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

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000
CXUS51 KLWX 260620
CF6DCA
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   WASHINGTON NATIONAL DC
                                          MONTH:     JULY
                                          YEAR:      2017
                                          LATITUDE:   38 50 N
                                          LONGITUDE:  77  2 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  93  73  83   4   0  18 0.65  0.0    0  9.7 28 290   M    M   7 13     33 290
 2  93  75  84   5   0  19 0.00  0.0    0  5.7 15 220   M    M   7        19 220
 3  92  75  84   5   0  19 0.00  0.0    0  6.4 15 350   M    M   7        19 330
 4  92  76  84   5   0  19 0.04  0.0    0  4.9 20 300   M    M   8 38     23 300
 5  84  74  79  -1   0  14 0.70  0.0    0  7.8 21 170   M    M  10 18     24 170
 6  82  74  78  -2   0  13 0.87  0.0    0  7.3 14  60   M    M   9 13     17  60
 7  91  73  82   2   0  17 0.01  0.0    0  8.6 26 270   M    M   6 1      34 260
 8  90  72  81   1   0  16 0.00  0.0    0  8.5 28 330   M    M   6        38 340
 9  86  69  78  -2   0  13 0.00  0.0    0  7.5 15 340   M    M   3        21 320
10  90  72  81   1   0  16 0.00  0.0    0  9.1 18 210   M    M   6        26 200
11  92  75  84   4   0  19    T  0.0    0  8.0 18 220   M    M   8        24 220
12  95  77  86   6   0  21 0.00  0.0    0  7.6 16 210   M    M   8        22 240
13  97  79  88   8   0  23 0.00  0.0    0  8.7 20 230   M    M   7        25 210
14  97  73  85   5   0  20 0.73  0.0    0  8.2 37  50   M    M   7 13     48 330
15  90  76  83   3   0  18 0.00  0.0    0  9.4 21 340   M    M   6        25 340
16  89  71  80   0   0  15 0.00  0.0    0  7.0 14 120   M    M   4        19 320
17  91  76  84   4   0  19    T  0.0    0  7.9 20  60   M    M   7 3      21  60
18  92  77  85   5   0  20    T  0.0    0  7.4 24  80   M    M   5 38     36 130
19  97  77  87   7   0  22 0.00  0.0    0  6.6 14 220   M    M   4        18 170
20  98  79  89   9   0  24 0.00  0.0    0  6.4 15 220   M    M   7        19 220
21  97  81  89   9   0  24 0.00  0.0    0  6.3 15 320   M    M   6        18 310
22  96  74  85   5   0  20 0.98  0.0    0  7.8 38 340   M    M   8 13     48 340
23  89  73  81   1   0  16 1.39  0.0    0  5.3 26 310   M    M   8 13     34 340
24  91  74  83   3   0  18    T  0.0    0  7.9 20 210   M    M   7        24 220
25  82  71  77  -3   0  12 0.00  0.0    0 11.1 18  10   M    M   7        24 360
================================================================================
SM 2286 1866         0 455  5.37     0.0 191.1          M      168
================================================================================
AV 91.4 74.6                               7.6 FASTST   M    M   7    MAX(MPH)
                                 MISC ---->  # 38 340               # 48  330
================================================================================
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 NATIONAL DC
                                          MONTH:    JULY
                                          YEAR:     2017
                                          LATITUDE:   38 50 N
                                          LONGITUDE:  77  2 W

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

AVERAGE MONTHLY: 83.0   TOTAL FOR MONTH:   5.37    1 = FOG OR MIST
DPTR FM NORMAL:   3.2   DPTR FM NORMAL:    2.34    2 = FOG REDUCING VISIBILITY
HIGHEST:    98 ON 20    GRTST 24HR  1.39 ON 23-23      TO 1/4 MILE OR LESS
LOWEST:     69 ON  9                               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:  19    0.10 INCH OR MORE:   6
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.     0    CLEAR  (SCALE 0-3)   1
DPTR FM NORMAL     0    PTCLDY (SCALE 4-7)  20
TOTAL FM JUL 1     0    CLOUDY (SCALE 8-10)  4
DPTR FM NORMAL     0

[CDD (BASE 65) ]
TOTAL THIS MO.   455
DPTR FM NORMAL    85    [PRESSURE DATA]
TOTAL FM JAN 1  1030    HIGHEST SLP M ON M
DPTR FM NORMAL   212    LOWEST  SLP 29.71 ON 24

[REMARKS]



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