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.  
  
  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab MN Page
The Nexlab WI Page
 Main Text Page
Main Text Page