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000
CXUS51 KLWX 250620
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   WASHINGTON DULLES DC
                                          MONTH:     APRIL
                                          YEAR:      2018
                                          LATITUDE:   38 57 N
                                          LONGITUDE:  77 27 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  65  46  56   6   9   0 0.00  0.0    0  7.4 15 350   M    M   9        19 350
 2  50  38  44  -6  21   0 0.09  0.0    0  8.4 23 350   M    M   9 1      29 350
 3  52  43  48  -2  17   0 0.02  0.0    0  7.7 20 290   M    M   9 3      24 140
 4  69  39  54   3  11   0 0.04  0.0    0 18.5 40 290   M    M   6        51 290
 5  54  32  43  -8  22   0 0.00  0.0    0 10.8 29 310   M    M   6        37 310
 6  71  41  56   5   9   0 0.00  0.0    0 11.8 25 210   M    M   9        33 220
 7  58  36  47  -5  18   0    T    T    0 11.5 25 350   M    M  10        30 350
 8  51  29  40 -12  25   0 0.00  0.0    0 11.5 21 330   M    M   5        28 320
 9  43  36  40 -12  25   0    T    T    0  5.3 14 110   M    M  10 1      17 110
10  53  34  44  -9  21   0 0.00  0.0    0  8.4 18 320   M    M   5 1      24 320
11  59  33  46  -7  19   0 0.00  0.0    0  4.8 15 200   M    M   7        22 220
12  77  43  60   7   5   0    T  0.0    0 14.5 32 210   M    M   6        41 210
13  86  58  72  18   0   7 0.00  0.0    0 14.3 25 190   M    M   5        33 180
14  84  62  73  19   0   8 0.00  0.0    0 14.2 26 210   M    M   4        35 190
15  71  45  58   4   7   0 0.50  0.0    0 13.1 24  90   M    M   7 13     32 100
16  53  41  47  -8  18   0 0.97  0.0    0 13.3 28 300   M    M   9 13     36 290
17  45  36  41 -14  24   0 0.00  0.0    0 13.0 25 290   M    M   9        31 290
18  62  29  46  -9  19   0 0.00  0.0    0  6.3 13 190   M    M   2        19 190
19  58  38  48  -8  17   0 0.01  0.0    0 13.4 36 320   M    M   6        47 310
20  60  29  45 -11  20   0 0.00  0.0    0 10.7 23 310   M    M   0        32 330
21  63  30  47  -9  18   0 0.00  0.0    0  3.1  9 340   M    M   6        12  10
22  68  44  56   0   9   0 0.00  0.0    0  6.3 16 110   M    M   8        21 140
23  69  42  56  -1   9   0 0.00  0.0    0  7.7 17 130   M    M   8 8      24 130
24  62  53  58   1   7   0 0.43  0.0    0 10.2 22 100   M    M  10 1      29 130
================================================================================
SM 1483  957       350  15  2.06    T    246.2          M      165
================================================================================
AV 61.8 39.9                              10.3 FASTST   M    M   7    MAX(MPH)
                                 MISC ---->  # 40 290               # 51  290
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2

                                          STATION:  WASHINGTON DULLES DC
                                          MONTH:    APRIL
                                          YEAR:     2018
                                          LATITUDE:   38 57 N
                                          LONGITUDE:  77 27 W

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

AVERAGE MONTHLY: 50.8   TOTAL FOR MONTH:   2.06    1 = FOG OR MIST
DPTR FM NORMAL:  -2.6   DPTR FM NORMAL:   -0.71    2 = FOG REDUCING VISIBILITY
HIGHEST:    86 ON 13    GRTST 24HR  0.97 ON 16-16      TO 1/4 MILE OR LESS
LOWEST:     29 ON 20,18                            3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:    T          5 = HAIL
                        GRTST 24HR    T  ON  9- 9  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:   7
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   3
MIN 32 OR BELOW:   5    0.50 INCH OR MORE:   2
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   350    CLEAR  (SCALE 0-3)   2
DPTR FM NORMAL    60    PTCLDY (SCALE 4-7)  12
TOTAL FM JUL 1  4480    CLOUDY (SCALE 8-10) 10
DPTR FM NORMAL   -47

[CDD (BASE 65) ]
TOTAL THIS MO.    15
DPTR FM NORMAL     3    [PRESSURE DATA]
TOTAL FM JAN 1    20    HIGHEST SLP M ON M
DPTR FM NORMAL     5    LOWEST  SLP 29.45 ON 16

[REMARKS]