154  
CDUS41 KPHI 112127  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
427 PM EST TUE DEC 11 2018  
 
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR DECEMBER 11 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 39 241 PM 61 1979 42 -3 39  
1952  
MINIMUM 17 551 AM -2 1958 25 -8 27  
AVERAGE 28 34 -6 33  
 
PRECIPITATION (IN)  
TODAY 0.00 2.18 1952 0.13 -0.13 0.00  
MONTH TO DATE 0.79 1.44 -0.65 0.53  
SINCE DEC 1 0.79 1.44 -0.65 0.53  
SINCE JAN 1 61.51 43.21 18.30 48.83  
 
SNOWFALL (IN)  
TODAY 0.0 6.4 1960 0.2 -0.2 0.0  
MONTH TO DATE T 1.4 -1.4 4.9  
SINCE DEC 1 T 1.4 -1.4 4.9  
SINCE JUL 1 8.1 2.1 6.0 4.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 37 32 5 32  
MONTH TO DATE 348 327 21 310  
SINCE DEC 1 348 327 21 310  
SINCE JUL 1 1411 1507 -96 1223  
 
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 14 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 3.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 700 AM  
LOWEST 48 200 PM  
AVERAGE 66  
   
......................................................
 
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 41 63 1931  
MINIMUM TEMPERATURE (F) 25 2 1988  
 
 
SUNRISE AND SUNSET  
DECEMBER 11 2018......SUNRISE 715 AM EST SUNSET 435 PM EST  
DECEMBER 12 2018......SUNRISE 716 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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