356  
CDUS41 KPHI 310557  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
1254 AM EST MON DEC 31 2018  
 
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 30 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1922 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 42 256 PM 64 1984 37 5 24  
MINIMUM 27 1156 PM -2 1933 21 6 14  
AVERAGE 35 29 6 19  
 
PRECIPITATION (IN)  
YESTERDAY T 1.59 1948 0.09 -0.09 0.04  
MONTH TO DATE 5.20 3.49 1.71 1.88  
SINCE DEC 1 5.20 3.49 1.71 1.88  
SINCE JAN 1 65.92 45.26 20.66 50.18  
 
SNOWFALL (IN)  
YESTERDAY T 5.7 2000 0.3 -0.3 1.2  
MONTH TO DATE T 5.0 -5.0 9.6  
SINCE DEC 1 T 5.0 -5.0 9.6  
SINCE JUL 1 8.1 5.7 2.4 9.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 30 36 -6 46  
MONTH TO DATE 823 978 -155 976  
SINCE DEC 1 823 978 -155 976  
SINCE JUL 1 1886 2158 -272 1889  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1287 757 530 1004    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 4.3  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 1000 PM  
LOWEST 57 300 PM  
AVERAGE 71  
   
......................................................
 
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 37 61 1972  
1965  
1932  
MINIMUM TEMPERATURE (F) 21 -6 1963  
 
 
SUNRISE AND SUNSET  
DECEMBER 31 2018......SUNRISE 725 AM EST SUNSET 444 PM EST  
JANUARY 1 2019.......SUNRISE 726 AM EST SUNSET 445 PM EST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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