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078
CXUS51 KLWX 200620
CF6DCA
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   WASHINGTON NATIONAL DC
                                          MONTH:     APRIL
                                          YEAR:      2018
                                          LATITUDE:   38 50 N
                                          LONGITUDE:  77  2 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  67  50  59   7   6   0 0.00  0.0    0  9.0 21 190   M    M   9        26 190
 2  54  42  48  -4  17   0 0.02  0.0    0 10.1 24  10   M    M  10        27  10
 3  56  44  50  -3  15   0 0.01  0.0    0  7.4 21 130   M    M  10        26 140
 4  73  42  58   5   7   0    T  0.0    0 17.4 35 320   M    M   7        46 320
 5  56  34  45  -8  20   0 0.00  0.0    0 10.7 22 320   M    M   5        29 300
 6  72  44  58   4   7   0 0.00  0.0    0 13.3 29 200   M    M   9        39 200
 7  67  37  52  -2  13   0    T    T    0 13.2 26 330   M    M  10        31 330
 8  51  34  43 -11  22   0 0.00  0.0    0 14.0 22 340   M    M   5        28 340
 9  46  38  42 -13  23   0 0.02  0.0    0  6.7 14  50   M    M  10 18     15  50
10  55  38  47  -8  18   0    T  0.0    0 10.0 20 350   M    M   4 1      26 310
11  57  43  50  -5  15   0 0.00  0.0    0  6.5 16 170   M    M   7        23 170
12  78  45  62   6   3   0 0.00  0.0    0 13.2 32 200   M    M   7        41 190
13  86  60  73  17   0   8 0.00  0.0    0 13.8 25 220   M    M   6        31 220
14  85  63  74  18   0   9 0.00  0.0    0 13.0 26 210   M    M   5        35 210
15  69  48  59   2   6   0 0.13  0.0    0 16.0 26  60   M    M   8 18     32  60
16  62  45  54  -3  11   0 1.88  0.0    0 12.1 24 280   M    M  10 13     33 290
17  49  40  45 -12  20   0 0.00  0.0    0 13.1 23 310   M    M   9        30 290
18  62  36  49  -9  16   0 0.00  0.0    0  7.6 16 260   M    M   1        20 320
19  59  43  51  -7  14   0 0.03  0.0    0 14.0 33 310   M    M   7        44 300
================================================================================
SM 1204  826       233  17  2.09    T    221.1          M      139
================================================================================
AV 63.4 43.5                              11.6 FASTST   M    M   7    MAX(MPH)
                                 MISC ---->  # 35 320               # 46  320
================================================================================
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 NATIONAL DC
                                          MONTH:    APRIL
                                          YEAR:     2018
                                          LATITUDE:   38 50 N
                                          LONGITUDE:  77  2 W

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

AVERAGE MONTHLY: 53.4   TOTAL FOR MONTH:   2.09    1 = FOG OR MIST
DPTR FM NORMAL:  -1.6   DPTR FM NORMAL:    0.15    2 = FOG REDUCING VISIBILITY
HIGHEST:    86 ON 13    GRTST 24HR  1.88 ON 16-16      TO 1/4 MILE OR LESS
LOWEST:     34 ON  8, 5                            3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:    T          5 = HAIL
                        GRTST 24HR    T  ON  7- 7  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:   6
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   2
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.   233    CLEAR  (SCALE 0-3)   1
DPTR FM NORMAL    34    PTCLDY (SCALE 4-7)   9
TOTAL FM JUL 1  3680    CLOUDY (SCALE 8-10)  9
DPTR FM NORMAL  -195

[CDD (BASE 65) ]
TOTAL THIS MO.    17
DPTR FM NORMAL     7    [PRESSURE DATA]
TOTAL FM JAN 1    21    HIGHEST SLP M ON M
DPTR FM NORMAL     9    LOWEST  SLP 29.45 ON 16

[REMARKS]