WFO Monthly/Daily Climate Data
Issued by NWS Mt. Holly, NJ

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000
CXUS51 KPHI 110800
CF6ABE
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   ALLENTOWN PA
                                          MONTH:     DECEMBER
                                          YEAR:      2017
                                          LATITUDE:   40 39 N
                                          LONGITUDE:  75 26 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  53  29  41   4  24   0    T    M    0  4.8 14 330   M    M   2 1      19 320
 2  50  25  38   1  27   0 0.00  0.0    0  1.7  6 310   M    M   0         7  70
 3  48  27  38   2  27   0 0.00  0.0    0  0.8  6 220   M    M   4 18      7 210
 4  50  27  39   3  26   0 0.00  0.0    0  2.0  8 130   M    M   7 128    13 130
 5  57  47  52  16  13   0 0.22  0.0    0  8.2 17 200   M    M  10 1      23 170
 6  56  28  42   7  23   0    T  0.0    0  9.6 28 300   M    M   2 18     39 300
 7  45  24  35   0  30   0    T    T    0  8.7 21 260   M    M   5        27 240
 8  35  29  32  -2  33   0 0.00  0.0    0  5.5 12 250   M    M   1        16 270
 9  33  24  29  -5  36   0 0.31  4.9    0  3.5  9 260   M    M  10 18     13  80
10  38  14  26  -8  39   0 0.00  0.0    5  8.8 21 250   M    M   4 18     27 250
================================================================================
SM  465  274       278   0  0.53     4.9  53.6          M       45
================================================================================
AV 46.5 27.4                               5.4 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->  # 28 300               # 39  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:  ALLENTOWN PA
                                          MONTH:    DECEMBER
                                          YEAR:     2017
                                          LATITUDE:   40 39 N
                                          LONGITUDE:  75 26 W

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

AVERAGE MONTHLY: 37.0   TOTAL FOR MONTH:   0.53    1 = FOG OR MIST
DPTR FM NORMAL:   1.5   DPTR FM NORMAL:   -0.78    2 = FOG REDUCING VISIBILITY
HIGHEST:    57 ON  5    GRTST 24HR  0.31 ON  9- 9      TO 1/4 MILE OR LESS
LOWEST:     14 ON 10                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:   4.9 INCHES  5 = HAIL
                        GRTST 24HR   4.9 ON  9- 9  6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:   5 ON 10     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:   2
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   2
MIN 32 OR BELOW:   9    0.50 INCH OR MORE:   0
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   278    CLEAR  (SCALE 0-3)   4
DPTR FM NORMAL   -17    PTCLDY (SCALE 4-7)   4
TOTAL FM JUL 1  1191    CLOUDY (SCALE 8-10)  2
DPTR FM NORMAL  -284

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1  1004    HIGHEST SLP M ON M
DPTR FM NORMAL   247    LOWEST  SLP 29.71 ON  9

[REMARKS]


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