Climatological Report (Monthly)
Issued by NWS Duluth, MN

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000
CXUS53 KDLH 011931
CLMDLH

CLIMATE REPORT
NATIONAL WEATHER SERVICE DULUTH MN
231 PM CDT SUN OCT 01 2023

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

...THE DULUTH CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1870 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             97   09/03/2023
 LOW              22   09/22/1974
                       09/26/1965
                       09/20/1962
HIGHEST           97R  09/03         MM      MM       85  09/01
LOWEST            35   09/13         MM      MM       29  09/28
AVG. MAXIMUM    69.7               67.2     2.5     68.2
AVG. MINIMUM    54.1               47.3     6.8     49.0
MEAN            61.9               57.2     4.7     58.6
DAYS MAX >= 90     1                0.0     1.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                1.1    -1.1        1
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       11.52   1881
 MINIMUM        0.19   1952
TOTALS         10.36               3.48    6.88     2.73
DAILY AVG.      0.35               0.12    0.23     0.09
DAYS >= .01       14               11.6     2.4       10
DAYS >= .10       10                6.7     3.3        7
DAYS >= .50        5                2.0     3.0        2
DAYS >= 1.00       4                0.8     3.2        0
GREATEST
 24 HR. TOTAL   4.17   09/23 TO 09/24

SNOWFALL (INCHES)
RECORDS
 TOTAL           2.4   1991
TOTALS           0.0                0.1    -0.1      0.0
SINCE 7/1          T                0.1    -0.1       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL     0.0

DEGREE DAYS
HEATING TOTAL    155                254     -99      215
 SINCE 7/1       250                366    -116       MM
COOLING TOTAL     68                 21      47       28
 SINCE 1/1       274                254      20       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.7
HIGHEST WIND SPEED/DIRECTION    25/110    DATE  09/24
                                25/070          09/26
HIGHEST GUST SPEED/DIRECTION    37/110    DATE  09/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.58
NUMBER OF DAYS FAIR            9
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     78

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                      11
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      19     FOG W/VIS <= 1/4 MILE      5
HAZE                      4

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

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