Climatological Report (Monthly)
Issued by NWS Duluth, MN

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343
CXUS53 KDLH 051246
CLMDLH

CLIMATE REPORT
NATIONAL WEATHER SERVICE DULUTH MN
746 AM CDT TUE AUG 05 2025

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

...THE DULUTH CLIMATE SUMMARY FOR THE MONTH OF JULY 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1870 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            106   07/13/1936
 LOW              35   07/01/1988
HIGHEST           88   07/27         MM      MM       90  07/27
LOWEST            46   07/18         MM      MM       47  07/01
AVG. MAXIMUM    76.2               77.7    -1.5     79.4
AVG. MINIMUM    56.7               56.2     0.5     58.2
MEAN            66.5               67.0    -0.5     68.8
DAYS MAX >= 90     0                0.8    -0.8        1
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       10.83   1909
 MINIMUM        0.47   1875
TOTALS          3.75               3.92   -0.17     1.34
DAILY AVG.      0.12               0.13   -0.01     0.04
DAYS >= .01       13               11.9     1.1       10
DAYS >= .10        6                6.9    -0.9        4
DAYS >= .50        3                2.6     0.4        0
DAYS >= 1.00       0                0.9    -0.9        0
GREATEST
 24 HR. TOTAL   1.44   07/15 TO 07/16

SNOWFALL (INCHES)
RECORDS
 TOTAL             T   2023
TOTALS           0.0                0.0     0.0      0.0
SINCE 7/1        0.0                0.0     0.0       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL       0

DEGREE DAYS
HEATING TOTAL     54                 50       4       20
 SINCE 7/1        54                 47       7       MM
COOLING TOTAL    105                110      -5      144
 SINCE 1/1       143                153     -10       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.4
HIGHEST WIND SPEED/DIRECTION    30/310    DATE  07/11
HIGHEST GUST SPEED/DIRECTION    42/310    DATE  07/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.42
NUMBER OF DAYS FAIR           15
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              9     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       5
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      21     FOG W/VIS <= 1/4 MILE      2
HAZE                     13

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

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