AFOS product CLIRFD
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CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL                                  
1231 AM CST MON DEC 11 2017


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR DECEMBER 10 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         33    306 PM  57    2015  35     -2       23       
                                      1911                          
  MINIMUM         19   1123 PM -20    1919  19      0       17       
  AVERAGE         26                        27     -1       20      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.60 2003   0.07  -0.07     0.09    
  MONTH TO DATE    0.02                      0.75  -0.73     0.63    
  SINCE DEC 1      0.02                      0.75  -0.73     0.63    
  SINCE JAN 1     44.20                     35.01   9.19    33.91    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           7.0  1944   0.4   -0.4      2.0     
  MONTH TO DATE    0.4                       3.2   -2.8      7.3     
  SINCE DEC 1      0.4                       3.2   -2.8      7.3     
  SINCE JUL 1      0.6                       5.0   -4.4      7.3     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       39                        38      1       45       
  MONTH TO DATE  320                       362    -42      365       
  SINCE DEC 1    320                       362    -42      365       
  SINCE JUL 1   1534                      1697   -163     1234       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    828                       820      8     1103       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    NW (330)      
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NW (330)      
  AVERAGE WIND SPEED     8.2                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.7                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    84          1100 PM                                     
 LOWEST     59          1200 PM                                     
 AVERAGE    72                                                       

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

                                                                     
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   34        61      1949                    
 MINIMUM TEMPERATURE (F)   19       -18      1972                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 11 2017......SUNRISE   715 AM CST   SUNSET   424 PM CST   
DECEMBER 12 2017......SUNRISE   716 AM CST   SUNSET   425 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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