564  
CDUS43 KLOT 012234  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CST WED JAN 01 2025  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 1 2025  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 34 12:23 AM 65 1876 33 1 32  
MINIMUM 29 3:59 PM -10 1969 21 8 27  
AVERAGE 32 27 5 30  
 
PRECIPITATION (IN)  
TODAY T 1.33 1948 0.07 -0.07 T  
MONTH TO DATE T 0.07 -0.07 T  
SINCE DEC 1 1.93 2.18 -0.25 2.97  
SINCE JAN 1 T 0.07 -0.07 T  
 
SNOWFALL (IN)  
TODAY T 5.0 1918 0.3 -0.3 T  
MONTH TO DATE T 0.3 -0.3 T  
SINCE DEC 1 2.4 7.9 -5.5 1.2  
SINCE JUL 1 5.3 9.9 -4.6 3.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 33 38 -5 35  
MONTH TO DATE 33 38 -5 35  
SINCE DEC 1 1046 1107 -61 833  
SINCE JUL 1 1813 2258 -445 1797  
 
COOLING  
TODAY 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 22 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 13.9  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 75 12:00 AM  
LOWEST 60 7:00 AM  
AVERAGE 68  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 33 61 2004  
MINIMUM TEMPERATURE (F) 21 -16 1879  
 
SUNRISE AND SUNSET  
JANUARY 1 2025.......SUNRISE 7:20 AM CST SUNSET 4:31 PM CST  
JANUARY 2 2025.......SUNRISE 7:20 AM CST SUNSET 4:32 PM CST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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