037  
CDUS43 KLOT 312133  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT SUN MAR 31 2024  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 31 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 54 12:38 PM 87 1981 53 1 70  
MINIMUM 38 5:39 AM 12 1923 35 3 49  
1969  
AVERAGE 46 44 2 60  
 
PRECIPITATION (IN)  
TODAY 0.00 3.12 1929 0.09 -0.09 1.19  
MONTH TO DATE 3.33 2.45 0.88 3.80  
SINCE MAR 1 3.33 2.45 0.88 3.80  
SINCE JAN 1 7.48 6.41 1.07 10.23  
 
SNOWFALL (IN)  
TODAY 0.0 4.8 1926 0.1 -0.1 T  
MONTH TO DATE 1.0 5.5 -4.5 1.8  
SINCE MAR 1 1.0 5.5 -4.5 1.8  
SINCE JUL 1 22.2 37.1 -14.9 19.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 19 21 -2 5  
MONTH TO DATE 642 808 -166 802  
SINCE MAR 1 642 808 -166 802  
SINCE JUL 1 4330 5277 -947 4837  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 2 -2 0  
SINCE MAR 1 0 2 -2 0  
SINCE JAN 1 0 2 -2 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 9.1  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 12:00 AM  
LOWEST 57 12:00 PM  
AVERAGE 70  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 53 83 2010  
MINIMUM TEMPERATURE (F) 36 17 1881  
 
SUNRISE AND SUNSET  
MARCH 31 2024.........SUNRISE 6:35 AM CDT SUNSET 7:17 PM CDT  
APRIL 1 2024.........SUNRISE 6:33 AM CDT SUNSET 7:18 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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