725  
CDUS43 KLOT 060647  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1247 AM CST WED DEC 06 2023  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 5 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 41 3:02 PM 68 2001 40 1 44  
MINIMUM 32 11:59 PM 4 2005 27 5 29  
AVERAGE 37 33 4 37  
 
PRECIPITATION (IN)  
YESTERDAY 0.12 1.10 1906 0.08 0.04 0.00  
MONTH TO DATE 1.06 0.39 0.67 T  
SINCE DEC 1 1.06 0.39 0.67 T  
SINCE JAN 1 31.82 36.14 -4.32 29.83  
 
SNOWFALL (IN)  
YESTERDAY 0.3 3.9 1977 0.3 0.0 0.0  
MONTH TO DATE 0.3 1.1 -0.8 T  
SINCE DEC 1 0.3 1.1 -0.8 T  
SINCE JUL 1 3.0 3.1 -0.1 1.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 28 32 -4 28  
MONTH TO DATE 130 154 -24 150  
SINCE DEC 1 130 154 -24 150  
SINCE JUL 1 1094 1305 -211 1215  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1145 1003 142 1174    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 8.8  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 5:00 AM  
LOWEST 69 9:00 PM  
AVERAGE 83  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 39 65 1951  
1980  
MINIMUM TEMPERATURE (F) 27 0 1885  
1972  
2007  
 
SUNRISE AND SUNSET  
DECEMBER 6 2023......SUNRISE 7:05 AM CST SUNSET 4:20 PM CST  
DECEMBER 7 2023......SUNRISE 7:06 AM CST SUNSET 4:20 PM CST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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