179  
CDUS41 KPHI 210601  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
201 AM EDT TUE MAY 21 2019  
 
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR MAY 20 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 86 359 PM 92 1996 73 13 80  
1962  
MINIMUM 66 1128 PM 32 2002 50 16 58  
AVERAGE 76 61 15 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.26 1.92 1984 0.14 0.12 0.03  
MONTH TO DATE 7.58 2.58 5.00 3.59  
SINCE MAR 1 17.05 9.53 7.52 10.51  
SINCE JAN 1 24.67 15.26 9.41 19.18  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0  
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 0 5 -5 0  
MONTH TO DATE 87 153 -66 56  
SINCE MAR 1 1144 1414 -270 1430  
SINCE JUL 1 4986 5723 -737 5253  
 
COOLING  
YESTERDAY 11 1 10 4  
MONTH TO DATE 33 14 19 37  
SINCE MAR 1 45 19 26 41  
SINCE JAN 1 45 19 26 41    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 10.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 500 AM  
LOWEST 37 600 PM  
AVERAGE 65  
   
......................................................
 
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 92 1934  
MINIMUM TEMPERATURE (F) 50 32 2002  
 
 
SUNRISE AND SUNSET  
MAY 21 2019...........SUNRISE 540 AM EDT SUNSET 817 PM EDT  
MAY 22 2019...........SUNRISE 539 AM EDT SUNSET 818 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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