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000
CXUS51 KLWX 010620
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   WASHINGTON DULLES DC
                                          MONTH:     MAY
                                          YEAR:      2012
                                          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  84  57  71  12   0   6 0.09  0.0    0  6.4 15 320   M    M   7 1      20 320
 2  77  59  68   9   0   3 0.01  0.0    0  5.1 14 100   M    M   8 1      24 300
 3  84  55  70  10   0   5    T  0.0    0  5.6 12 150   M    M   8 18     15 130
 4  84  60  72  12   0   7 0.05  0.0    0  4.1 22 270   M    M   7 1      28 270
 5  80  60  70  10   0   5 0.01  0.0    0  6.3 16  90   M    M   M 1      20  80
 6  71  61  66   6   0   1    T  0.0    0  5.0 10 130   M    M  10 1      14  90
 7  70  58  64   3   1   0 0.00  0.0    0  9.2 17 160   M    M  10        26 140
 8  70  57  64   3   1   0 0.09  0.0    0  9.4 20 190   M    M   9 1      25 190
 9  73  56  65   4   0   0 0.37  0.0    0  5.8 22 320   M    M  10 1      26 320
10  66  50  58  -3   7   0 0.00  0.0    0 11.5 30 310   M    M   4 1      39 320
11  73  39  56  -6   9   0 0.00  0.0    0  6.0 18 320   M    M   1        24 300
12  77  42  60  -2   5   0 0.00  0.0    0  2.5 13 190   M    M   5        17 190
13  81  57  69   7   0   4 0.00  0.0    0  7.4 18 200   M    M   9        25 200
14  67  61  64   2   1   0 0.46  0.0    0  6.3 16 200   M    M  10 1      23 200
15  80  64  72   9   0   7 0.68  0.0    0  4.6 12 190   M    M   7 13     15 260
16  83  57  70   7   0   5 0.00  0.0    0  4.6 12 340   M    M   6 12     20 350
17  73  50  62  -1   3   0 0.00  0.0    0  8.5 17  20   M    M   3        22  10
18  75  45  60  -4   5   0 0.00  0.0    0  4.6 12 110   M    M   5        17  90
19  81  48  65   1   0   0 0.00  0.0    0  2.8 13  20   M    M   5        17 330
20  82  51  67   3   0   2 0.01  0.0    0  8.9 17  50   M    M   4 1      22 120
21  70  64  67   3   0   2 0.37  0.0    0  6.0 14  60   M    M   9 13     17  60
22  80  63  72   7   0   7 0.44  0.0    0  3.6 15 300   M    M   9 13     20 290
23  80  62  71   6   0   6 1.41  0.0    0  2.7 15  60   M    M   7 138    17  50
24  81  63  72   7   0   7 0.16  0.0    0  5.5 17 200   M    M   7 12     23 190
25  85  66  76  10   0  11 0.00  0.0    0  4.7 10 140   M    M   7 18     14 140
26  86  66  76  10   0  11 0.00  0.0    0  5.4 10 170   M    M   5        15 170
27  86  67  77  11   0  12 0.30  0.0    0  8.1 39 350   M    M   5 1      52 350
28  90  66  78  11   0  13 0.00  0.0    0  5.7 17 190   M    M   4        23 190
29  88  69  79  12   0  14 0.93  0.0    0  7.7 23 320   M    M   4 13     29 320
30  85  65  75   8   0  10 0.00  0.0    0  3.1 10 290   M    M   7        16 330
31  82  64  73   5   0   8 0.00  0.0    0  5.5 15 320   M    M   3        20 310
================================================================================
SM 2444 1802        32 146  5.38     0.0 182.6          M      195
================================================================================
AV 78.8 58.1                               5.9 FASTST   M    M   7    MAX(MPH)
                                 MISC ---->  # 39 350               # 52  350
================================================================================
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:     2012
                                          LATITUDE:   38 57 N
                                          LONGITUDE:  77 27 W

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

AVERAGE MONTHLY: 68.5   TOTAL FOR MONTH:   5.38    1 = FOG OR MIST
DPTR FM NORMAL:   5.3   DPTR FM NORMAL:    0.83    2 = FOG REDUCING VISIBILITY
HIGHEST:    90 ON 28    GRTST 24HR  1.66 ON 22-23      TO 1/4 MILE OR LESS
LOWEST:     39 ON 11                               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:  15
MAX 90 OR ABOVE:   1    0.10 INCH OR MORE:   9
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   3
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.    32    CLEAR  (SCALE 0-3)   2
DPTR FM NORMAL   -98    PTCLDY (SCALE 4-7)  19
TOTAL FM JUL 1  3761    CLOUDY (SCALE 8-10)  9
DPTR FM NORMAL  -941

[CDD (BASE 65) ]
TOTAL THIS MO.   146
DPTR FM NORMAL    74    [PRESSURE DATA]
TOTAL FM JAN 1   174    HIGHEST SLP M ON M
DPTR FM NORMAL    82    LOWEST  SLP 29.61 ON 10

[REMARKS]
#FINAL-05-12#