563  
CDUS41 KPHI 180553  
CLIRDG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
1252 AM EST TUE DEC 18 2018  
 
   
...............................
 
 
   
..THE READING PA CLIMATE SUMMARY FOR DECEMBER 17 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1869 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 47 116 PM 62 2000 41 6 39  
1971  
MINIMUM 37 1224 AM -1 1916 26 11 28  
AVERAGE 42 33 9 34  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.40 2000 0.10 -0.10 0.00  
MONTH TO DATE 1.35 1.91 -0.56 0.60  
SINCE DEC 1 1.35 1.91 -0.56 0.60  
SINCE JAN 1 64.92 41.89 23.03 42.37  
 
DEGREE DAYS  
HEATING  
YESTERDAY 23 32 -9 31  
MONTH TO DATE 496 498 -2 527  
SINCE DEC 1 496 498 -2 527  
SINCE JUL 1 1533 1565 -32 1431  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1302 896 406 1086    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 13.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 200 AM  
LOWEST 53 200 PM  
AVERAGE 77  
   
......................................................
 
 
 
THE READING PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 41 64 2006  
MINIMUM TEMPERATURE (F) 25 -3 1916  
 
 
SUNRISE AND SUNSET  
DECEMBER 18 2018......SUNRISE 722 AM EST SUNSET 439 PM EST  
DECEMBER 19 2018......SUNRISE 722 AM EST SUNSET 440 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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