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000
CXUS51 KLWX 182036
CF6IAD

CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   WASHINGTON DULLES DC
                                          MONTH:     JULY
                                          YEAR:      2009
                                          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  85  64  75   1   0  10 0.03  0.0    0  2.4 13 290   M    M   7 1      26 120
 2  82  63  73  -2   0   8 0.00  0.0    0  6.7 17 280   M    M   6 1      22 270
 3  81  58  70  -5   0   5 0.00  0.0    0  6.6 16 310   M    M   5        22 320
 4  84  60  72  -3   0   7 0.00  0.0    0  7.4 17 280   M    M   7        23 290
 5  72  63  68  -7   0   3    T  0.0    0  4.1 10 210   M    M   9        13 190
 6  86  58  72  -3   0   7 0.00  0.0    0  3.5 13 340   M    M   3 1      22  20
 7  89  63  76   1   0  11 0.00  0.0    0  5.3 17 270   M    M   4        23 290
 8  81  61  71  -4   0   6 0.00  0.0    0  6.8 15 300   M    M   4        22 280
 9  82  58  70  -6   0   5 0.00  0.0    0  3.7 10 110   M    M   7        17  70
10  81  64  73  -3   0   8 0.00  0.0    0  5.6 13 190   M    M   7        17 200
11  84  66  75  -1   0  10 0.02  0.0    0  9.1 16 180   M    M   8        20 200
12  90  68  79   3   0  14 0.00  0.0    0  7.1 17 270   M    M   6 18     32 300
13  87  64  76   0   0  11 0.00  0.0    0  4.4 15 300   M    M   6 8      25 290
14  85  53  69  -7   0   4 0.00  0.0    0  4.8 15 320   M    M   4        31 210
15  89  59  74  -2   0   9 0.00  0.0    0  6.9 18 190   M    M   7        24 180
16  95  71  83   7   0  18 0.00  0.0    0  7.7 18 280   M    M   7        24 260
17  87  69  78   2   0  13 0.04  0.0    0  4.6 15 310   M    M   8 18     20 360
18  83  62  73  -3   0   8 0.00  0.0    0  7.6 20 310   M    M   6        25 310
19  83  56  70  -6   0   5 0.00  0.0    0  2.3 13 330   M    M   4        31 300
20  81  64  73  -3   0   8    T  0.0    0  3.9 12  90   M    M   9        15  50
21  85  67  76   0   0  11    T  0.0    0  4.2  9 210   M    M   8 8      13 200
22  89  65  77   1   0  12    T  0.0    0  6.1 17 150   M    M   7 18     23 130
23  85  69  77   1   0  12 1.48  0.0    0  5.3 22 130   M    M   8 1238   29 140
24  86  63  75  -1   0  10 0.00  0.0    0  3.6 12 230   M    M   5 1      16 220
25  90  64  77   1   0  12 0.23  0.0    0  6.7 23 280   M    M   6 138    32 280
26  89  69  79   3   0  14 0.07  0.0    0  4.7 18 220   M    M   8 1      29 100
27  89  71  80   4   0  15    T  0.0    0  5.0 22 330   M    M   8 1      30 320
28  91  70  81   5   0  16 0.00  0.0    0  3.3 12 160   M    M   7 18     15 150
29  85  72  79   3   0  14 0.06  0.0    0  8.2 20 220   M    M   9 1      26 240
30  88  70  79   3   0  14    T  0.0    0  4.9 22 300   M    M   6        35 220
31  88  68  78   2   0  13 0.25  0.0    0  6.9 26 310   M    M   8 18     36 310
================================================================================
SM 2652 1992         0 313  2.18     0.0 169.4          M      204
================================================================================
AV 85.5 64.3                               5.5 FASTST   M    M   7    MAX(MPH)
                                 MISC ---->  # 26 310               # 36  310
================================================================================
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:    JULY
                                          YEAR:     2009
                                          LATITUDE:   38 57 N
                                          LONGITUDE:  77 27 W

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

AVERAGE MONTHLY: 74.9   TOTAL FOR MONTH:   2.18    1 = FOG OR MIST
DPTR FM NORMAL:  -0.8   DPTR FM NORMAL:   -1.39    2 = FOG REDUCING VISIBILITY
HIGHEST:    95 ON 16    GRTST 24HR  1.48 ON 23-23      TO 1/4 MILE OR LESS
LOWEST:     53 ON 14                               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:   8
MAX 90 OR ABOVE:   4    0.10 INCH OR MORE:   3
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   1
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    -1    PTCLDY (SCALE 4-7)  25
TOTAL FM JUL 1     0    CLOUDY (SCALE 8-10)  5
DPTR FM NORMAL    -1

[CDD (BASE 65) ]
TOTAL THIS MO.   313
DPTR FM NORMAL   -32    [PRESSURE DATA]
TOTAL FM JAN 1   706    HIGHEST SLP M ON M
DPTR FM NORMAL    83    LOWEST  SLP 29.65 ON  1

[REMARKS]
#FINAL-07-09#