955  
CDUS41 KPHI 312140  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
437 PM EST MON DEC 31 2018  
 
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 31 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 41 359 PM 61 1972 37 4 18  
1965  
1932  
MINIMUM 25 628 AM -6 1963 21 4 6  
AVERAGE 33 29 4 12  
 
PRECIPITATION (IN)  
TODAY 0.16 0.98 1942 0.09 0.07 0.00  
MONTH TO DATE 5.36 3.58 1.78 1.88  
SINCE DEC 1 5.36 3.58 1.78 1.88  
SINCE JAN 1 66.08 45.35 20.73 50.18  
 
SNOWFALL (IN)  
TODAY 0.0 6.0 1898 0.2 -0.2 0.0  
MONTH TO DATE T 5.2 -5.2 9.6  
SINCE DEC 1 T 5.2 -5.2 9.6  
SINCE JUL 1 8.1 5.9 2.2 9.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 32 36 -4 53  
MONTH TO DATE 855 1014 -159 1029  
SINCE DEC 1 855 1015 -160 1029  
SINCE JUL 1 1918 2195 -277 1942  
 
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 8 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 3.4  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 300 PM  
LOWEST 78 900 AM  
AVERAGE 82  
   
......................................................
 
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 37 62 2005  
MINIMUM TEMPERATURE (F) 20 -3 1968  
 
 
SUNRISE AND SUNSET  
DECEMBER 31 2018......SUNRISE 725 AM EST SUNSET 444 PM EST  
JANUARY 1 2019.......SUNRISE 726 AM EST SUNSET 445 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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