181  
CDUS43 KDTX 202145  
CLIMBS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
445 PM EST FRI DEC 20 2019  
   
...............................
 
 
   
..THE TRI CITIES MI CLIMATE SUMMARY FOR DECEMBER 20 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 37 252 PM 32 5 43  
MINIMUM 27 712 AM 20 7 36  
AVERAGE 32 26 6 40  
 
PRECIPITATION (IN)  
TODAY 0.00 0.06 -0.06 0.10  
MONTH TO DATE 0.94 1.24 -0.30 1.00  
SINCE DEC 1 0.94 1.24 -0.30 1.00  
SINCE JAN 1 32.38 30.92 1.46 30.32  
 
SNOWFALL (IN)  
TODAY MM 0.4 MM 0.0  
MONTH TO DATE 4.2 5.6 -1.4 0.2  
SINCE DEC 1 4.2 5.6 -1.4 0.2  
SINCE JUL 1 10.8 9.5 1.3 12.7  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 33 39 -6 25  
MONTH TO DATE 708 723 -15 680  
SINCE DEC 1 708 723 -15 680  
SINCE JUL 1 2162 2196 -34 2205  
 
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 17 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 8.9  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 75  
LOWEST 45  
AVERAGE 60  
   
......................................................
 
 
SUNRISE AND SUNSET  
DECEMBER 20 2019......SUNRISE 805 AM EST SUNSET 502 PM EST  
DECEMBER 21 2019......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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