751  
CDUS43 KLOT 190634  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT FRI APR 19 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 18 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 11:31 AM 89 2002 60 -2 58  
MINIMUM 47 4:48 AM 23 1875 41 6 33  
1983  
AVERAGE 53 50 3 46  
 
PRECIPITATION (IN)  
YESTERDAY 0.10 3.83 1975 0.14 -0.04 0.00  
MONTH TO DATE 2.04 2.08 -0.04 1.38  
SINCE MAR 1 5.63 4.53 1.10 5.18  
SINCE JAN 1 9.78 8.49 1.29 11.61  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.6 2011 0.0 0.0 0.0  
MONTH TO DATE T 1.0 -1.0 0.4  
SINCE MAR 1 1.0 6.5 -5.5 2.2  
SINCE JUL 1 22.2 38.1 -15.9 20.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 12 15 -3 19  
MONTH TO DATE 227 319 -92 216  
SINCE MAR 1 869 1127 -258 1018  
SINCE JUL 1 4557 5596 -1039 5053  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 3 0 3 25  
SINCE MAR 1 3 2 1 25  
SINCE JAN 1 3 2 1 25    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 7.3  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 9:00 PM  
LOWEST 55 11:00 AM  
AVERAGE 73  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 86 1985  
MINIMUM TEMPERATURE (F) 41 22 1983  
 
SUNRISE AND SUNSET  
APRIL 19 2024.........SUNRISE 6:04 AM CDT SUNSET 7:38 PM CDT  
APRIL 20 2024.........SUNRISE 6:03 AM CDT SUNSET 7:39 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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