179  
CDUS43 KDLH 180627  
CLIDLH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DULUTH MN  
127 AM CDT THU SEP 18 2025  
   
...............................  
 
   
..THE DULUTH CLIMATE SUMMARY FOR SEPTEMBER 17 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1870 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 3:14 PM 90 1891 67 10 83  
MINIMUM 59 11:59 PM 28 1959 47 12 63  
AVERAGE 68 57 11 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.39 1923 0.11 -0.11 T  
MONTH TO DATE 1.90 2.01 -0.11 0.08  
SINCE SEP 1 1.90 2.01 -0.11 0.08  
SINCE JAN 1 17.18 23.37 -6.19 22.44  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2001 0.0 0.0 0.0  
2002  
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 9 -9 0  
MONTH TO DATE 126 106 20 44  
SINCE SEP 1 126 106 20 44  
SINCE JUL 1 246 220 26 97  
 
COOLING  
YESTERDAY 3 1 2 8  
MONTH TO DATE 10 18 -8 46  
SINCE SEP 1 10 18 -8 46  
SINCE JAN 1 230 251 -21 284    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 12:00 AM  
LOWEST 57 11:00 AM  
AVERAGE 77  
   
......................................................  
 
THE DULUTH CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 84 1984  
2000  
2024  
MINIMUM TEMPERATURE (F) 47 28 2020  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2025.....SUNRISE 6:51 AM CDT SUNSET 7:14 PM CDT  
SEPTEMBER 19 2025.....SUNRISE 6:52 AM CDT SUNSET 7:12 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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