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

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CXUS51 KPHI 251818
CF6ABE
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   ALLENTOWN PA
                                          MONTH:     APRIL
                                          YEAR:      2021
                                          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  49  31  40  -6  25   0 0.02    T    0 16.6 24 340   M    M   8        34 300
 2  41  24  33 -14  32   0 0.00  0.0    0 13.5 26 350   M    M   2        38 320
 3  52  20  36 -11  29   0 0.00  0.0    0  5.4 14 260   M    M   1        21 290
 4  67  39  53   6  12   0 0.00  0.0    0  8.0 22 350   M    M   7        29 300
 5  67  37  52   4  13   0 0.00  0.0    0 10.7 25 330   M    M   0        33 330
 6  70  41  56   8   9   0 0.00  0.0    0  8.2 22 340   M    M   1        29 350
 7  72  47  60  11   5   0    T  0.0    0  3.7 10  70   M    M   5        14  90
 8  71  41  56   7   9   0 0.00  0.0    0  6.5 16 200   M    M   0        20 140
 9  58  46  52   3  13   0 0.02  0.0    0  5.6 10 150   M    M   7        15 130
10  68  50  59   9   6   0    T  0.0    0  4.2 14 210   M    M   7        17 210
11  61  50  56   6   9   0 0.46  0.0    0 10.3 20 100   M    M   9 1      25 100
12  50  46  48  -2  17   0 0.36  0.0    0  8.2 18  70   M    M  10 1      26  70
13  66  41  54   3  11   0    T  0.0    0  4.7 15  50   M    M   3        18  50
14  64  41  53   2  12   0    T  0.0    0  5.8 18 220   M    M   5        22 210
15  58  42  50  -2  15   0 0.00  0.0    0  7.3 24 330   M    M  10        31 330
16  49  34  42 -10  23   0    T  0.0    0 10.2 21 300   M    M   8        28 280
17  53  41  47  -5  18   0    T  0.0    0  7.3 16 340   M    M   9        21 350
18  61  43  52  -1  13   0 0.00  0.0    0  5.2 15 250   M    M   7        22 260
19  65  37  51  -2  14   0 0.03  0.0    0  2.5 13 230   M    M   4        16 210
20  74  35  55   1  10   0 0.00  0.0    0  9.2 25 230   M    M   0        31 220
21  67  34  51  -3  14   0 0.02  0.0    0 11.0 28 290   M    M   5 3      38 300
22  47  32  40 -14  25   0 0.00  0.0    0 13.0 25 300   M    M   4        34 320
23  63  33  48  -7  17   0 0.00  0.0    0 10.6 24 240   M    M   2        31 250
24  68  37  53  -2  12   0 0.01  0.0    0  7.1 16 220   M    M   2        22 240
25  64  47  56   0   9   0 0.28  0.0    0  7.6 21 310   M    M   6 1      26 310
26  60  36  48  -8  17   0 0.00  0.0    0  8.5 17 320   M    M   0        24 310
27  75  39  57   1   8   0    T  0.0    0  3.4 10  40   M    M   2        15 230
28  86  47  67  10   0   2    T  0.0    0  7.1 26 240   M    M   2        32 230
29  77  61  69  12   0   4 0.02  0.0    0  9.9 23 250   M    M   7 1      33 260
30  67  42  55  -2  10   0    T  0.0    0 17.0 35 260   M    M   6        49 260
================================================================================
SM 1890 1194       407   6  1.22    T    248.3          M      139
================================================================================
AV 63.0 39.8                               8.3 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->    35 260                 49 260
================================================================================
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:     APRIL
                                          YEAR:      2021
                                          LATITUDE:   40 39 N
                                          LONGITUDE:  75 26 W

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

AVERAGE MONTHLY: 51.4   TOTAL FOR MONTH:   1.22    1 = FOG OR MIST
DPTR FM NORMAL:  -0.4   DPTR FM NORMAL:   -2.45    2 = FOG REDUCING VISIBILITY
HIGHEST:    86 ON 28    GRTST 24HR  0.82 ON 11-12      TO 1/4 MILE OR LESS
LOWEST:     20 ON  3                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:  T            5 = HAIL
                        GRTST 24HR   T   ON  1- 1  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:   9
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   3
MIN 32 OR BELOW:   4    0.50 INCH OR MORE:   0
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   407    CLEAR  (SCALE 0-3)  12
DPTR FM NORMAL     4    PTCLDY (SCALE 4-7)  14
TOTAL FM JUL 1  5068    CLOUDY (SCALE 8-10)  4
DPTR FM NORMAL   -56

[CDD (BASE 65) ]
TOTAL THIS MO.     6
DPTR FM NORMAL    -2    [PRESSURE DATA]
TOTAL FM JAN 1     6    HIGHEST SLP 30.42 ON  3
DPTR FM NORMAL    -2    LOWEST  SLP 29.42 ON 29

[REMARKS]
#FINAL-04-21#
CORRECTION TO REMOVE AN ERRONEOUS TRACE OF SNOW FOR APRIL 2. THE SNOW FLURRIES ENDED JUST BEFORE MIDNIGHT LST.


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