349  
CDUS43 KDTX 312140  
CLIMBS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
440 PM EST TUE DEC 31 2019  
   
...............................
 
 
   
..THE TRI CITIES MI CLIMATE SUMMARY FOR DECEMBER 31 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 32 308 PM 30 2 37  
MINIMUM 29 853 AM 17 12 27  
AVERAGE 31 24 7 32  
 
PRECIPITATION (IN)  
TODAY 0.04 0.06 -0.02 0.61  
MONTH TO DATE 2.72 1.86 0.86 1.98  
SINCE DEC 1 2.72 1.86 0.86 1.98  
SINCE JAN 1 34.16 31.54 2.62 31.30  
 
SNOWFALL (IN)  
TODAY 1.6 0.4 1.2 0.4  
MONTH TO DATE 5.8 9.0 -3.2 1.8  
SINCE DEC 1 5.8 9.0 -3.2 1.8  
SINCE JUL 1 12.4 12.9 -0.5 14.3  
SNOW DEPTH 2  
 
DEGREE DAYS  
HEATING  
TODAY 34 41 -7 33  
MONTH TO DATE 998 1167 -169 1036  
SINCE DEC 1 998 1167 -169 1036  
SINCE JUL 1 2452 2640 -188 2561  
 
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 26 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 17.8  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85  
LOWEST 66  
AVERAGE 76  
   
......................................................
 
 
SUNRISE AND SUNSET  
DECEMBER 31 2019......SUNRISE 809 AM EST SUNSET 509 PM EST  
JANUARY 1 2020.......SUNRISE 809 AM EST SUNSET 510 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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