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

                                          STATION:   WASHINGTON DULLES DC
                                          MONTH:     AUGUST
                                          YEAR:      2011
                                          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  99  68  84   8   0  19 0.14  0.0    0  5.8 26 300   M    M   5 13     32 300
 2  95  66  81   5   0  16    T  0.0    0  5.5 20 320   M    M   5        28 320
 3  84  72  78   2   0  13 0.03  0.0    0  3.5 29 250   M    M  10 18     40 240
 4  88  73  81   5   0  16 0.00  0.0    0  8.1 17  30   M    M   8 18     20 100
 5  86  66  76   0   0  11 0.00  0.0    0  6.9 15 150   M    M   7        20 150
 6  89  72  81   5   0  16 0.55  0.0    0  7.8 15 200   M    M   8 13     22 190
 7  93  74  84   8   0  19 0.01  0.0    0  5.3 17 360   M    M   7 1      21 270
 8  92  73  83   7   0  18 0.00  0.0    0  7.1 16 340   M    M   4        22 310
 9  93  69  81   5   0  16    T  0.0    0  6.1 21 290   M    M   4 8      25 290
10  92  68  80   4   0  15 0.00  0.0    0  7.6 22 300   M    M   4        28 330
11  87  66  77   1   0  12 0.00  0.0    0  5.1 16 330   M    M   4        23 350
12  88  62  75  -1   0  10 0.00  0.0    0  4.5 12 110   M    M   5        15 360
13  84  63  74  -2   0   9 0.36  0.0    0  6.4 21 180   M    M   8 18     30 180
14  88  67  78   2   0  13 0.08  0.0    0  5.9 28 340   M    M   8 1      37 340
15  84  66  75  -1   0  10 0.00  0.0    0  9.0 17 320   M    M   7        23 300
16  87  66  77   1   0  12 0.00  0.0    0  8.3 21 330   M    M   4        28 330
17  90  59  75  -1   0  10 0.00  0.0    0  4.6 16 150   M    M   3        23 130
18  92  69  81   5   0  16 0.65  0.0    0  6.8 20 340   M    M   7 13     29 330
19  87  65  76   1   0  11 0.04  0.0    0  3.3 28 350   M    M   6 1238   33 350
20  89  63  76   1   0  11 0.00  0.0    0  4.3 12 170   M    M   4 18     17 190
21  89  73  81   6   0  16 0.39  0.0    0  3.7 24 310   M    M   8 3      33 320
22  83  60  72  -3   0   7    T  0.0    0  9.5 20 320   M    M   5        25 320
23  82  52  67  -8   0   2 0.00  0.0    0  3.3 10 150   M    M   4        13 150
24  87  56  72  -3   0   7 0.00  0.0    0 10.1 24 210   M    M   4        32 220
25  81  66  74   0   0   9 0.08  0.0    0  7.0 16 200   M    M   6 1      21 210
26  88  64  76   2   0  11 0.00  0.0    0  3.5  7 120   M    M   6 1       9 110
27  79  70  75   1   0  10 1.17  0.0    0 14.1 32 340   M    M  10 1      45 340
28  85  67  76   2   0  11 0.24  0.0    0 15.7 31 330   M    M   6 1      44 360
29  78  61  70  -4   0   5 0.00  0.0    0  6.1 13  30   M    M   7        14  20
30  83  55  69  -5   0   4 0.00  0.0    0  3.8 10 150   M    M   1        13 140
31  83  54  69  -4   0   4 0.00  0.0    0  2.7 12 140   M    M   4        15 140
================================================================================
SM 2705 2025         0 359  3.74     0.0 201.4          M      179
================================================================================
AV 87.3 65.3                               6.5 FASTST   M    M   6    MAX(MPH)
                                 MISC ---->  # 32 340               # 45  340
================================================================================
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:    AUGUST
                                          YEAR:     2011
                                          LATITUDE:   38 57 N
                                          LONGITUDE:  77 27 W

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

AVERAGE MONTHLY: 76.3   TOTAL FOR MONTH:   3.74    1 = FOG OR MIST
DPTR FM NORMAL:   0.9   DPTR FM NORMAL:    0.21    2 = FOG REDUCING VISIBILITY
HIGHEST:    99 ON  1    GRTST 24HR  1.17 ON 27-27      TO 1/4 MILE OR LESS
LOWEST:     52 ON 23                               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:  12
MAX 90 OR ABOVE:   8    0.10 INCH OR MORE:   7
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.     0    CLEAR  (SCALE 0-3)   1
DPTR FM NORMAL    -2    PTCLDY (SCALE 4-7)  27
TOTAL FM JUL 1     0    CLOUDY (SCALE 8-10)  3
DPTR FM NORMAL    -2

[CDD (BASE 65) ]
TOTAL THIS MO.   359
DPTR FM NORMAL    35    [PRESSURE DATA]
TOTAL FM JAN 1  1335    HIGHEST SLP M ON M
DPTR FM NORMAL   319    LOWEST  SLP 29.09 ON 28

[REMARKS]
#FINAL-08-11#