223  
CDUS41 KPHI 152137  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
436 PM EST SAT DEC 15 2018  
 
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 15 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 52 319 PM 66 2015 40 12 26  
MINIMUM 44 544 AM 6 2005 24 20 10  
1960  
AVERAGE 48 32 16 18  
 
PRECIPITATION (IN)  
TODAY 0.16 0.89 1948 0.11 0.05 0.07  
MONTH TO DATE 1.07 1.92 -0.85 0.70  
SINCE DEC 1 1.07 1.92 -0.85 0.70  
SINCE JAN 1 61.79 43.69 18.10 49.00  
 
SNOWFALL (IN)  
TODAY 0.0 4.0 1950 0.2 -0.2 1.1  
MONTH TO DATE T 2.0 -2.0 7.9  
SINCE DEC 1 T 2.0 -2.0 7.9  
SINCE JUL 1 8.1 2.7 5.4 7.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 17 33 -16 47  
MONTH TO DATE 449 456 -7 472  
SINCE DEC 1 449 456 -7 472  
SINCE JUL 1 1512 1636 -124 1385  
 
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 17 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 4.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 600 AM  
LOWEST 71 400 PM  
AVERAGE 82  
   
......................................................
 
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 40 60 1971  
MINIMUM TEMPERATURE (F) 24 1 1951  
 
 
SUNRISE AND SUNSET  
DECEMBER 15 2018......SUNRISE 718 AM EST SUNSET 435 PM EST  
DECEMBER 16 2018......SUNRISE 719 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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