040  
CDUS43 KDTX 180536  
CLIDTW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
136 AM EDT MON AUG 18 2025  
   
...............................
 
 
   
..THE DETROIT MI CLIMATE SUMMARY FOR AUGUST 17 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1874 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 84 133 PM 100 1988 81 3 81  
MINIMUM 63 1159 PM 46 1981 63 0 67  
AVERAGE 74 72 2 74  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 4.51 1926 0.10 -0.10 0.02  
MONTH TO DATE 1.09 1.85 -0.76 1.52  
SINCE JUN 1 12.16 8.62 3.54 7.43  
SINCE JAN 1 23.40 22.34 1.06 21.65  
 
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 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 14 30 -16 10  
SINCE JUL 1 0 2 -2 1  
 
COOLING  
YESTERDAY 9 8 1 9  
MONTH TO DATE 181 141 40 144  
SINCE JUN 1 766 600 166 651  
SINCE JAN 1 791 655 136 742    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 10.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 91 400 AM  
LOWEST 53 100 PM  
AVERAGE 72  
   
......................................................
 
 
THE DETROIT MI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 95 1947  
MINIMUM TEMPERATURE (F) 63 46 1977  
1981  
 
SUNRISE AND SUNSET  
AUGUST 18 2025........SUNRISE 644 AM EDT SUNSET 829 PM EDT  
AUGUST 19 2025........SUNRISE 645 AM EDT SUNSET 828 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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