807  
CDUS43 KLOT 170644  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
144 AM CDT SUN MAR 17 2024  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 16 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 58 1:53 PM 82 2012 47 11 50  
MINIMUM 40 3:10 AM -1 1900 31 9 41  
AVERAGE 49 39 10 46  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.64 1876 0.07 -0.07 0.21  
MONTH TO DATE 2.16 1.22 0.94 1.36  
SINCE MAR 1 2.16 1.22 0.94 1.36  
SINCE JAN 1 6.31 5.18 1.13 7.79  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.0 1960 0.1 -0.1 0.0  
MONTH TO DATE 0.0 3.7 -3.7 1.8  
SINCE MAR 1 0.0 3.7 -3.7 1.8  
SINCE JUL 1 21.2 35.3 -14.1 19.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 16 26 -10 19  
MONTH TO DATE 272 458 -186 424  
SINCE MAR 1 272 458 -186 424  
SINCE JUL 1 3960 4927 -967 4459  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 47 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 16.1  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 12:00 AM  
LOWEST 37 3:00 PM  
AVERAGE 58  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 48 82 2012  
MINIMUM TEMPERATURE (F) 31 -1 1900  
 
SUNRISE AND SUNSET  
MARCH 17 2024.........SUNRISE 6:59 AM CDT SUNSET 7:01 PM CDT  
MARCH 18 2024.........SUNRISE 6:57 AM CDT SUNSET 7:02 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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