668  
CDUS41 KPHI 100554  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
151 AM EDT FRI MAY 10 2019  
 
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR MAY 9 2019
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1922 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 60 257 PM 92 1936 70 -10 80  
MINIMUM 55 906 PM 31 1956 46 9 47  
1947  
AVERAGE 58 58 0 64  
 
PRECIPITATION (IN)  
YESTERDAY T 1.15 1923 0.13 -0.13 0.00  
MONTH TO DATE 3.77 1.11 2.66 0.32  
SINCE MAR 1 13.24 8.06 5.18 7.24  
SINCE JAN 1 20.86 13.79 7.07 15.91  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1977 0.0 0.0 0.0  
1966  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 11.5 5.9 5.6 24.6  
SINCE JUL 1 32.1 32.9 -0.8 49.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 8 -1 1  
MONTH TO DATE 29 81 -52 18  
SINCE MAR 1 1086 1342 -256 1392  
SINCE JUL 1 4928 5651 -723 5215  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 7 3 4 21  
SINCE MAR 1 19 8 11 25  
SINCE JAN 1 19 8 11 25    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 9.8  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77 800 AM  
LOWEST 57 1100 AM  
AVERAGE 67  
   
......................................................
 
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 91 1979  
MINIMUM TEMPERATURE (F) 46 28 1947  
 
 
SUNRISE AND SUNSET  
MAY 10 2019...........SUNRISE 550 AM EDT SUNSET 807 PM EDT  
MAY 11 2019...........SUNRISE 549 AM EDT SUNSET 808 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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