072  
CDUS43 KDTX 170536  
CLIMBS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
1236 AM EST TUE DEC 17 2019  
   
...............................
 
 
   
..THE TRI CITIES MI CLIMATE SUMMARY FOR DECEMBER 16 2019
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1898 TO 2019  
 
WEATHER ITEM OBSERVED TIME NORMAL DEPARTURE LAST  
VALUE (LST) VALUE FROM YEAR  
NORMAL    
...................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 32 400 PM 33 -1 34  
MINIMUM 24 1112 PM 21 3 30  
AVERAGE 28 27 1 32  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.06 -0.06 0.00  
MONTH TO DATE 0.91 1.02 -0.11 0.90  
SINCE DEC 1 0.91 1.02 -0.11 0.90  
SINCE JAN 1 32.35 30.70 1.65 30.22  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.3 -0.3 0.0  
MONTH TO DATE 3.3 4.3 -1.0 0.2  
SINCE DEC 1 3.3 4.3 -1.0 0.2  
SINCE JUL 1 9.9 8.2 1.7 12.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 37 38 -1 33  
MONTH TO DATE 546 568 -22 560  
SINCE DEC 1 546 568 -22 560  
SINCE JUL 1 2000 2041 -41 2085  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 613 557 56 883    
...................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 3.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 1000 PM  
LOWEST 63 300 PM  
AVERAGE 72  
   
......................................................
 
 
SUNRISE AND SUNSET  
DECEMBER 17 2019......SUNRISE 804 AM EST SUNSET 501 PM EST  
DECEMBER 18 2019......SUNRISE 804 AM EST SUNSET 501 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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