Climatological Report (Monthly)
Issued by NWS Duluth, MN

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CXUS53 KDLH 011543
CLMINL

CLIMATE REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1043 AM CDT THU OCT 01 2020

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

...THE INTERNATIONAL FALLS CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2020...

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1895 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             96   09/07/1906
 LOW              19   09/15/2011
HIGHEST           79   09/22         MM      MM       84  09/16
LOWEST            20   09/18         MM      MM       29  09/28
AVG. MAXIMUM    64.9               65.4    -0.5     64.5
AVG. MINIMUM    40.2               41.8    -1.6     47.1
MEAN            52.6               53.6    -1.0     55.8
DAYS MAX >= 90     0                0.1    -0.1        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     7                4.1     2.9        1
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        7.36   1961
 MINIMUM        0.20   1897
TOTALS          1.81               2.99   -1.18     6.64
DAILY AVG.      0.06               0.10   -0.04     0.22
DAYS >= .01       11               11.9    -0.9       17
DAYS >= .10        6                5.9     0.1       12
DAYS >= .50        1                1.7    -0.7        6
DAYS >= 1.00       0                0.7    -0.7        2
GREATEST
 24 HR. TOTAL   0.56   09/25 TO 09/25
                       08/31 TO 08/31
                       09/25 TO 09/25

DEGREE DAYS
HEATING TOTAL    367                353      14      293
 SINCE 7/1       456                534     -78      435
COOLING TOTAL      2                 11      -9       23
 SINCE 1/1       249                192      57      179
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.4
HIGHEST WIND SPEED/DIRECTION    30/310    DATE  09/03
HIGHEST GUST SPEED/DIRECTION    45/280    DATE  09/03

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       6
LIGHT RAIN               13     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      12     FOG W/VIS <= 1/4 MILE      2
HAZE                      7

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

$$


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