WFO Monthly/Daily Climate Data
Issued by NWS

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000
CXUS55 KLOT 250700
CF6ORD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CHICAGO-OHARE
                                          MONTH:     MAY
                                          YEAR:      2018
                                          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  86  60  73  19   0   8 0.00  0.0    0 15.4 29 190   M    M   6 8      36 190
 2  86  63  75  20   0  10 1.32  0.0    0 12.4 36 300   M    M   9 138    47 300
 3  70  54  62   7   3   0 0.57  0.0    0  7.2 24 200   M    M   8 13     37 200
 4  74  61  68  12   0   3 0.00  0.0    0 14.2 33 270   M    M   6        47 260
 5  82  57  70  14   0   5 0.00  0.0    0  8.6 22  20   M    M   2        25 290
 6  68  50  59   3   6   0    T  0.0    0  9.9 22  20   M    M   4        26  40
 7  75  46  61   5   4   0 0.00  0.0    0  5.6 15 110   M    M   2        19 120
 8  81  57  69  12   0   4 0.00  0.0    0  6.9 14 120   M    M   4         M  M
 9  81  57  69  12   0   4 0.25  0.0    0 13.3 26 200   M    M   7 38     34 200
10  73  50  62   5   3   0 0.00  0.0    0  9.2 18  30   M    M   5        22  40
11  52  45  49  -9  16   0 0.04  0.0    0 15.0 23  60   M    M  10        28  50
12  50  44  47 -11  18   0 0.33  0.0    0 12.6 22  30   M    M  10 13     25  30
13  67  45  56  -2   9   0 0.91  0.0    0  6.2 18  40   M    M   8 138    21  40
14  83  53  68   9   0   3 1.54  0.0    0  8.3 24 300   M    M   9 138    38 290
15  71  51  61   2   4   0 0.00  0.0    0 11.0 22  10   M    M   8 1      28  30
16  79  47  63   4   2   0 0.00  0.0    0  5.3 15  60   M    M   1 8      18  70
17  69  52  61   2   4   0 0.00  0.0    0  9.2 20  30   M    M   6 8      23  20
18  65  52  59  -1   6   0 0.10  0.0    0 11.0 17  30   M    M   8 1      23  10
19  69  54  62   2   3   0 0.02  0.0    0  5.4 23  30   M    M   9 18     26  40
20  55  44  50 -10  15   0 0.27    M    0 13.6 24  30   M    M  10 13     28  30
21  64  49  57  -4   8   0 1.96  0.0    0  6.3 18 220   M    M  10 123    23 220
22  67  54  61   0   4   0    T  0.0    0  4.6 14  50   M    M   8 128    15  50
23  80  52  66   5   0   1 0.00  0.0    0  4.0 13  90   M    M   4 18     16 100
24  87  58  73  11   0   8 0.00  0.0    0  5.1 13 220   M    M   4        21 180
================================================================================
SM 1734 1255       105  46  7.31     0.0 220.3          M      158
================================================================================
AV 72.3 52.3                               9.2 FASTST   M    M   7    MAX(MPH)
                                 MISC ---->  # 36 300               # 47  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:  CHICAGO-OHARE
                                          MONTH:    MAY
                                          YEAR:     2018
                                          LATITUDE:   41 58 N
                                          LONGITUDE:  87 54 W

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

AVERAGE MONTHLY: 62.3   TOTAL FOR MONTH:   7.31    1 = FOG OR MIST
DPTR FM NORMAL:   4.2   DPTR FM NORMAL:    4.46    2 = FOG REDUCING VISIBILITY
HIGHEST:    87 ON 24    GRTST 24HR  1.96 ON 21-21      TO 1/4 MILE OR LESS
LOWEST:     44 ON 20,12                            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:   9
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   5
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   3

[HDD (BASE 65) ]
TOTAL THIS MO.   105    CLEAR  (SCALE 0-3)   3
DPTR FM NORMAL   -88    PTCLDY (SCALE 4-7)  12
TOTAL FM JUL 1  6135    CLOUDY (SCALE 8-10)  9
DPTR FM NORMAL  -125

[CDD (BASE 65) ]
TOTAL THIS MO.    46
DPTR FM NORMAL    18    [PRESSURE DATA]
TOTAL FM JAN 1    46    HIGHEST SLP M ON M
DPTR FM NORMAL     8    LOWEST  SLP 29.59 ON  9

[REMARKS]



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