476  
CDUS43 KDTX 310544  
CLIMBS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
1244 AM EST TUE DEC 31 2019  
   
...............................
 
 
   
..THE TRI CITIES MI CLIMATE SUMMARY FOR DECEMBER 30 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 41 1004 AM 30 11 32  
MINIMUM 32 1159 PM 18 14 25  
AVERAGE 37 24 13 29  
 
PRECIPITATION (IN)  
YESTERDAY 1.05 0.05 1.00 0.01  
MONTH TO DATE 2.68 1.80 0.88 1.37  
SINCE DEC 1 2.68 1.80 0.88 1.37  
SINCE JAN 1 34.12 31.48 2.64 30.69  
 
SNOWFALL (IN)  
YESTERDAY T 0.3 -0.3 0.5  
MONTH TO DATE 4.2 8.6 -4.4 1.4  
SINCE DEC 1 4.2 8.6 -4.4 1.4  
SINCE JUL 1 10.8 12.5 -1.7 13.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 28 41 -13 36  
MONTH TO DATE 964 1126 -162 1003  
SINCE DEC 1 964 1126 -162 1003  
SINCE JUL 1 2418 2599 -181 2528  
 
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 39 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 52 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 20.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 100 AM  
LOWEST 64 200 PM  
AVERAGE 79  
   
......................................................
 
 
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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