186  
CDUS43 KLOT 250634  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT THU MAY 25 2023  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 24 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 67 1:01 PM 93 1921 73 -6 66  
1950  
MINIMUM 52 11:26 PM 34 1992 53 -1 49  
AVERAGE 60 63 -3 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.62 1927 0.14 -0.14 0.00  
MONTH TO DATE 0.42 3.54 -3.12 3.11  
SINCE MAR 1 6.24 9.74 -3.50 12.11  
SINCE JAN 1 12.67 13.70 -1.03 15.54  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1925 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 2.3 6.8 -4.5 4.2  
SINCE JUL 1 20.2 38.4 -18.2 32.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 5 0 7  
MONTH TO DATE 118 172 -54 163  
SINCE MAR 1 1336 1448 -112 1443  
SINCE JUL 1 5371 5917 -546 5660  
 
COOLING  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 36 39 -3 95  
SINCE MAR 1 61 49 12 98  
SINCE JAN 1 61 49 12 98    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 12.9  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 66 9:00 PM  
LOWEST 50 7:00 AM  
AVERAGE 58  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 94 1911  
MINIMUM TEMPERATURE (F) 54 32 1992  
 
SUNRISE AND SUNSET  
MAY 25 2023...........SUNRISE 5:23 AM CDT SUNSET 8:15 PM CDT  
MAY 26 2023...........SUNRISE 5:22 AM CDT SUNSET 8:16 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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