763  
CDUS43 KDTX 220535  
CLIDTW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
135 AM EDT FRI SEP 22 2017  
 
   
...............................
 
 
   
..THE DETROIT MI CLIMATE SUMMARY FOR SEPTEMBER 21 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1874 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 89 146 PM 92 1895 72 17 81  
MINIMUM 67 527 AM 35 1875 53 14 58  
AVERAGE 78 62 16 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.73 1919 0.11 -0.11 0.00  
MONTH TO DATE 0.90 2.35 -1.45 2.29  
SINCE SEP 1 0.90 2.35 -1.45 2.29  
SINCE JAN 1 26.20 24.78 1.42 23.51  
 
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 SEP 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 5 -5 0  
MONTH TO DATE 46 48 -2 2  
SINCE SEP 1 46 48 -2 2  
SINCE JUL 1 50 58 -8 2  
 
COOLING  
YESTERDAY 13 2 11 5  
MONTH TO DATE 60 72 -12 115  
SINCE SEP 1 60 72 -12 115  
SINCE JAN 1 810 783 27 1138    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (160)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 5.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 300 AM  
LOWEST 63 100 PM  
AVERAGE 82  
   
......................................................
 
 
 
THE DETROIT MI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 91 1941  
MINIMUM TEMPERATURE (F) 52 30 1974  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2017.....SUNRISE 721 AM EDT SUNSET 730 PM EDT  
SEPTEMBER 23 2017.....SUNRISE 722 AM EDT SUNSET 728 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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