674  
CDUS41 KPHI 090555  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
154 AM EDT SUN SEP 9 2018  
 
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR SEPTEMBER 8 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 70 126 AM 97 1939 78 -8 71  
MINIMUM 57 1159 PM 42 1962 56 1 50  
AVERAGE 64 67 -3 61  
 
PRECIPITATION (IN)  
YESTERDAY T 4.86 1987 0.13 -0.13 0.02  
MONTH TO DATE 0.04 1.04 -1.00 3.17  
SINCE SEP 1 0.04 1.04 -1.00 3.17  
SINCE JAN 1 41.13 30.81 10.32 42.31  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2002 0.0 0.0 0.0  
2001  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 1 2 -1 4  
MONTH TO DATE 1 9 -8 22  
SINCE SEP 1 1 9 -8 22  
SINCE JUL 1 1 20 -19 26  
 
COOLING  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 102 33 69 9  
SINCE SEP 1 102 33 69 9  
SINCE JAN 1 1141 712 429 817    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 8.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 1200 AM  
LOWEST 59 500 AM  
AVERAGE 72  
   
......................................................
 
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 95 2015  
MINIMUM TEMPERATURE (F) 56 42 1986  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 9 2018.....SUNRISE 637 AM EDT SUNSET 721 PM EDT  
SEPTEMBER 10 2018.....SUNRISE 638 AM EDT SUNSET 719 PM EDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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