822  
CDUS43 KDTX 172143  
CLIMBS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
443 PM EST TUE DEC 17 2019  
   
...............................
 
 
   
..THE TRI CITIES MI CLIMATE SUMMARY FOR DECEMBER 17 2019
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 31 225 PM 33 -2 36  
MINIMUM 22 322 AM 21 1 28  
AVERAGE 27 27 0 32  
 
PRECIPITATION (IN)  
TODAY 0.00 0.06 -0.06 0.00  
MONTH TO DATE 0.91 1.08 -0.17 0.90  
SINCE DEC 1 0.91 1.08 -0.17 0.90  
SINCE JAN 1 32.35 30.76 1.59 30.22  
 
SNOWFALL (IN)  
TODAY 0.0 0.3 -0.3 0.0  
MONTH TO DATE 3.3 4.6 -1.3 0.2  
SINCE DEC 1 3.3 4.6 -1.3 0.2  
SINCE JUL 1 9.9 8.5 1.4 12.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 38 38 0 33  
MONTH TO DATE 584 606 -22 593  
SINCE DEC 1 584 606 -22 593  
SINCE JUL 1 2038 2079 -41 2118  
 
COOLING  
TODAY 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 20 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 10.2  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78  
LOWEST 51  
AVERAGE 65  
   
......................................................
 
 
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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