217  
CDUS43 KDTX 212145  
CLIMBS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
445 PM EST SAT DEC 21 2019  
   
...............................
 
 
   
..THE TRI CITIES MI CLIMATE SUMMARY FOR DECEMBER 21 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 47 208 PM 32 15 40  
MINIMUM 25 734 AM 20 5 30  
AVERAGE 36 26 10 35  
 
PRECIPITATION (IN)  
TODAY 0.00 0.05 -0.05 0.24  
MONTH TO DATE 0.94 1.29 -0.35 1.24  
SINCE DEC 1 0.94 1.29 -0.35 1.24  
SINCE JAN 1 32.38 30.97 1.41 30.56  
 
SNOWFALL (IN)  
TODAY MM 0.3 MM T  
MONTH TO DATE 4.2 5.9 -1.7 0.2  
SINCE DEC 1 4.2 5.9 -1.7 0.2  
SINCE JUL 1 10.8 9.8 1.0 12.7  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 29 39 -10 30  
MONTH TO DATE 737 762 -25 710  
SINCE DEC 1 737 762 -25 710  
SINCE JUL 1 2191 2235 -44 2235  
 
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 SW (230)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 9.5  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78  
LOWEST 49  
AVERAGE 64  
   
......................................................
 
 
SUNRISE AND SUNSET  
DECEMBER 21 2019......SUNRISE 806 AM EST SUNSET 503 PM EST  
DECEMBER 22 2019......SUNRISE 807 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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