897  
CDUS43 KDTX 200538  
CLIMBS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
138 AM EDT WED AUG 20 2025  
   
...............................  
 
   
..THE TRI CITIES MI CLIMATE SUMMARY FOR AUGUST 19 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1912 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 70 410 PM 100 1955 80 -10 72  
MINIMUM 62 950 AM 43 1977 59 3 54  
AVERAGE 66 70 -4 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.92 1.41 1991 0.12 0.80 0.00  
MONTH TO DATE 2.75 2.43 0.32 1.91  
SINCE JUN 1 7.25 8.54 -1.29 7.50  
SINCE JAN 1 17.59 20.85 -3.26 18.17  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 2  
MONTH TO DATE 0 4 -4 3  
SINCE JUN 1 19 60 -41 31  
SINCE JUL 1 1 13 -12 6  
 
COOLING  
YESTERDAY 1 5 -4 0  
MONTH TO DATE 153 111 42 116  
SINCE JUN 1 647 467 180 548  
SINCE JAN 1 672 511 161 592    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 7.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 1000 AM  
LOWEST 71 1200 AM  
AVERAGE 84  
   
......................................................  
 
THE TRI CITIES MI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 100 1916  
MINIMUM TEMPERATURE (F) 59 41 1977  
 
SUNRISE AND SUNSET  
AUGUST 20 2025........SUNRISE 647 AM EDT SUNSET 831 PM EDT  
AUGUST 21 2025........SUNRISE 648 AM EDT SUNSET 830 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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