699  
CDUS43 KLOT 252134  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CDT THU MAY 25 2023  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 25 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 61 2:55 PM 94 1911 74 -13 79  
MINIMUM 49 5:02 AM 32 1992 54 -5 54  
AVERAGE 55 64 -9 67  
 
PRECIPITATION (IN)  
TODAY 0.00 2.52 1879 0.14 -0.14 0.22  
MONTH TO DATE 0.42 3.68 -3.26 3.33  
SINCE MAR 1 6.24 9.88 -3.64 12.33  
SINCE JAN 1 12.67 13.84 -1.17 15.76  
 
SNOWFALL (IN)  
TODAY 0.0 T 1924 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  
TODAY 10 4 6 0  
MONTH TO DATE 128 176 -48 163  
SINCE MAR 1 1346 1452 -106 1443  
SINCE JUL 1 5381 5921 -540 5660  
 
COOLING  
TODAY 0 3 -3 2  
MONTH TO DATE 36 42 -6 97  
SINCE MAR 1 61 52 9 100  
SINCE JAN 1 61 52 9 100    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 12.2  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 54 12:00 AM  
LOWEST 28 1:00 AM  
AVERAGE 41  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 94 1911  
MINIMUM TEMPERATURE (F) 54 34 1983  
 
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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