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

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CXUS51 KLWX 220620
CF6IAD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   WASHINGTON DULLES DC
                                          MONTH:     DECEMBER
                                          YEAR:      2014
                                          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  70  41  56  15   9   0 0.01  0.0    0  9.1 28 330   M    M   6        36 330
 2  41  34  38  -3  27   0 0.54  0.0    0  5.6 14  30   M    M  10 1      17  30
 3  49  36  43   3  22   0 0.02  0.0    0 10.0 23 310   M    M   9 1      29 320
 4  43  28  36  -4  29   0    T    T    0  3.8 13 320   M    M   9 4      17 300
 5  40  37  39  -1  26   0 0.04  0.0    0  3.3  8 150   M    M  10 148    12 140
 6  48  40  44   5  21   0 0.53  0.0    0  7.3 24 360   M    M  10 1      30 360
 7  44  32  38  -1  27   0 0.00  0.0    0 13.1 22 350   M    M   3        28 350
 8  35  29  32  -6  33   0 0.07    T    0  8.3 16 350   M    M   9 16     21 350
 9  42  29  36  -2  29   0 0.45  0.0    0 12.4 17 320   M    M   9 16     24 320
10  45  35  40   2  25   0 0.00  0.0    0 18.4 31 290   M    M   6        40 300
11  39  32  36  -2  29   0 0.00  0.0    0 13.3 31 290   M    M   7        40 300
12  42  27  35  -2  30   0 0.00  0.0    0 11.6 24 290   M    M   6 1      30 290
13  48  23  36  -1  29   0 0.00  0.0    0  6.4 16 320   M    M   6        22 330
14  52  34  43   6  22   0 0.00  0.0    0 11.4 24 300   M    M   6        31 300
15  58  33  46  10  19   0 0.00  0.0    0  2.4  9 190   M    M   5 1      13 330
16  44  28  36   0  29   0 0.41  0.0    0  2.2 10 160   M    M   8 12     14 160
17  52  33  43   7  22   0 0.00  0.0    0  9.7 23 320   M    M   5 12     29 320
18  38  31  35  -1  30   0 0.00  0.0    0 12.1 23 300   M    M   7        29 300
19  38  29  34  -1  31   0 0.00  0.0    0 10.1 20 310   M    M   6        24 320
20  35  20  28  -7  37   0 0.00  0.0    0  1.3 12 340   M    M   7        15 330
21  40  25  33  -2  32   0 0.00  0.0    0  1.6  7  60   M    M   7         9  10
================================================================================
SM  943  656       558   0  2.07    T    173.4          M      151
================================================================================
AV 44.9 31.2                               8.3 FASTST   M    M   7    MAX(MPH)
                                 MISC ---->  # 31 290               # 40  300
================================================================================
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:    DECEMBER
                                          YEAR:     2014
                                          LATITUDE:   38 57 N
                                          LONGITUDE:  77 27 W

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

AVERAGE MONTHLY: 38.1   TOTAL FOR MONTH:   2.07    1 = FOG OR MIST
DPTR FM NORMAL:   0.4   DPTR FM NORMAL:   -0.05    2 = FOG REDUCING VISIBILITY
HIGHEST:    70 ON  1    GRTST 24HR  0.55 ON  2- 3      TO 1/4 MILE OR LESS
LOWEST:     20 ON 20                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:    T          5 = HAIL
                        GRTST 24HR    T  ON  8- 8  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:   0    0.10 INCH OR MORE:   4
MIN 32 OR BELOW:  12    0.50 INCH OR MORE:   2
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   558    CLEAR  (SCALE 0-3)   1
DPTR FM NORMAL   -16    PTCLDY (SCALE 4-7)  12
TOTAL FM JUL 1  1552    CLOUDY (SCALE 8-10)  8
DPTR FM NORMAL    62

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1   968    HIGHEST SLP M ON M
DPTR FM NORMAL  -210    LOWEST  SLP 29.81 ON 10

[REMARKS]


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