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CLIMBS


CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI                          
1238 AM EST SUN DEC 31 2017


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

...THE TRI CITIES MI CLIMATE SUMMARY FOR DECEMBER 30 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1898 TO 2017


WEATHER ITEM   OBSERVED TIME   NORMAL DEPARTURE LAST                 
                VALUE   (LST)  VALUE  FROM      YEAR                 
                                      NORMAL                         
......................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         16    359 PM  30    -14       29                   
  MINIMUM          2   1109 PM  18    -16       25                   
  AVERAGE          9            24    -15                           
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             0.05  -0.05                         
  MONTH TO DATE    1.03          1.80  -0.77                         
  SINCE DEC 1      1.03          1.80  -0.77                         
  SINCE JAN 1     37.75         31.48   6.27                         
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.3                                               
  MONTH TO DATE   13.2                                               
  SINCE DEC 1     13.2                                               
  SINCE JUL 1     13.2                                               
  SNOW DEPTH       2                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       56                   15                            
  MONTH TO DATE 1222                   96                            
  SINCE DEC 1   1222                   96                            
  SINCE JUL 1   2453                 -146                            
                                                                     
 COOLING                                                             
  YESTERDAY        0                    0                            
  MONTH TO DATE    0                    0                            
  SINCE DEC 1      0                    0                            
  SINCE JAN 1    665                  108                            
......................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     W (280)      
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     W (290)      
  AVERAGE WIND SPEED    11.3                                         


                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT SNOW                                                         
  FOG                                                                
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    92                                                       
 LOWEST     59                                                       
 AVERAGE    76                                                       

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

                                                                     
THE TRI CITIES MI CLIMATE NORMALS FOR TODAY
                         NORMAL                                      
 MAXIMUM TEMPERATURE (F)   30                                        
 MINIMUM TEMPERATURE (F)   17                                        

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 31 2017......SUNRISE   809 AM EST   SUNSET   510 PM EST   
JANUARY  1 2018.......SUNRISE   809 AM EST   SUNSET   511 PM EST   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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