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

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138
CXUS51 KPHI 310915
CF6ABE
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   ALLENTOWN PA
                                          MONTH:     DECEMBER
                                          YEAR:      2025
                                          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  41  24  33  -6  32   0 0.00  0.0    0  6.7 18 330   M    M   1        29 330
 2  35  26  31  -7  34   0 0.55  0.8    0  6.5 21 310   M    M   8 16     34 340
 3  39  25  32  -6  33   0 0.00  0.0    T  7.6 22 320   M    M   2        33 300
 4  39  18  29  -9  36   0    T    T    0  9.9 21 350   M    M   3        34 280
 5  25  12  19 -19  46   0 0.00  0.0    0  4.0  9  60   M    M   5        11  60
 6  38  24  31  -6  34   0 0.00  0.0    0  3.8 12 240   M    M   5 1      14 240
 7  38  28  33  -4  32   0 0.00  0.0    0  5.6 13 230   M    M  10 1      18 220
 8  35  14  25 -12  40   0 0.00  0.0    0  9.9 23 360   M    M   2        34 360
 9  31   8  20 -16  45   0 0.00  0.0    0  4.4 16 210   M    M   2        24 190
10  40  26  33  -3  32   0 0.22  0.4    0  3.9 15 220   M    M   8 1      19 210
11  37  25  31  -5  34   0 0.00  0.0    T 13.8 25 300   M    M   3 1      37 300
12  32  16  24 -12  41   0 0.00  0.0    0  7.6 15 290   M    M   1        24 300
13  35  14  25 -11  40   0 0.08  1.3    0  2.9  9 210   M    M   6 1      14 220
14  32  16  24 -11  41   0 0.23  3.7    5 11.9 23 330   M    M   8 1      33 330
15  25  14  20 -15  45   0 0.00  0.0    5  9.8 17 260   M    M   5        26 320
16  28  10  19 -16  46   0 0.00  0.0    4  5.1 13 240   M    M   2        17 250
17  39  13  26  -8  39   0 0.00  0.0    3  3.5 10 230   M    M   4        16 240
18  49  18  34   0  31   0 0.08  0.0    2  4.4 10  90   M    M   2 1      20  80
19  59  27  43   9  22   0 0.59  0.0    0 16.7 37 250   M    M   9 13     58 280
20  36  20  28  -6  37   0 0.00  0.0    0  8.0 25 300   M    M   0        39 300
21  45  23  34   0  31   0 0.00  0.0    0  9.8 23 290   M    M   0        36 320
22  38  18  28  -5  37   0 0.00  0.0    0  6.5 13 250   M    M   1        19 250
23  37  30  34   1  31   0 0.11  0.8    0  3.6 15 190   M    M  10 1      22 170
24  47  31  39   6  26   0 0.00  0.0    0 10.1 32 330   M    M   1        44 350
25  51  24  38   5  27   0 0.00  0.0    0  9.5 31 330   M    M   4        42 340
26  27  19  23 -10  42   0 0.46  0.5    0  6.2 13 120   M    M   6 146    20 150
27  32  23  28  -4  37   0 0.02    T    T  4.8 12  40   M    M   9 1      14  40
28  33  20  27  -5  38   0    T  0.0    T  2.1  8 150   M    M   7 16     14 290
29  46  29  38   6  27   0 0.20    T    T 11.2 29 260   M    M   8 12     47 270
30  31  26  29  -3  36   0    T    T    0 16.8 26 280   M    M  10        44 290
================================================================================
SM 1120  621      1072   0  2.54  7.5    226.6          M      142
================================================================================
AV 37.3 20.7                               7.6 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->    37 250                 58 280
================================================================================
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:      2025
                                          LATITUDE:   40 39 N
                                          LONGITUDE:  75 26 W

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

AVERAGE MONTHLY: 29.0   TOTAL FOR MONTH:   2.54    1 = FOG OR MIST
DPTR FM NORMAL:  -6.0   DPTR FM NORMAL:   -1.21    2 = FOG REDUCING VISIBILITY
HIGHEST:    59 ON 19    GRTST 24HR  0.67 ON 18-19      TO 1/4 MILE OR LESS
LOWEST:      8 ON  9                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:   7.7 INCHES  5 = HAIL
                        GRTST 24HR   3.7 ON 14-14  6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:   5 ON 15,14  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:   9    0.01 INCH OR MORE:  10
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   7
MIN 32 OR BELOW:  30    0.50 INCH OR MORE:   2
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.  1072    CLEAR  (SCALE 0-3)  11
DPTR FM NORMAL   174    PTCLDY (SCALE 4-7)  12
TOTAL FM JUL 1  2084    CLOUDY (SCALE 8-10)  7
DPTR FM NORMAL   150

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1   924    HIGHEST SLP M ON M
DPTR FM NORMAL   -57    LOWEST  SLP 29.33 ON 19

[REMARKS]