030  
CDUS41 KPHI 230553  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
1252 AM EST SUN DEC 23 2018  
 
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 22 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 57 1212 AM 65 2013 38 19 46  
MINIMUM 38 1144 PM -2 1944 22 16 33  
AVERAGE 48 30 18 40  
 
PRECIPITATION (IN)  
YESTERDAY 0.10 1.36 1983 0.11 -0.01 0.00  
MONTH TO DATE 4.00 2.68 1.32 0.70  
SINCE DEC 1 4.00 2.68 1.32 0.70  
SINCE JAN 1 64.72 44.45 20.27 49.00  
 
SNOWFALL (IN)  
YESTERDAY 0.0 2.3 1969 0.2 -0.2 0.0  
MONTH TO DATE T 3.2 -3.2 7.9  
SINCE DEC 1 T 3.2 -3.2 7.9  
SINCE JUL 1 8.1 3.9 4.2 7.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 17 35 -18 25  
MONTH TO DATE 613 693 -80 663  
SINCE DEC 1 613 693 -80 663  
SINCE JUL 1 1676 1873 -197 1576  
 
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 28 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 14.0  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 71 400 AM  
LOWEST 50 1100 PM  
AVERAGE 61  
   
......................................................
 
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 38 65 2015  
MINIMUM TEMPERATURE (F) 22 -3 1960  
 
 
SUNRISE AND SUNSET  
DECEMBER 23 2018......SUNRISE 723 AM EST SUNSET 439 PM EST  
DECEMBER 24 2018......SUNRISE 723 AM EST SUNSET 439 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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