797  
CDUS43 KLOT 172132  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
432 PM CDT SUN MAR 17 2024  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 17 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 41 12:32 AM 82 2012 48 -7 47  
MINIMUM 34 6:54 AM -1 1900 31 3 21  
AVERAGE 38 39 -1 34  
 
PRECIPITATION (IN)  
TODAY T 1.42 1965 0.08 -0.08 0.04  
MONTH TO DATE 2.16 1.30 0.86 1.40  
SINCE MAR 1 2.16 1.30 0.86 1.40  
SINCE JAN 1 6.31 5.26 1.05 7.83  
 
SNOWFALL (IN)  
TODAY T 4.1 1984 0.2 -0.2 T  
MONTH TO DATE T 3.9 -3.9 1.8  
SINCE MAR 1 T 3.9 -3.9 1.8  
SINCE JUL 1 21.2 35.5 -14.3 19.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 27 26 1 31  
MONTH TO DATE 299 484 -185 455  
SINCE MAR 1 299 484 -185 455  
SINCE JUL 1 3987 4953 -966 4490  
 
COOLING  
TODAY 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 20 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 13.2  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT SNOW  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 64 8:00 AM  
LOWEST 38 1:00 PM  
AVERAGE 51  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 48 81 2012  
MINIMUM TEMPERATURE (F) 32 3 1923  
 
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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