004  
CDUS41 KPHI 240552  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
1252 AM EST MON DEC 24 2018  
 
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 23 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 44 314 PM 65 2015 38 6 49  
MINIMUM 37 440 PM -3 1960 22 15 38  
AVERAGE 41 30 11 44  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 1.56 1923 0.10 -0.07 0.92  
MONTH TO DATE 4.03 2.78 1.25 1.62  
SINCE DEC 1 4.03 2.78 1.25 1.62  
SINCE JAN 1 64.75 44.55 20.20 49.92  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.2 1963 0.2 -0.2 0.0  
MONTH TO DATE T 3.4 -3.4 7.9  
SINCE DEC 1 T 3.4 -3.4 7.9  
SINCE JUL 1 8.1 4.1 4.0 7.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 24 35 -11 21  
MONTH TO DATE 637 728 -91 684  
SINCE DEC 1 637 728 -91 684  
SINCE JUL 1 1700 1908 -208 1597  
 
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 22 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 6.3  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 1000 PM  
LOWEST 49 100 PM  
AVERAGE 60  
   
......................................................
 
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 38 71 2015  
MINIMUM TEMPERATURE (F) 22 -5 1989  
 
 
SUNRISE AND SUNSET  
DECEMBER 24 2018......SUNRISE 723 AM EST SUNSET 439 PM EST  
DECEMBER 25 2018......SUNRISE 724 AM EST SUNSET 440 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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