938  
CDUS43 KLOT 012135  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
435 PM CDT TUE APR 01 2025  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 1 2025  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 43 1:27 PM 83 2010 53 -10 48  
MINIMUM 33 5:18 AM 17 1881 36 -3 42  
AVERAGE 38 44 -6 45  
 
PRECIPITATION (IN)  
TODAY 0.00 1.58 1967 0.10 -0.10 0.44  
MONTH TO DATE 0.00 0.10 -0.10 0.44  
SINCE MAR 1 2.99 2.55 0.44 4.03  
SINCE JAN 1 5.49 6.51 -1.02 8.18  
 
SNOWFALL (IN)  
TODAY 0.0 8.2 1970 0.1 -0.1 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE MAR 1 2.8 5.6 -2.8 1.0  
SINCE JUL 1 17.6 37.2 -19.6 22.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 27 21 6 20  
MONTH TO DATE 27 21 6 20  
SINCE MAR 1 657 829 -172 662  
SINCE JUL 1 4792 5298 -506 4350  
 
COOLING  
TODAY 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 16 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 10.7  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 73 12:00 AM  
LOWEST 41 12:00 PM  
AVERAGE 57  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 54 82 1963  
MINIMUM TEMPERATURE (F) 36 18 1896  
1899  
 
SUNRISE AND SUNSET  
APRIL 1 2025.........SUNRISE 6:34 AM CDT SUNSET 7:18 PM CDT  
APRIL 2 2025.........SUNRISE 6:32 AM CDT SUNSET 7:19 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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