454  
CDUS43 KLOT 230631  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1231 AM CST FRI FEB 23 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 22 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 61 3:42 PM 68 1922 38 23 36  
2017  
MINIMUM 42 6:53 AM -14 1873 24 18 33  
AVERAGE 52 31 21 35  
 
PRECIPITATION (IN)  
YESTERDAY T 1.20 2023 0.07 -0.07 1.20  
MONTH TO DATE 0.10 1.47 -1.37 2.76  
SINCE DEC 1 6.57 5.57 1.00 7.52  
SINCE JAN 1 3.60 3.46 0.14 5.36  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.6 1950 0.3 -0.3 0.0  
MONTH TO DATE T 8.8 -8.8 2.0  
SINCE DEC 1 17.3 27.7 -10.4 15.1  
SINCE JUL 1 20.0 29.7 -9.7 16.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 34 -21 30  
MONTH TO DATE 580 820 -240 695  
SINCE DEC 1 2571 3123 -552 2801  
SINCE JUL 1 3535 4274 -739 3866  
 
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 13 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76 7:00 AM  
LOWEST 29 4:00 PM  
AVERAGE 53  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 39 66 2000  
MINIMUM TEMPERATURE (F) 24 -18 1873  
 
SUNRISE AND SUNSET  
FEBRUARY 23 2024......SUNRISE 6:37 AM CST SUNSET 5:34 PM CST  
FEBRUARY 24 2024......SUNRISE 6:35 AM CST SUNSET 5:35 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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