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CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL                                  
134 AM CDT FRI SEP 22 2017


................................... 

...THE ROCKFORD IL CLIMATE SUMMARY FOR SEPTEMBER 21 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1905 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         89    217 PM  94    1920  73     16       77       
  MINIMUM         69    540 AM  34    1995  50     19       66       
  AVERAGE         79                        62     17       72      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.04          3.20 1950   0.12  -0.08     1.04    
  MONTH TO DATE    0.51                      2.40  -1.89     2.90    
  SINCE SEP 1      0.51                      2.40  -1.89     2.90    
  SINCE JAN 1     37.30                     28.06   9.24    28.82    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0    MM   0.0    0.0       T      
  MONTH TO DATE    0.0                       0.0    0.0       T      
  SINCE SEP 1      0.0                       0.0    0.0       T      
  SINCE JUL 1      0.0                       0.0    0.0       T      
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         5     -5        0       
  MONTH TO DATE   50                        55     -5        2       
  SINCE SEP 1     50                        55     -5        2       
  SINCE JUL 1     57                        69    -12        2       
                                                                     
 COOLING                                                             
  YESTERDAY       14                         2     12        7       
  MONTH TO DATE   59                        73    -14      131       
  SINCE SEP 1     59                        73    -14      131       
  SINCE JAN 1    743                       800    -57     1048       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     S (170)      
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     S (180)      
  AVERAGE WIND SPEED     5.3                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           300 AM                                     
 LOWEST     37           200 PM                                     
 AVERAGE    69                                                       

..........................................................

                                                                     
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   73        93      1937                    
 MINIMUM TEMPERATURE (F)   49        30      1976                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 22 2017.....SUNRISE   644 AM CDT   SUNSET   653 PM CDT   
SEPTEMBER 23 2017.....SUNRISE   645 AM CDT   SUNSET   651 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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