707
CXUS51 KPHI 012127
CLMABE

CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
527 PM EDT TUE OCT 01 2024

...................................

...THE ALLENTOWN PA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1922 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             99   09/02/1980
                       09/03/1953
                       09/02/1953
 LOW              30   09/28/1947
HIGHEST           85                 89      -4       92
LOWEST            44                 39       5       43
AVG. MAXIMUM    75.7               77.4    -1.7     75.6
AVG. MINIMUM    54.7               55.2    -0.5     56.0
MEAN            65.2               66.3    -1.1     65.8
DAYS MAX >= 90     0                1.5    -1.5        4
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       12.99   2011
 MINIMUM        0.12   1943
TOTALS          1.30               4.84   -3.54     4.03
DAILY AVG.      0.04               0.16   -0.12     0.13
DAYS >= .01        8                9.6    -1.6       14
DAYS >= .10        5                6.5    -1.5        9
DAYS >= .50        0                2.9    -2.9        3
DAYS >= 1.00       0                1.5    -1.5        0
GREATEST
 24 HR. TOTAL   0.42   09/07 TO 09/07               0.89

SNOWFALL (INCHES)
RECORDS
 TOTAL           0.0   MM
 24 HR TOTAL      MM
TOTALS           0.0                0.0     0.0      0.0
SINCE 7/1        0.0                0.0     0.0       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL     0.0                                  MM

DEGREE DAYS
HEATING TOTAL     39                 69     -30       81
 SINCE 7/1        48                 74     -26       MM
COOLING TOTAL     55                108     -53      112
 SINCE 1/1       991                968      23       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.7
HIGHEST WIND SPEED/DIRECTION    24/290    DATE  09/07
HIGHEST GUST SPEED/DIRECTION    44/240    DATE  09/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.39
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       3
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HEAVY SNOW                 0
SNOW                      0     LIGHT SNOW                 0
SLEET                     0     FOG                       10
FOG W/VIS <= 1/4 MILE     0     HAZE                       1

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$