771  
CDUS43 KLOT 050637  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
137 AM CDT SAT APR 05 2025  
   
...............................  
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR APRIL 4 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1928 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 50 1:51 PM 80 1929 55 -5 43  
MINIMUM 42 6:05 AM 16 1975 38 4 38  
AVERAGE 46 46 0 41  
 
PRECIPITATION (IN)  
YESTERDAY 0.18 1.90 1947 0.09 0.09 0.05  
MONTH TO DATE 1.86 0.35 1.51 0.87  
SINCE MAR 1 5.25 2.23 3.02 4.87  
SINCE JAN 1 6.61 5.17 1.44 7.85  
 
DEGREE DAYS  
HEATING  
YESTERDAY 19 19 0 24  
MONTH TO DATE 66 77 -11 83  
SINCE MAR 1 655 865 -210 685  
SINCE JUL 1 4593 5188 -595 4234  
 
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 18 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 10.4  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 10:00 PM  
LOWEST 54 8:00 AM  
AVERAGE 72  
   
......................................................  
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 56 85 1988  
MINIMUM TEMPERATURE (F) 38 18 1979  
 
SUNRISE AND SUNSET  
APRIL 5 2025.........SUNRISE 6:27 AM CDT SUNSET 7:21 PM CDT  
APRIL 6 2025.........SUNRISE 6:25 AM CDT SUNSET 7:22 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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