818  
CDUS43 KLOT 282139  
CLICHI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
432 PM CDT WED MAY 28 2008  
 
...................................  
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 28 2008  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1971 TO 2000  
CLIMATE RECORD PERIOD 1871 TO 2008  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 61 259 PM 93 1977 74 -13 79  
MINIMUM 43 458 AM 33 1992 52 -9 50  
AVERAGE 52 63 -11 65  
 
PRECIPITATION (IN)  
TODAY 0.00 1.76 1908 0.11 -0.11 T  
MONTH TO DATE 3.69 3.05 0.64 1.79  
SINCE MAR 1 9.04 9.38 -0.34 8.94  
SINCE JAN 1 14.50 12.76 1.74 12.27  
 
SNOWFALL (IN)  
TODAY 0.0 0.0 MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 T 0.0 0.0  
SINCE MAR 1 7.9 7.6 0.3 5.3  
SINCE JUL 1 60.3 38.0 22.3 35.6  
 
DEGREE DAYS  
HEATING  
TODAY 13 4 9 0  
MONTH TO DATE 281 220 61 116  
SINCE MAR 1 1668 1591 77 1356  
SINCE JUL 1 6359 6437 -78 6038  
 
COOLING  
TODAY 0 3 -3 0  
MONTH TO DATE 0 39 -39 57  
SINCE MAR 1 0 49 -49 66  
SINCE JAN 1 0 49 -49 66    
..............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 10.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 500 AM  
LOWEST 25 300 PM  
AVERAGE 54  
 
..........................................................  
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 95 1942  
MINIMUM TEMPERATURE (F) 52 37 1984  
1965  
 
 
SUNRISE AND SUNSET  
MAY 28 2008...........SUNRISE 520 AM CDT SUNSET 818 PM CDT  
MAY 29 2008...........SUNRISE 520 AM CDT SUNSET 819 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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