112  
CDUS43 KLOT 172133  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT THU AUG 17 2023  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 17 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1905 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 77 1:45 PM 102 1988 82 -5 84  
MINIMUM 64 12:49 AM 46 1924 62 2 55  
AVERAGE 71 72 -1 70  
 
PRECIPITATION (IN)  
TODAY 0.04 2.03 1979 0.14 -0.10 T  
MONTH TO DATE 1.41 2.27 -0.86 6.24  
SINCE JUN 1 7.63 11.31 -3.68 13.88  
SINCE JAN 1 21.47 24.87 -3.40 25.45  
 
SNOWFALL (IN)  
TODAY 0.0 0.0 MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 2  
SINCE JUN 1 20 30 -10 18  
SINCE JUL 1 0 3 -3 2  
 
COOLING  
TODAY 6 7 -1 5  
MONTH TO DATE 104 133 -29 137  
SINCE JUN 1 516 589 -73 636  
SINCE JAN 1 564 650 -86 772    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 15.2  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 7:00 AM  
LOWEST 48 1:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 101 1936  
MINIMUM TEMPERATURE (F) 62 45 1963  
 
SUNRISE AND SUNSET  
AUGUST 17 2023........SUNRISE 6:06 AM CDT SUNSET 7:54 PM CDT  
AUGUST 18 2023........SUNRISE 6:07 AM CDT SUNSET 7:53 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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