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

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CXUS51 KLWX 010620
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   WASHINGTON DULLES DC
                                          MONTH:     APRIL
                                          YEAR:      2016
                                          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  82  64  73  23   0   8 0.02  0.0    0 13.8 28 220   M    M   7        37 220
 2  65  42  54   4  11   0 0.09  0.0    0 11.7 51 300   M    M   8        65 310
 3  53  34  44  -6  21   0    T    T    0 15.8 41 290   M    M   3        53 290
 4  72  38  55   4  10   0 0.03  0.0    0 12.5 25 350   M    M   6        32 360
 5  45  27  36 -15  29   0    T    T    0 10.9 23  10   M    M   3        30 320
 6  57  24  41 -10  24   0 0.00  0.0    0 11.1 24 180   M    M   4        34 180
 7  62  44  53   1  12   0 0.94  0.0    0 10.5 26 260   M    M   9 1      40 270
 8  51  34  43  -9  22   0    T  0.0    0 10.9 25 290   M    M   5        31 290
 9  46  32  39 -13  26   0 0.08    T    0 16.0 32 310   M    M   7 1      41 320
10  53  25  39 -14  26   0 0.00  0.0    0  8.0 16 170   M    M   4        23 160
11  74  45  60   7   5   0 0.02  0.0    0 15.6 24 190   M    M   9        34 200
12  67  46  57   4   8   0 0.01  0.0    0 14.7 23 300   M    M   6        32 210
13  59  34  47  -7  18   0 0.00  0.0    0  4.6 15  40   M    M   1        19  20
14  64  31  48  -6  17   0 0.00  0.0    0  3.7 12 140   M    M   0        15 150
15  64  34  49  -5  16   0 0.00  0.0    0  3.7 12 130   M    M   1        15 130
16  71  34  53  -2  12   0 0.00  0.0    0  4.6 14  10   M    M   1        22 330
17  74  38  56   1   9   0 0.00  0.0    0  2.8 12 310   M    M   1        14 310
18  83  42  63   8   2   0 0.00  0.0    0  3.8 17 350   M    M   3        25 350
19  82  47  65   9   0   0 0.00  0.0    0  8.1 22 310   M    M   8        30 310
20  71  40  56   0   9   0 0.00  0.0    0  5.8 15  30   M    M   3        18  30
21  75  48  62   6   3   0 0.00  0.0    0  9.6 20 200   M    M   7        25 210
22  71  62  67  11   0   2 0.01  0.0    0  9.6 17 200   M    M   9        22 190
23  70  53  62   5   3   0 0.18  0.0    0 10.5 22 360   M    M   7 1      27 310
24  69  44  57   0   8   0 0.00  0.0    0  4.9 12 360   M    M   3        15 310
25  80  47  64   7   1   0 0.00  0.0    0  5.3 12 140   M    M   5        15 150
26  84  62  73  15   0   8    T  0.0    0 10.8 24 300   M    M   6        33 280
27  69  53  61   3   4   0 0.02  0.0    0  6.2 14  70   M    M   9 1      17  70
28  54  47  51  -7  14   0 0.42  0.0    0  6.6 15  70   M    M  10 1      17  70
29  55  46  51  -7  14   0    T  0.0    0  4.7  9  90   M    M  10 18     11 120
30  56  51  54  -5  11   0 0.06  0.0    0  4.7 10  70   M    M  10 18     12 140
================================================================================
SM 1978 1268       335  18  1.88    T    261.5          M      165
================================================================================
AV 65.9 42.3                               8.7 FASTST   M    M   6    MAX(MPH)
                                 MISC ---->  # 51 300               # 65  310
================================================================================
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:     2016
                                          LATITUDE:   38 57 N
                                          LONGITUDE:  77 27 W

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

AVERAGE MONTHLY: 54.1   TOTAL FOR MONTH:   1.88    1 = FOG OR MIST
DPTR FM NORMAL:  -0.3   DPTR FM NORMAL:   -1.59    2 = FOG REDUCING VISIBILITY
HIGHEST:    84 ON 26    GRTST 24HR  0.94 ON  6- 7      TO 1/4 MILE OR LESS
LOWEST:     24 ON  6                               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:  12
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   3
MIN 32 OR BELOW:   5    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   335    CLEAR  (SCALE 0-3)   7
DPTR FM NORMAL     0    PTCLDY (SCALE 4-7)  16
TOTAL FM JUL 1  3872    CLOUDY (SCALE 8-10)  7
DPTR FM NORMAL  -700

[CDD (BASE 65) ]
TOTAL THIS MO.    18
DPTR FM NORMAL     1    [PRESSURE DATA]
TOTAL FM JAN 1    23    HIGHEST SLP M ON M
DPTR FM NORMAL     3    LOWEST  SLP 29.39 ON  2

[REMARKS]
#FINAL-04-16#



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