055  
CDUS41 KPHI 250559  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
1258 AM EST TUE DEC 25 2018  
 
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 24 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 42 113 PM 71 2015 38 4 42  
MINIMUM 32 1159 PM -5 1989 22 10 33  
AVERAGE 37 30 7 38  
 
PRECIPITATION (IN)  
YESTERDAY 0.11 1.48 2008 0.11 0.00 0.13  
MONTH TO DATE 4.14 2.89 1.25 1.75  
SINCE DEC 1 4.14 2.89 1.25 1.75  
SINCE JAN 1 64.86 44.66 20.20 50.05  
 
SNOWFALL (IN)  
YESTERDAY 0.0 13.5 1912 0.2 -0.2 0.5  
MONTH TO DATE T 3.6 -3.6 8.4  
SINCE DEC 1 T 3.6 -3.6 8.4  
SINCE JUL 1 8.1 4.3 3.8 8.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 28 35 -7 27  
MONTH TO DATE 665 763 -98 711  
SINCE DEC 1 665 763 -98 711  
SINCE JUL 1 1728 1943 -215 1624  
 
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 18 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 7.4  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 400 AM  
LOWEST 51 300 PM  
AVERAGE 72  
   
......................................................
 
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 38 65 1964  
MINIMUM TEMPERATURE (F) 22 -2 1983  
 
 
SUNRISE AND SUNSET  
DECEMBER 25 2018......SUNRISE 724 AM EST SUNSET 440 PM EST  
DECEMBER 26 2018......SUNRISE 724 AM EST SUNSET 441 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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