079  
CDUS41 KPHI 190559  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
1257 AM EST WED DEC 19 2018  
 
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 18 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 40 1235 AM 62 2006 40 0 47  
MINIMUM 22 1139 PM 5 1945 23 -1 34  
AVERAGE 31 31 0 41  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.17 1915 0.10 -0.10 0.00  
MONTH TO DATE 2.28 2.25 0.03 0.70  
SINCE DEC 1 2.28 2.25 0.03 0.70  
SINCE JAN 1 63.00 44.02 18.98 49.00  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.8 1932 0.1 -0.1 0.0  
MONTH TO DATE T 2.5 -2.5 7.9  
SINCE DEC 1 T 2.5 -2.5 7.9  
SINCE JUL 1 8.1 3.2 4.9 7.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 34 34 0 24  
MONTH TO DATE 530 556 -26 565  
SINCE DEC 1 530 556 -26 565  
SINCE JUL 1 1593 1736 -143 1478  
 
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 30 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 11.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 58 1000 PM  
LOWEST 37 200 PM  
AVERAGE 48  
   
......................................................
 
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 39 59 1957  
MINIMUM TEMPERATURE (F) 23 0 1951  
 
 
SUNRISE AND SUNSET  
DECEMBER 19 2018......SUNRISE 721 AM EST SUNSET 437 PM EST  
DECEMBER 20 2018......SUNRISE 721 AM EST SUNSET 437 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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