111  
CDUS41 KPHI 312127  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
527 PM EDT WED MAY 31 2023  
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR MAY 31 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1922 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 82 3:36 PM 95 1939 77 5 92  
MINIMUM 42 5:07 AM 37 1996 55 -13 64  
AVERAGE 62 66 -4 78  
 
PRECIPITATION (IN)  
TODAY 0.00 3.23 1972 0.13 -0.13 0.00  
MONTH TO DATE 0.24 3.65 -3.41 5.27  
SINCE MAR 1 9.02 10.95 -1.93 15.21  
SINCE JAN 1 14.14 17.02 -2.88 21.59  
 
SNOWFALL (IN)  
TODAY 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 1.2 6.8 -5.6 4.7  
SINCE JUL 1 6.3 33.1 -26.8 19.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 3 2 1 0  
MONTH TO DATE 197 151 46 122  
SINCE MAR 1 1292 1309 -17 1306  
SINCE JUL 1 4997 5275 -278 5193  
 
COOLING  
TODAY 0 4 -4 13  
MONTH TO DATE 7 60 -53 60  
SINCE MAR 1 20 68 -48 60  
SINCE JAN 1 20 68 -48 60    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 3.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 5:00 AM  
LOWEST 21 4:00 PM  
AVERAGE 54  
   
......................................................
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 95 1937  
MINIMUM TEMPERATURE (F) 56 39 1945  
 
SUNRISE AND SUNSET  
MAY 31 2023...........SUNRISE 5:34 AM EDT SUNSET 8:26 PM EDT  
JUNE 1 2023..........SUNRISE 5:33 AM EDT SUNSET 8:26 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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