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

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000
CXUS51 KLWX 310620
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   WASHINGTON DULLES DC
                                          MONTH:     MAY
                                          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  59  51  55  -4  10   0 0.53  0.0    0  6.9 14 160   M    M  10 13     19 170
 2  80  54  67   8   0   2 1.39  0.0    0  6.8 30 300   M    M   7 123    39 290
 3  71  57  64   4   1   0 0.54  0.0    0  6.1 14  60   M    M   9 1      18  50
 4  62  53  58  -2   7   0    T  0.0    0  6.2 14  70   M    M  10 18     18  70
 5  57  50  54  -6  11   0 0.01  0.0    0  9.3 16 360   M    M  10 138    21  10
 6  54  50  52  -8  13   0 0.92  0.0    0  9.8 21 310   M    M  10 1      26 350
 7  65  49  57  -4   8   0 0.03  0.0    0  4.9 14 310   M    M   7 1      17 310
 8  71  45  58  -3   7   0 0.05  0.0    0  9.5 26 300   M    M   6        33 320
 9  63  42  53  -8  12   0 0.10  0.0    0  3.4 16 220   M    M   9 1      22 210
10  63  54  59  -2   6   0 0.01  0.0    0  4.2 13  70   M    M   9 3      14  60
11  60  54  57  -5   8   0 0.17  0.0    0  2.9  9  20   M    M   9 1      13  30
12  67  57  62   0   3   0    T  0.0    0  3.7 10 140   M    M  10 128    13 170
13  77  56  67   5   0   2 0.05  0.0    0  9.4 22 300   M    M   7 1      28 290
14  75  46  61  -1   4   0 0.18  0.0    0  8.5 33 310   M    M   4 1      43 320
15  59  37  48 -15  17   0 0.00  0.0    0 13.9 30 300   M    M   6        39 310
16  66  36  51 -12  14   0 0.00  0.0    0  7.3 17 300   M    M   5        23 300
17  56  50  53 -10  12   0 0.33  0.0    0  3.2 10 360   M    M   9 1      13 360
18  65  52  59  -5   6   0    T  0.0    0  7.0 13 350   M    M  10 1      18 350
19  72  50  61  -3   4   0    T  0.0    0  4.1 10 350   M    M   7        13 350
20  77  45  61  -3   4   0 0.00  0.0    0  5.8 12 150   M    M   6        16 140
21  62  53  58  -6   7   0 0.55  0.0    0  8.3 16 100   M    M  10 1      22 100
22  57  52  55 -10  10   0 0.69  0.0    0  8.2 14 320   M    M  10 1      18 320
23  75  54  65   0   0   0 0.47  0.0    0  5.6 15  50   M    M   8 13     21  30
24  82  52  67   2   0   2 0.05  0.0    0  6.4 20 290   M    M   3 1      24 290
25  86  52  69   3   0   4 0.00  0.0    0  3.9 14 230   M    M   4        21 210
26  89  56  73   7   0   8 0.00  0.0    0  5.1 16 190   M    M   5        22 200
27  89  67  78  12   0  13 0.00  0.0    0  4.9 15 200   M    M   5        18 180
28  89  69  79  12   0  14 0.00  0.0    0  7.4 15 180   M    M   4        19 150
29  84  64  74   7   0   9 0.01  0.0    0  4.6 12 150   M    M   8        16 140
30  83  63  73   6   0   8 0.00  0.0    0  4.0 10 140   M    M   8        14 130
================================================================================
SM 2115 1570       164  62  6.08     0.0 191.3          M      225
================================================================================
AV 70.5 52.3                               6.4 FASTST   M    M   8    MAX(MPH)
                                 MISC ---->  # 33 310               # 43  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 DULLES DC
                                          MONTH:    MAY
                                          YEAR:     2016
                                          LATITUDE:   38 57 N
                                          LONGITUDE:  77 27 W

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

AVERAGE MONTHLY: 61.4   TOTAL FOR MONTH:   6.08    1 = FOG OR MIST
DPTR FM NORMAL:  -1.6   DPTR FM NORMAL:    1.68    2 = FOG REDUCING VISIBILITY
HIGHEST:    89 ON 28,27 GRTST 24HR  1.48 ON  2- 3      TO 1/4 MILE OR LESS
LOWEST:     36 ON 16                               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:  18
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:  11
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   6
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.   164    CLEAR  (SCALE 0-3)   1
DPTR FM NORMAL    35    PTCLDY (SCALE 4-7)  16
TOTAL FM JUL 1  4036    CLOUDY (SCALE 8-10) 13
DPTR FM NORMAL  -665

[CDD (BASE 65) ]
TOTAL THIS MO.    62
DPTR FM NORMAL    -6    [PRESSURE DATA]
TOTAL FM JAN 1    85    HIGHEST SLP M ON M
DPTR FM NORMAL    -3    LOWEST  SLP 29.62 ON  5

[REMARKS]



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