WFO Monthly/Daily Climate Data
Issued by NWS

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000
CXUS55 KLOT 210700
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
================================================================================
SM 1436 1042        93  37  5.35     0.0 200.3          M      132
================================================================================
AV 71.8 52.1                              10.0 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: 62.0   TOTAL FOR MONTH:   5.35    1 = FOG OR MIST
DPTR FM NORMAL:   4.5   DPTR FM NORMAL:    2.99    2 = FOG REDUCING VISIBILITY
HIGHEST:    86 ON  2, 1 GRTST 24HR  1.54 ON 14-14      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:  10
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   8
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   4
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   2

[HDD (BASE 65) ]
TOTAL THIS MO.    93    CLEAR  (SCALE 0-3)   3
DPTR FM NORMAL   -77    PTCLDY (SCALE 4-7)   9
TOTAL FM JUL 1  6123    CLOUDY (SCALE 8-10)  8
DPTR FM NORMAL  -114

[CDD (BASE 65) ]
TOTAL THIS MO.    37
DPTR FM NORMAL    17    [PRESSURE DATA]
TOTAL FM JAN 1    37    HIGHEST SLP M ON M
DPTR FM NORMAL     7    LOWEST  SLP 29.59 ON  9

[REMARKS]



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