903  
CDUS43 KDLH 180625  
CLIDLH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DULUTH MN  
125 AM CDT MON AUG 18 2025  
   
...............................  
 
   
..THE DULUTH CLIMATE SUMMARY FOR AUGUST 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 65 12:06 PM 91 1934 76 -11 76  
MINIMUM 56 9:10 PM 39 1981 55 1 63  
AVERAGE 61 66 -5 70  
 
PRECIPITATION (IN)  
YESTERDAY T 1.98 1971 0.12 -0.12 0.07  
MONTH TO DATE 0.58 2.03 -1.45 2.53  
SINCE JUN 1 7.27 10.34 -3.07 11.59  
SINCE JAN 1 14.33 19.66 -5.33 21.41  
 
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 JUN 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 4 2 2 0  
MONTH TO DATE 11 25 -14 24  
SINCE JUN 1 219 227 -8 155  
SINCE JUL 1 65 75 -10 44  
 
COOLING  
YESTERDAY 0 2 -2 5  
MONTH TO DATE 61 53 8 48  
SINCE JUN 1 193 199 -6 208  
SINCE JAN 1 204 206 -2 209    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 18.4  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1:00 AM  
LOWEST 70 12:00 PM  
AVERAGE 85  
   
......................................................  
 
THE DULUTH CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 92 1934  
1955  
MINIMUM TEMPERATURE (F) 55 38 1950  
1975  
 
SUNRISE AND SUNSET  
AUGUST 18 2025........SUNRISE 6:11 AM CDT SUNSET 8:13 PM CDT  
AUGUST 19 2025........SUNRISE 6:12 AM CDT SUNSET 8:12 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab MN Page
The Nexlab WI Page
Main Text Page