122  
CDUS41 KPHI 130556  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
1255 AM EST THU DEC 13 2018  
 
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 12 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 42 251 PM 63 1931 41 1 42  
MINIMUM 28 828 PM 2 1988 25 3 21  
AVERAGE 35 33 2 32  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.10 1983 0.13 -0.13 T  
MONTH TO DATE 0.79 1.57 -0.78 0.53  
SINCE DEC 1 0.79 1.57 -0.78 0.53  
SINCE JAN 1 61.51 43.34 18.17 48.83  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.9 1960 0.1 -0.1 0.0  
MONTH TO DATE T 1.5 -1.5 4.9  
SINCE DEC 1 T 1.5 -1.5 4.9  
SINCE JUL 1 8.1 2.2 5.9 4.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 30 32 -2 33  
MONTH TO DATE 378 359 19 343  
SINCE DEC 1 378 359 19 343  
SINCE JUL 1 1441 1539 -98 1256  
 
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 12 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 5.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 72 1100 PM  
LOWEST 45 200 PM  
AVERAGE 59  
   
......................................................
 
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 41 68 2015  
MINIMUM TEMPERATURE (F) 25 5 1995  
1988  
1960  
 
 
SUNRISE AND SUNSET  
DECEMBER 13 2018......SUNRISE 717 AM EST SUNSET 435 PM EST  
DECEMBER 14 2018......SUNRISE 718 AM EST SUNSET 435 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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