212  
CDUS43 KLOT 182133  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT MON MAR 18 2024  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 18 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 36 2:39 PM 81 2012 48 -12 25  
MINIMUM 24 6:12 AM 3 1923 32 -8 12  
AVERAGE 30 40 -10 19  
 
PRECIPITATION (IN)  
TODAY T 1.33 1983 0.08 -0.08 T  
MONTH TO DATE 2.16 1.38 0.78 1.40  
SINCE MAR 1 2.16 1.38 0.78 1.40  
SINCE JAN 1 6.31 5.34 0.97 7.83  
 
SNOWFALL (IN)  
TODAY T 4.5 1971 0.2 -0.2 T  
MONTH TO DATE T 4.1 -4.1 1.8  
SINCE MAR 1 T 4.1 -4.1 1.8  
SINCE JUL 1 21.2 35.7 -14.5 19.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 35 25 10 46  
MONTH TO DATE 337 509 -172 501  
SINCE MAR 1 337 509 -172 501  
SINCE JUL 1 4025 4978 -953 4536  
 
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 (330)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 12.2  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT SNOW  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 61 9:00 AM  
LOWEST 45 3:00 PM  
AVERAGE 53  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 48 78 1921  
2012  
MINIMUM TEMPERATURE (F) 32 0 1923  
 
SUNRISE AND SUNSET  
MARCH 18 2024.........SUNRISE 6:57 AM CDT SUNSET 7:02 PM CDT  
MARCH 19 2024.........SUNRISE 6:56 AM CDT SUNSET 7:03 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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