Climatological Report (Daily)
Issued by NWS Duluth, MN

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043
CDUS43 KDLH 130638
CLIDLH

CLIMATE REPORT
NATIONAL WEATHER SERVICE DULUTH MN
138 AM CDT SAT SEP 13 2025

...................................

...THE DULUTH CLIMATE SUMMARY FOR SEPTEMBER 12 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   1:17 PM  87    1948  69     -4       77
  MINIMUM         54   5:54 AM  29    2007  49      5       58
  AVERAGE         60                        59      1       68

PRECIPITATION (IN)
  YESTERDAY        T             2.04 1903   0.12  -0.12     0.00
  MONTH TO DATE    1.90                      1.43   0.47     0.08
  SINCE SEP 1      1.90                      1.43   0.47     0.08
  SINCE JAN 1     17.18                     22.79  -5.61    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        5                         7     -2        0
  MONTH TO DATE  122                        66     56       44
  SINCE SEP 1    122                        66     56       44
  SINCE JUL 1    242                       180     62       97

 COOLING
  YESTERDAY        0                         1     -1        3
  MONTH TO DATE    1                        13    -12       16
  SINCE SEP 1      1                        13    -12       16
  SINCE JAN 1    221                       246    -25      254
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     S (160)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    SE (150)
  AVERAGE WIND SPEED     8.5


SKY COVER
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          12:00 AM
 LOWEST     84           1:00 PM
 AVERAGE    92

..........................................................


THE DULUTH CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        84      1990
 MINIMUM TEMPERATURE (F)   48        30      1923
                                             1963
                                             1975


SUNRISE AND SUNSET
SEPTEMBER 13 2025.....SUNRISE   6:44 AM CDT   SUNSET   7:24 PM CDT
SEPTEMBER 14 2025.....SUNRISE   6:46 AM CDT   SUNSET   7:22 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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