682  
CDUS41 KPHI 172133  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
432 PM EST MON DEC 17 2018  
 
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 17 2018
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 46 120 PM 63 2000 40 6 38  
MINIMUM 37 204 AM -2 1951 24 13 30  
AVERAGE 42 32 10 34  
 
PRECIPITATION (IN)  
TODAY 0.00 2.16 2000 0.11 -0.11 0.00  
MONTH TO DATE 2.28 2.15 0.13 0.70  
SINCE DEC 1 2.28 2.15 0.13 0.70  
SINCE JAN 1 63.00 43.92 19.08 49.00  
 
SNOWFALL (IN)  
TODAY 0.0 3.0 1919 0.2 -0.2 0.0  
MONTH TO DATE T 2.4 -2.4 7.9  
SINCE DEC 1 T 2.4 -2.4 7.9  
SINCE JUL 1 8.1 3.1 5.0 7.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 23 33 -10 31  
MONTH TO DATE 496 522 -26 541  
SINCE DEC 1 496 522 -26 541  
SINCE JUL 1 1559 1702 -143 1454  
 
COOLING  
TODAY 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 24 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 9.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 800 AM  
LOWEST 49 300 PM  
AVERAGE 67  
   
......................................................
 
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 40 62 2006  
MINIMUM TEMPERATURE (F) 23 5 1945  
 
 
SUNRISE AND SUNSET  
DECEMBER 17 2018......SUNRISE 720 AM EST SUNSET 436 PM EST  
DECEMBER 18 2018......SUNRISE 720 AM EST SUNSET 436 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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