240  
CDUS43 KLOT 130643  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
143 AM CDT TUE MAY 13 2025  
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR MAY 12 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 81 4:28 PM 95 2022 70 11 84  
MINIMUM 53 4:36 AM 28 1981 51 2 51  
AVERAGE 67 60 7 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 1.92 1935 0.13 -0.12 0.00  
MONTH TO DATE 0.46 1.61 -1.15 2.96  
SINCE MAR 1 7.04 7.06 -0.02 11.44  
SINCE JAN 1 8.40 10.00 -1.60 14.42  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 0  
MONTH TO DATE 92 95 -3 30  
SINCE MAR 1 1069 1322 -253 975  
SINCE JUL 1 5007 5645 -638 4524  
 
COOLING  
YESTERDAY 2 2 0 3  
MONTH TO DATE 2 16 -14 19  
SINCE MAR 1 15 27 -12 36  
SINCE JAN 1 15 27 -12 36    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 6.4  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 11:00 PM  
LOWEST 34 4:00 PM  
AVERAGE 52  
   
......................................................
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 93 2022  
MINIMUM TEMPERATURE (F) 51 30 1938  
 
SUNRISE AND SUNSET  
MAY 13 2025...........SUNRISE 5:33 AM CDT SUNSET 8:02 PM CDT  
MAY 14 2025...........SUNRISE 5:32 AM CDT SUNSET 8:03 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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