992  
CDUS41 KPHI 170559  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
159 AM EDT WED MAY 17 2023  
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR MAY 16 2023
 
 
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)  
YESTERDAY  
MAXIMUM 79 4:05 PM 89 1951 74 5 77  
1998  
MINIMUM 41 5:02 AM 37 1939 51 -10 54  
2016  
AVERAGE 60 62 -2 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.90 2014 0.12 -0.12 0.04  
MONTH TO DATE 0.19 1.83 -1.64 3.21  
SINCE MAR 1 8.97 9.13 -0.16 13.15  
SINCE JAN 1 14.09 15.20 -1.11 19.53  
 
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 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  
YESTERDAY 5 5 0 0  
MONTH TO DATE 129 100 29 103  
SINCE MAR 1 1224 1258 -34 1287  
SINCE JUL 1 4929 5224 -295 5174  
 
COOLING  
YESTERDAY 0 2 -2 1  
MONTH TO DATE 4 20 -16 12  
SINCE MAR 1 17 28 -11 12  
SINCE JAN 1 17 28 -11 12    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 8.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 6:00 AM  
LOWEST 23 11:00 AM  
AVERAGE 55  
   
......................................................
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 92 1951  
MINIMUM TEMPERATURE (F) 51 32 1956  
 
SUNRISE AND SUNSET  
MAY 17 2023...........SUNRISE 5:43 AM EDT SUNSET 8:14 PM EDT  
MAY 18 2023...........SUNRISE 5:42 AM EDT SUNSET 8:15 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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