  0.0    0  4.9 14 140   M    M   2 1      17 140
17  89  69  79  12   0  14 0.01  0.0    0  3.8 21 330   M    M   4        24 320
18  87  63  75   8   0  10 0.13  0.0    0  2.9 14 290   M    M   3 13     19 300
19  92  65  79  13   0  14 0.01  0.0    0  3.5 10 240   M    M   3 128    13 240
20  99  69  84  18   0  19 0.00  0.0    0  6.2 13 160   M    M   0        18 160
================================================================================
SM 1711 1136        10 138  0.35     0.0 103.4          M       44
================================================================================
AV 85.6 56.8                               5.2 FASTST   M    M   2    MAX(MPH)
                                 MISC ---->  # 24 340               # 40  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
                                          MONTH:    SEPTEMBER
                                          YEAR:     2017
                                          LATITUDE:   38 34 N
                                          LONGITUDE:  90  9 W

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

AVERAGE MONTHLY: 71.2   TOTAL FOR MONTH:   0.35    1 = FOG OR MIST
DPTR FM NORMAL:   1.5   DPTR FM NORMAL:   -1.75    2 = FOG REDUCING VISIBILITY
HIGHEST:    99 ON 20    GRTST 24HR  0.16 ON  4- 4      TO 1/4 MILE OR LESS
LOWEST:     44 ON  7                               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:   5
MAX 90 OR ABOVE:   7    0.10 INCH OR MORE:   2
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.    10    CLEAR  (SCALE 0-3)  16
DPTR FM NORMAL    -5    PTCLDY (SCALE 4-7)   4
TOTAL FM JUL 1    10    CLOUDY (SCALE 8-10)  0
DPTR FM NORMAL    -7

[CDD (BASE 65) ]
TOTAL THIS MO.   138
DPTR FM NORMAL    29    [PRESSURE DATA]
TOTAL FM JAN 1  1492    HIGHEST SLP M ON M
DPTR FM NORMAL   225    LOWEST  SLP 29.69 ON 13

[REMARKS]



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