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

                                          STATION:   WASHINGTON DULLES DC
                                          MONTH:     MAY
                                          YEAR:      2010
                                          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  90  57  74  16   0   9 0.00  0.0    0  8.1 18 190   M    M   5        28 320
 2  88  70  79  21   0  14 0.01  0.0    0  9.8 17 210   M    M   8        23 220
 3  83  67  75  17   0  10 0.55  0.0    0  8.0 22 280   M    M   9 1      29 280
 4  82  59  71  12   0   6 0.00  0.0    0  6.4 20 290   M    M   5 1      24 280
 5  84  50  67   8   0   2 0.00  0.0    0  5.3 18 190   M    M   1        24 210
 6  83  61  72  13   0   7 0.00  0.0    0 11.7 25 290   M    M   2        35 320
 7  78  48  63   3   2   0 0.00  0.0    0  7.3 17 150   M    M   3        23 150
 8  76  54  65   5   0   0    T  0.0    0 18.1 32 290   M    M   5        43 280
 9  63  47  55  -5  10   0 0.00  0.0    0 13.3 26 300   M    M   5        38 310
10  67  34  51  -9  14   0 0.00  0.0    0  6.8 20 310   M    M   2        32 290
11  55  39  47 -14  18   0 0.09  0.0    0  7.8 17 130   M    M   7 18     25 120
12  79  53  66   5   0   1 0.05  0.0    0  6.7 20 280   M    M   9 138    35 240
13  63  52  58  -3   7   0    T  0.0    0  6.5 14 180   M    M  10 18     26 350
14  89  59  74  12   0   9 0.07  0.0    0  9.1 33 210   M    M   9 138    45 240
15  80  56  68   6   0   3 0.00  0.0    0  8.7 22 320   M    M   5        28 310
16  74  57  66   4   0   1    T  0.0    0  5.4 13 350   M    M   9        17 350
17  64  53  59  -4   6   0 0.53  0.0    0  3.6 15  30   M    M  10 1      24 350
18  60  51  56  -7   9   0 0.01  0.0    0  8.2 14 360   M    M  10 1      21 350
19  62  47  55  -8  10   0    T  0.0    0  2.8  9 310   M    M   9 18     12 300
20  81  47  64   1   1   0 0.00  0.0    0  4.1 15 310   M    M   4 18     20 310
21  86  51  69   5   0   4 0.00  0.0    0  4.0 14 180   M    M   7 1      21 140
22  77  63  70   6   0   5 0.61  0.0    0  6.9 16 140   M    M  10 13     22 130
23  75  65  70   6   0   5 2.40  0.0    0  7.4 15  50   M    M   8 13     18  60
24  78  64  71   6   0   6 0.01  0.0    0  4.2 12  50   M    M   8 1      15  60
25  80  60  70   5   0   5 0.00  0.0    0  3.8 10  90   M    M   8        14  80
26  87  58  73   8   0   8 0.00  0.0    0  4.2 13 330   M    M   6 1      18 340
27  92  65  79  13   0  14 1.09  0.0    0  5.5 30 250   M    M   4 123    37 240
28  76  63  70   4   0   5    T  0.0    0  6.7 16  70   M    M   8 1      23  40
29  81  67  74   8   0   9 0.00  0.0    0  4.4 12 190   M    M   7        31 210
30  87  64  76   9   0  11 0.00  0.0    0  3.7 13 320   M    M   1 1      16 350
31  90  65  78  11   0  13 0.00  0.0    0  6.5 16 210   M    M   5        24 210
================================================================================
SM 2410 1746        77 147  5.42     0.0 215.0          M      199
================================================================================
AV 77.7 56.3                               6.9 FASTST   M    M   6    MAX(MPH)
                                 MISC ---->  # 33 210               # 45  240
================================================================================
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:     2010
                                          LATITUDE:   38 57 N
                                          LONGITUDE:  77 27 W

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

AVERAGE MONTHLY: 67.0   TOTAL FOR MONTH:   5.42    1 = FOG OR MIST
DPTR FM NORMAL:   4.7   DPTR FM NORMAL:    1.20    2 = FOG REDUCING VISIBILITY
HIGHEST:    92 ON 27    GRTST 24HR  2.90 ON 22-23      TO 1/4 MILE OR LESS
LOWEST:     34 ON 10                               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:  11
MAX 90 OR ABOVE:   3    0.10 INCH OR MORE:   5
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   5
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   2

[HDD (BASE 65) ]
TOTAL THIS MO.    77    CLEAR  (SCALE 0-3)   4
DPTR FM NORMAL   -62    PTCLDY (SCALE 4-7)  16
TOTAL FM JUL 1  4330    CLOUDY (SCALE 8-10) 11
DPTR FM NORMAL  -601

[CDD (BASE 65) ]
TOTAL THIS MO.   147
DPTR FM NORMAL    87    [PRESSURE DATA]
TOTAL FM JAN 1   189    HIGHEST SLP M ON M
DPTR FM NORMAL   114    LOWEST  SLP 29.53 ON  8

[REMARKS]
#FINAL-05-10#