034  
CDUS43 KDTX 172025  
CLIMBS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
425 PM EDT SAT MAY 17 2025  
   
...............................
 
 
   
..THE TRI CITIES MI CLIMATE SUMMARY FOR MAY 17 2025
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 63 1200 AM 89 1936 69 -6 78  
MINIMUM 53 1007 AM 32 1983 48 5 60  
AVERAGE 58 59 -1 69  
 
PRECIPITATION (IN)  
TODAY 0.03 1.98 1986 0.11 -0.08 0.00  
MONTH TO DATE 3.11 1.90 1.21 0.84  
SINCE MAR 1 8.29 7.11 1.18 5.99  
SINCE JAN 1 9.55 10.80 -1.25 8.97  
 
SNOWFALL (IN)  
TODAY 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 2.1 8.4 -6.3 6.2  
SINCE JUL 1 32.3 49.0 -16.7 32.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 7 8 -1 0  
MONTH TO DATE 143 173 -30 107  
SINCE MAR 1 1469 1709 -240 1327  
SINCE JUL 1 6037 6654 -617 5454  
 
COOLING  
TODAY 0 1 -1 4  
MONTH TO DATE 24 10 14 8  
SINCE MAR 1 25 13 12 9  
SINCE JAN 1 25 13 12 9    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 16.3  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87  
LOWEST 62  
AVERAGE 75  
   
......................................................
 
 
THE TRI CITIES MI CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 92 1998  
MINIMUM TEMPERATURE (F) 49 31 1925  
 
SUNRISE AND SUNSET  
MAY 17 2025...........SUNRISE 609 AM EDT SUNSET 857 PM EDT  
MAY 18 2025...........SUNRISE 608 AM EDT SUNSET 858 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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