WFO Monthly/Daily Climate Data
Issued by NWS Sterling, VA

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CXUS51 KLWX 210620
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   WASHINGTON DULLES DC
                                          MONTH:     APRIL
                                          YEAR:      2019
                                          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  49  27  38 -12  27   0 0.00  0.0    0 10.0 23 320   M    M   4        33 320
 2  48  28  38 -12  27   0    T  0.0    0  3.7 12  50   M    M   9        14  50
 3  70  27  49  -1  16   0 0.00  0.0    0 10.2 30 290   M    M   2        40 290
 4  68  37  53   2  12   0 0.00  0.0    0  3.0 12  30   M    M   8        16 360
 5  51  44  48  -3  17   0 0.35  0.0    0  6.0 14 100   M    M  10 1      21 100
 6  69  43  56   5   9   0 0.00  0.0    0  4.6 10 360   M    M   6 18     13 310
 7  72  45  59   7   6   0 0.01  0.0    0  6.4 15 150   M    M   8        20 190
 8  82  60  71  19   0   6 0.02  0.0    0  8.5 18 220   M    M   8        25 200
 9  79  55  67  15   0   2 0.00  0.0    0  7.7 22 280   M    M   7        28 290
10  70  43  57   4   8   0 0.00  0.0    0  8.8 21 310   M    M   4        28 300
11  60  45  53   0  12   0 0.00  0.0    0  8.1 15  70   M    M   8        25 120
12  68  49  59   6   6   0 0.27  0.0    0  5.9 15 180   M    M  10 1      20 150
13  75  61  68  14   0   3 0.20  0.0    0  4.2 10 200   M    M   7 1      14 190
14  76  56  66  12   0   1 0.07  0.0    0 10.4 25 190   M    M   8 1      32 150
15  73  45  59   5   6   0 0.05  0.0    0 17.3 35 310   M    M   6        48 280
16  68  41  55   0  10   0 0.00  0.0    0  7.7 16 320   M    M   4        24 290
17  73  54  64   9   1   0 0.00  0.0    0  7.5 16  90   M    M   7        22  70
18  81  53  67  12   0   2 0.00  0.0    0  8.9 22 180   M    M   8        29 190
19  74  64  69  13   0   4 1.26  0.0    0 13.6 23 180   M    M   9 18     33 170
20  72  56  64   8   1   0 0.01  0.0    0 13.2 24 190   M    M   8 1      33 180
================================================================================
SM 1378  933       158  18  2.24     0.0 165.7          M      141
================================================================================
AV 68.9 46.7                               8.3 FASTST   M    M   7    MAX(MPH)
                                 MISC ---->  # 35 310               # 48  280
================================================================================
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:     2019
                                          LATITUDE:   38 57 N
                                          LONGITUDE:  77 27 W

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

AVERAGE MONTHLY: 57.8   TOTAL FOR MONTH:   2.24    1 = FOG OR MIST
DPTR FM NORMAL:   4.9   DPTR FM NORMAL:   -0.07    2 = FOG REDUCING VISIBILITY
HIGHEST:    82 ON  8    GRTST 24HR  1.26 ON 19-19      TO 1/4 MILE OR LESS
LOWEST:     27 ON  3, 1                            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:   9
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   4
MIN 32 OR BELOW:   3    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.   158    CLEAR  (SCALE 0-3)   1
DPTR FM NORMAL   -95    PTCLDY (SCALE 4-7)  12
TOTAL FM JUL 1  4347    CLOUDY (SCALE 8-10)  7
DPTR FM NORMAL  -143

[CDD (BASE 65) ]
TOTAL THIS MO.    18
DPTR FM NORMAL    10    [PRESSURE DATA]
TOTAL FM JAN 1    18    HIGHEST SLP M ON M
DPTR FM NORMAL     7    LOWEST  SLP 29.37 ON 15

[REMARKS]


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