270  
CDUS43 KDTX 220554  
CLIMBS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
154 AM EDT FRI AUG 22 2025  
   
...............................
 
 
   
..THE TRI CITIES MI CLIMATE SUMMARY FOR AUGUST 21 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 76 327 PM 98 1955 80 -4 76  
MINIMUM 61 1159 PM 38 1950 59 2 47  
AVERAGE 69 69 0 62  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.32 1975 0.13 -0.13 0.00  
MONTH TO DATE 2.75 2.69 0.06 1.91  
SINCE JUN 1 7.25 8.80 -1.55 7.50  
SINCE JAN 1 17.59 21.11 -3.52 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 3  
MONTH TO DATE 0 6 -6 10  
SINCE JUN 1 19 62 -43 38  
SINCE JUL 1 1 15 -14 13  
 
COOLING  
YESTERDAY 4 5 -1 0  
MONTH TO DATE 160 121 39 116  
SINCE JUN 1 654 477 177 548  
SINCE JAN 1 679 521 158 592    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 7.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 500 AM  
LOWEST 55 300 PM  
AVERAGE 76  
   
......................................................
 
 
THE TRI CITIES MI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 97 1936  
MINIMUM TEMPERATURE (F) 59 39 1923  
 
SUNRISE AND SUNSET  
AUGUST 22 2025........SUNRISE 649 AM EDT SUNSET 828 PM EDT  
AUGUST 23 2025........SUNRISE 650 AM EDT SUNSET 826 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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