567  
CDUS41 KPHI 100615  
CLIABE  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
115 AM EST WED JAN 10 2024  
   
...............................
 
 
   
..THE ALLENTOWN PA CLIMATE SUMMARY FOR JANUARY 9 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1922 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 58 11:57 PM 65 1930 39 19 41  
1998  
MINIMUM 24 1:55 AM -9 1942 22 2 30  
AVERAGE 41 30 11 36  
 
PRECIPITATION (IN)  
YESTERDAY 2.20R 1.27 1964 0.11 2.09 T  
MONTH TO DATE 3.36 0.95 2.41 1.14  
SINCE DEC 1 11.98 4.81 7.17 5.57  
SINCE JAN 1 3.36 0.95 2.41 1.14  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.0 1974 0.3 -0.3 T  
MONTH TO DATE 5.8 2.0 3.8 T  
SINCE DEC 1 5.8 6.6 -0.8 1.4  
SINCE JUL 1 5.8 7.7 -1.9 1.4  
SNOW DEPTH 3  
 
DEGREE DAYS  
HEATING  
YESTERDAY 24 35 -11 29  
MONTH TO DATE 284 307 -23 195  
SINCE DEC 1 1074 1239 -165 1184  
SINCE JUL 1 2161 2278 -117 2285  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 11.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 9:00 PM  
LOWEST 75 9:00 AM  
AVERAGE 86  
   
......................................................
 
 
THE ALLENTOWN PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 38 63 2016  
MINIMUM TEMPERATURE (F) 22 -6 1942  
 
SUNRISE AND SUNSET  
JANUARY 10 2024.......SUNRISE 7:25 AM EST SUNSET 4:53 PM EST  
JANUARY 11 2024.......SUNRISE 7:25 AM EST SUNSET 4:54 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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