309  
CDUS43 KLOT 170632  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT FRI MAY 17 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 16 2024  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 75 11:43 AM 94 1962 71 4 81  
MINIMUM 52 2:47 AM 33 1997 51 1 51  
AVERAGE 64 61 3 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.48 1.38 1974 0.15 0.33 0.00  
MONTH TO DATE 3.05 2.37 0.68 0.39  
SINCE MAR 1 10.11 8.57 1.54 6.21  
SINCE JAN 1 14.26 12.53 1.73 12.64  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 2019 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 1.0 6.8 -5.8 2.3  
SINCE JUL 1 22.2 38.4 -16.2 20.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 1 6 -5 0  
MONTH TO DATE 54 129 -75 91  
SINCE MAR 1 1067 1405 -338 1309  
SINCE JUL 1 4755 5874 -1119 5344  
 
COOLING  
YESTERDAY 0 2 -2 1  
MONTH TO DATE 16 20 -4 22  
SINCE MAR 1 25 30 -5 47  
SINCE JAN 1 25 30 -5 47    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 7.1  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 10:00 PM  
LOWEST 55 11:00 AM  
AVERAGE 71  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 94 1962  
MINIMUM TEMPERATURE (F) 51 36 1973  
2002  
 
SUNRISE AND SUNSET  
MAY 17 2024...........SUNRISE 5:29 AM CDT SUNSET 8:08 PM CDT  
MAY 18 2024...........SUNRISE 5:28 AM CDT SUNSET 8:09 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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