291  
CDUS43 KDLH 180632  
CLIDLH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DULUTH MN  
132 AM CDT SAT OCT 18 2025  
   
...............................
 
 
   
..THE DULUTH CLIMATE SUMMARY FOR OCTOBER 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 67 2:40 PM 80 1961 52 15 69  
MINIMUM 52 11:50 PM 12 1952 35 17 45  
AVERAGE 60 44 16 57  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 1.16 1990 0.09 -0.07 0.00  
MONTH TO DATE 0.37 1.74 -1.37 0.21  
SINCE SEP 1 2.90 5.22 -2.32 0.52  
SINCE JAN 1 18.18 26.58 -8.40 22.88  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.2 1990 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.6 -0.6 0.0  
SINCE SEP 1 0.0 0.7 -0.7 0.0  
SINCE JUL 1 0.0 0.7 -0.7 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 21 -16 8  
MONTH TO DATE 197 302 -105 252  
SINCE SEP 1 382 556 -174 333  
SINCE JUL 1 502 670 -168 386  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 11 0 11 0  
SINCE SEP 1 26 21 5 70  
SINCE JAN 1 246 254 -8 308    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 12.7  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 5:00 AM  
LOWEST 56 5:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE DULUTH CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 52 79 1945  
MINIMUM TEMPERATURE (F) 35 16 1972  
 
SUNRISE AND SUNSET  
OCTOBER 18 2025.......SUNRISE 7:31 AM CDT SUNSET 6:16 PM CDT  
OCTOBER 19 2025.......SUNRISE 7:33 AM CDT SUNSET 6:14 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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