WFO Monthly/Daily Climate Data
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CXUS55 KLOT 210700
CF6ORD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CHICAGO-OHARE
                                          MONTH:     OCTOBER
                                          YEAR:      2017
                                          LATITUDE:   41 58 N
                                          LONGITUDE:  87 54 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  72  48  60   2   5   0 0.00  0.0    0 10.3 18 140   M    M   6        22 140
 2  83  58  71  13   0   6 0.00  0.0    0 12.5 22 170   M    M   7 8      28 170
 3  78  67  73  16   0   8    T  0.0    0 14.7 23 210   M    M   7        28 210
 4  76  58  67  10   0   2 0.03  0.0    0  7.5 20 210   M    M   8 1      26 210
 5  77  54  66  10   0   1 0.01  0.0    0  5.8 14 350   M    M   7 8      16 350
 6  69  60  65   9   0   0 0.30  0.0    0  8.7 17 190   M    M  10 1      22 190
 7  79  60  70  14   0   5 0.43  0.0    0 17.6 31 250   M    M   9 1      39 210
 8  78  54  66  11   0   1 0.00  0.0    0  7.2 17 170   M    M   1        22 170
 9  81  52  67  12   0   2 0.00  0.0    0  5.6 16  20   M    M   2 8      20  30
10  63  58  61   7   4   0 0.78  0.0    0 13.8 23  40   M    M   9 1      30  30
11  62  56  59   5   6   0 0.79  0.0    0 12.8 23  60   M    M  10 18     33  60
12  60  56  58   4   7   0    T  0.0    0  6.6 12 140   M    M   9 18     14 160
13  73  55  64  10   1   0 0.00  0.0    0  8.1 16  40   M    M   8        20 180
14  66  62  64  11   1   0 4.19  0.0    0  8.8 38 320   M    M  10 13     45 310
15  68  47  58   5   7   0 0.20  0.0    0 15.7 30 290   M    M   9 1      38 290
16  63  43  53   1  12   0 0.00  0.0    0  7.3 15 250   M    M   1        20 250
17  70  49  60   8   5   0 0.00  0.0    0 11.9 23 220   M    M   2        29 220
18  71  47  59   7   6   0 0.00  0.0    0 12.7 23 210   M    M   1        29 190
19  70  51  61   9   4   0 0.00  0.0    0  6.5 15 220   M    M   5 8      21 220
20  78  51  65  14   0   0 0.00  0.0    0  9.0 20 190   M    M   5 8      25 200
================================================================================
SM 1437 1086        58  25  6.73     0.0 203.1          M      126
================================================================================
AV 71.9 54.3                              10.2 FASTST   M    M   6    MAX(MPH)
                                 MISC ---->  # 38 320               # 45  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:  CHICAGO-OHARE
                                          MONTH:    OCTOBER
                                          YEAR:     2017
                                          LATITUDE:   41 58 N
                                          LONGITUDE:  87 54 W

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

AVERAGE MONTHLY: 63.1   TOTAL FOR MONTH:   6.73    1 = FOG OR MIST
DPTR FM NORMAL:   8.6   DPTR FM NORMAL:    4.73    2 = FOG REDUCING VISIBILITY
HIGHEST:    83 ON  2    GRTST 24HR  4.19 ON 14-14      TO 1/4 MILE OR LESS
LOWEST:     43 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:   0    0.10 INCH OR MORE:   6
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   3
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.    58    CLEAR  (SCALE 0-3)   5
DPTR FM NORMAL  -163    PTCLDY (SCALE 4-7)   8
TOTAL FM JUL 1   100    CLOUDY (SCALE 8-10)  7
DPTR FM NORMAL  -239

[CDD (BASE 65) ]
TOTAL THIS MO.    25
DPTR FM NORMAL    15    [PRESSURE DATA]
TOTAL FM JAN 1   987    HIGHEST SLP M ON M
DPTR FM NORMAL   145    LOWEST  SLP 29.47 ON  7

[REMARKS]


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