534  
CDUS43 KLOT 270643  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1243 AM CST SAT JAN 27 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 26 2024  
 
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)  
YESTERDAY  
MAXIMUM 40 3:42 PM 62 1944 31 9 32  
MINIMUM 37 11:59 PM -16 1897 18 19 15  
AVERAGE 39 25 14 24  
 
PRECIPITATION (IN)  
YESTERDAY 0.38 1.66 1967 0.06 0.32 0.04  
MONTH TO DATE 3.45 1.71 1.74 2.35  
SINCE DEC 1 6.42 3.82 2.60 4.51  
SINCE JAN 1 3.45 1.71 1.74 2.35  
 
SNOWFALL (IN)  
YESTERDAY 0.0 16.4 1967 0.4 -0.4 0.8  
MONTH TO DATE 16.1 9.3 6.8 6.3  
SINCE DEC 1 17.3 16.9 0.4 9.5  
SINCE JUL 1 20.0 18.9 1.1 10.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 26 40 -14 41  
MONTH TO DATE 1054 1028 26 773  
SINCE DEC 1 1852 2097 -245 1874  
SINCE JUL 1 2816 3248 -432 2939  
 
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 16 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 5.9  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1:00 AM  
LOWEST 92 4:00 AM  
AVERAGE 96  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 62 1916  
MINIMUM TEMPERATURE (F) 18 -10 1955  
 
SUNRISE AND SUNSET  
JANUARY 27 2024.......SUNRISE 7:09 AM CST SUNSET 5:00 PM CST  
JANUARY 28 2024.......SUNRISE 7:09 AM CST SUNSET 5:01 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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