817  
CDUS43 KDTX 130538  
CLIMBS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
1238 AM EST FRI DEC 13 2019  
   
...............................
 
 
   
..THE TRI CITIES MI CLIMATE SUMMARY FOR DECEMBER 12 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 37 1039 PM 34 3 36  
MINIMUM 13 218 AM 22 -9 23  
AVERAGE 25 28 -3 30  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.05 -0.05 T  
MONTH TO DATE 0.91 0.79 0.12 0.73  
SINCE DEC 1 0.91 0.79 0.12 0.73  
SINCE JAN 1 32.35 30.47 1.88 30.05  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.3 -0.3 T  
MONTH TO DATE 3.3 3.1 0.2 0.2  
SINCE DEC 1 3.3 3.1 0.2 0.2  
SINCE JUL 1 9.9 7.0 2.9 12.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 40 37 3 35  
MONTH TO DATE 409 418 -9 431  
SINCE DEC 1 409 418 -9 431  
SINCE JUL 1 1863 1891 -28 1956  
 
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 24 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 11.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 500 AM  
LOWEST 56 200 PM  
AVERAGE 68  
   
......................................................
 
 
SUNRISE AND SUNSET  
DECEMBER 13 2019......SUNRISE 801 AM EST SUNSET 500 PM EST  
DECEMBER 14 2019......SUNRISE 802 AM EST SUNSET 500 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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