233  
CDUS43 KLOT 130633  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
133 AM CDT SAT APR 13 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 12 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 64 12:09 PM 86 1971 58 6 82  
1977  
MINIMUM 49 11:59 PM 21 1939 39 10 57  
1957  
AVERAGE 57 48 9 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.06 1.16 1909 0.12 -0.06 0.00  
1952  
MONTH TO DATE 1.65 1.33 0.32 1.20  
SINCE MAR 1 5.24 3.78 1.46 5.00  
SINCE JAN 1 9.39 7.74 1.65 11.43  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.7 1973 0.1 -0.1 0.0  
MONTH TO DATE T 0.8 -0.8 T  
SINCE MAR 1 1.0 6.3 -5.3 1.8  
SINCE JUL 1 22.2 37.9 -15.7 19.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 17 -9 0  
MONTH TO DATE 201 226 -25 152  
SINCE MAR 1 843 1034 -191 954  
SINCE JUL 1 4531 5503 -972 4989  
 
COOLING  
YESTERDAY 0 0 0 5  
MONTH TO DATE 0 0 0 6  
SINCE MAR 1 0 2 -2 6  
SINCE JAN 1 0 2 -2 6    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 13.5  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 2:00 AM  
LOWEST 39 1:00 PM  
AVERAGE 65  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 58 83 2023  
MINIMUM TEMPERATURE (F) 39 21 1950  
 
SUNRISE AND SUNSET  
APRIL 13 2024.........SUNRISE 6:14 AM CDT SUNSET 7:31 PM CDT  
APRIL 14 2024.........SUNRISE 6:12 AM CDT SUNSET 7:32 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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