858  
CDUS43 KDTX 200538  
CLIDTW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
138 AM EDT SUN MAY 20 2018  
 
   
...............................
 
 
   
..THE DETROIT MI CLIMATE SUMMARY FOR MAY 19 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1874 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 106 PM 91 1934 71 6 64  
MINIMUM 59 427 AM 32 2002 50 9 46  
AVERAGE 68 61 7 55  
 
PRECIPITATION (IN)  
YESTERDAY 0.19 1.68 1949 0.11 0.08 0.02  
MONTH TO DATE 5.60 1.98 3.62 2.19  
SINCE MAR 1 12.02 7.16 4.86 10.00  
SINCE JAN 1 17.65 11.14 6.51 14.73  
 
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 MAR 1 8.3 8.6 -0.3 7.0  
SINCE JUL 1 61.0 42.5 18.5 37.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 10  
MONTH TO DATE 66 155 -89 199  
SINCE MAR 1 1629 1496 133 1388  
SINCE JUL 1 6065 6049 16 5126  
 
COOLING  
YESTERDAY 3 1 2 0  
MONTH TO DATE 20 14 6 29  
SINCE MAR 1 20 20 0 36  
SINCE JAN 1 20 20 0 36    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 8.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 600 AM  
LOWEST 52 1200 AM  
AVERAGE 68  
   
......................................................
 
 
 
THE DETROIT MI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 91 1977  
MINIMUM TEMPERATURE (F) 51 33 1981  
 
 
SUNRISE AND SUNSET  
MAY 20 2018...........SUNRISE 608 AM EDT SUNSET 853 PM EDT  
MAY 21 2018...........SUNRISE 607 AM EDT SUNSET 854 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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