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

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000
CXUS51 KLWX 210620
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   WASHINGTON DULLES DC
                                          MONTH:     MAY
                                          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  67  58  63   4   2   0 0.00  0.0    0  7.6 16 110   M    M  10        21 100
 2  87  54  71  12   0   6 0.58  0.0    0  3.3 22 350   M    M   8 1238   27 350
 3  83  58  71  11   0   6 0.13  0.0    0  5.0 23 350   M    M   8 13     29 350
 4  75  61  68   8   0   3 0.57  0.0    0  3.5 10  40   M    M   9 13     13  40
 5  66  58  62   2   3   0 0.92  0.0    0  7.8 16  30   M    M   8 1      23  40
 6  77  57  67   7   0   2 0.00  0.0    0  4.6 12 350   M    M   6        16 320
 7  81  56  69   8   0   4 0.00  0.0    0  6.1 16 200   M    M   4 1      23 210
 8  68  60  64   3   1   0    T  0.0    0  7.9 13  80   M    M   9 18     17  90
 9  77  59  68   7   0   3    T  0.0    0  8.2 17 140   M    M   9 18     25 140
10  80  64  72  11   0   7 0.37  0.0    0  9.5 20 210   M    M   8 13     26 200
11  66  56  61  -1   4   0 0.36  0.0    0  7.5 20  20   M    M   9 1      24  10
12  58  49  54  -8  11   0 0.57  0.0    0  9.1 15  70   M    M   9 1      20  70
13  58  48  53  -9  12   0 0.50  0.0    0  4.7 12 320   M    M   9 1      15 320
14  61  47  54  -8  11   0 0.00  0.0    0 11.2 24 300   M    M   7 8      31 300
15  74  41  58  -5   7   0 0.00  0.0    0  6.4 18 290   M    M   4        23 290
16  78  50  64   1   1   0 0.01  0.0    0  4.9 20 300   M    M   6 8      28 290
17  82  51  67   4   0   2 0.00  0.0    0  4.4 17 290   M    M   8        22 310
18  85  61  73   9   0   8 0.03  0.0    0  3.9 16 160   M    M   6 1      21 160
19  89  62  76  12   0  11 0.00  0.0    0  8.3 23 180   M    M   6 1      30 190
20  88  69  79  15   0  14    T  0.0    0 10.4 17 200   M    M   7 8      23 200
================================================================================
SM 1500 1119        52  66  4.04     0.0 134.3          M      150
================================================================================
AV 75.0 56.0                               6.7 FASTST   M    M   8    MAX(MPH)
                                 MISC ---->  # 24 300               # 31  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:  WASHINGTON DULLES DC
                                          MONTH:    MAY
                                          YEAR:     2019
                                          LATITUDE:   38 57 N
                                          LONGITUDE:  77 27 W

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

AVERAGE MONTHLY: 65.5   TOTAL FOR MONTH:   4.04    1 = FOG OR MIST
DPTR FM NORMAL:   3.9   DPTR FM NORMAL:    1.17    2 = FOG REDUCING VISIBILITY
HIGHEST:    89 ON 19    GRTST 24HR  0.92 ON  5- 5      TO 1/4 MILE OR LESS
LOWEST:     41 ON 15                               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:   5
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.    52    CLEAR  (SCALE 0-3)   0
DPTR FM NORMAL   -51    PTCLDY (SCALE 4-7)  12
TOTAL FM JUL 1  4439    CLOUDY (SCALE 8-10)  8
DPTR FM NORMAL  -236

[CDD (BASE 65) ]
TOTAL THIS MO.    66
DPTR FM NORMAL    33    [PRESSURE DATA]
TOTAL FM JAN 1    88    HIGHEST SLP M ON M
DPTR FM NORMAL    35    LOWEST  SLP 29.65 ON  5

[REMARKS]


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