108  
CDUS43 KLOT 212234  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CST SUN JAN 21 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 21 2024  
 
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 20 3:59 PM 62 1906 31 -11 32  
MINIMUM 1 7:40 AM -22 1984 18 -17 28  
AVERAGE 11 24 -13 30  
 
PRECIPITATION (IN)  
TODAY 0.00 1.49 1916 0.06 -0.06 0.00  
MONTH TO DATE 2.22 1.40 0.82 1.88  
SINCE DEC 1 5.19 3.51 1.68 4.04  
SINCE JAN 1 2.22 1.40 0.82 1.88  
 
SNOWFALL (IN)  
TODAY 0.0 5.0 1958 0.4 -0.4 0.0  
MONTH TO DATE 16.1 7.3 8.8 0.4  
SINCE DEC 1 17.3 14.9 2.4 3.6  
SINCE JUL 1 20.0 16.9 3.1 4.7  
SNOW DEPTH 4  
 
DEGREE DAYS  
HEATING  
TODAY 54 40 14 35  
MONTH TO DATE 904 828 76 593  
SINCE DEC 1 1702 1897 -195 1694  
SINCE JUL 1 2666 3048 -382 2759  
 
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 18 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 7.9  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 8:00 AM  
LOWEST 51 1:00 PM  
AVERAGE 66  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 59 1909  
MINIMUM TEMPERATURE (F) 18 -17 1883  
1936  
 
SUNRISE AND SUNSET  
JANUARY 21 2024.......SUNRISE 7:14 AM CST SUNSET 4:52 PM CST  
JANUARY 22 2024.......SUNRISE 7:13 AM CST SUNSET 4:53 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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