172  
CDUS43 KLOT 090631  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
131 AM CDT TUE APR 09 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 8 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 71 5:12 PM 80 1931 56 15 63  
MINIMUM 47 3:43 AM 20 1914 38 9 36  
1972  
AVERAGE 59 47 12 50  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.35 1999 0.12 -0.12 0.00  
MONTH TO DATE 1.58 0.87 0.71 1.20  
SINCE MAR 1 5.17 3.32 1.85 5.00  
SINCE JAN 1 9.32 7.28 2.04 11.43  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.5 1938 0.1 -0.1 0.0  
MONTH TO DATE T 0.6 -0.6 T  
SINCE MAR 1 1.0 6.1 -5.1 1.8  
SINCE JUL 1 22.2 37.7 -15.5 19.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 18 -12 15  
MONTH TO DATE 166 156 10 137  
SINCE MAR 1 808 964 -156 939  
SINCE JUL 1 4496 5433 -937 4974  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 2 -2 0  
SINCE JAN 1 0 2 -2 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 11.2  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 5:00 AM  
LOWEST 36 4:00 PM  
AVERAGE 61  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 56 80 1887  
MINIMUM TEMPERATURE (F) 38 20 1989  
 
SUNRISE AND SUNSET  
APRIL 9 2024.........SUNRISE 6:20 AM CDT SUNSET 7:27 PM CDT  
APRIL 10 2024.........SUNRISE 6:18 AM CDT SUNSET 7:28 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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