371  
CDUS43 KLOT 310634  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT SUN MAR 31 2024  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 30 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 61 11:06 AM 79 1986 53 8 57  
1998  
MINIMUM 40 11:59 PM 12 1964 35 5 27  
1969  
AVERAGE 51 44 7 42  
 
PRECIPITATION (IN)  
YESTERDAY 0.40 1.84 2017 0.09 0.31 0.00  
MONTH TO DATE 3.33 2.36 0.97 2.61  
SINCE MAR 1 3.33 2.36 0.97 2.61  
SINCE JAN 1 7.48 6.32 1.16 9.04  
 
SNOWFALL (IN)  
YESTERDAY 0.0 7.8 1926 0.1 -0.1 0.0  
MONTH TO DATE 1.0 5.4 -4.4 1.8  
SINCE MAR 1 1.0 5.4 -4.4 1.8  
SINCE JUL 1 22.2 37.0 -14.8 19.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 14 21 -7 23  
MONTH TO DATE 623 787 -164 797  
SINCE MAR 1 623 787 -164 797  
SINCE JUL 1 4311 5256 -945 4832  
 
COOLING  
YESTERDAY 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 17 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 8.8  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 7:00 AM  
LOWEST 67 11:00 AM  
AVERAGE 82  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 53 87 1981  
MINIMUM TEMPERATURE (F) 35 12 1923  
1969  
 
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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