315 
CDUS43 KDTX 200600
CLIMBS


CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI                          
100 AM EST WED DEC 20 2017


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

...THE TRI CITIES MI CLIMATE SUMMARY FOR DECEMBER 19 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         43    217 PM  32     11       17                   
  MINIMUM         33   1139 PM  20     13        3                   
  AVERAGE         38            26     12                           
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.05  -0.05                         
  MONTH TO DATE    0.83          1.18  -0.35                         
  SINCE DEC 1      0.83          1.18  -0.35                         
  SINCE JAN 1     37.55         30.86   6.69                         
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    9.7                                               
  SINCE DEC 1      9.7                                               
  SINCE JUL 1      9.7                                               
  SNOW DEPTH       4                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       27                  -12                            
  MONTH TO DATE  686                    2                            
  SINCE DEC 1    686                    2                            
  SINCE JUL 1   1917                 -240                            
                                                                     
 COOLING                                                             
  YESTERDAY        0                    0                            
  MONTH TO DATE    0                    0                            
  SINCE DEC 1      0                    0                            
  SINCE JAN 1    665                  108                            
......................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     W (280)      
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION     W (280)      
  AVERAGE WIND SPEED    15.4                                         


                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    92                                                       
 LOWEST     56                                                       
 AVERAGE    74                                                       

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

                                                                     
THE TRI CITIES MI CLIMATE NORMALS FOR TODAY
                         NORMAL                                      
 MAXIMUM TEMPERATURE (F)   32                                        
 MINIMUM TEMPERATURE (F)   20                                        

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 20 2017......SUNRISE   806 AM EST   SUNSET   502 PM EST   
DECEMBER 21 2017......SUNRISE   806 AM EST   SUNSET   503 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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