Climatological Report (Monthly)
Issued by NWS Duluth, MN

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CXUS53 KDLH 020247
CLMINL


CLIMATE REPORT
NATIONAL WEATHER SERVICE DULUTH MN
931 PM CDT MON OCT 1 2018

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

...THE INTERNATIONAL FALLS MN CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2018

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            87   09/16        MM      MM       84  09/12
LOWEST             27   09/30        MM      MM       31  09/30
AVG. MAXIMUM     64.8              65.4    -0.6     67.3
AVG. MINIMUM     42.9              41.8     1.1     44.7
MEAN             53.8              53.6     0.2     56.0
DAYS MAX >= 90      0               0.1    -0.1        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      4               4.1    -0.1        2
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.36   1961
 MINIMUM         0.20   1897
TOTALS           3.66              2.99    0.67     3.07
DAILY AVG.       0.12              0.10    0.02     0.10
DAYS >= .01        17              11.9     5.1       15
DAYS >= .10         8               5.9     2.1        7
DAYS >= .50         3               1.7     1.3        1
DAYS >= 1.00        0               0.7    -0.7        0
GREATEST
 24 HR. TOTAL    0.86   09/21 TO 09/21

DEGREE_DAYS
HEATING TOTAL     343               353     -10      269
 SINCE 7/1        473               534     -61      480
COOLING TOTAL      11                11       0        7
 SINCE 1/1        242               192      50       86
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.8
HIGHEST WIND SPEED/DIRECTION    29/350    DATE  09/21
HIGHEST GUST SPEED/DIRECTION    38/360    DATE  09/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY         11

AVERAGE RH (PERCENT)     79

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP                0
HEAVY RAIN                5     RAIN                        7
LIGHT RAIN               20     FREEZING RAIN               0
LT FREEZING RAIN          0     HAIL                        0
HEAVY SNOW                0     SNOW                        0
LIGHT SNOW                1     SLEET                       0
FOG                      24     FOG W/VIS <= 1/4 MILE       4
HAZE                      1

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

$$

.SEPTEMBER 2018 WAS WARMER THAN NORMAL WITH ABOVE NORMAL
PRECIPITATION AT INTERNATIONAL FALLS MN...

THE AVERAGE TEMPERATURE FOR SEPTEMBER WAS 53.8 DEGREES WHICH WAS 0.2
DEGREES ABOVE THE NORMAL OF 53.6 DEGREES. THE HIGHEST TEMPERATURE
FOR THE MONTH WAS 87 DEGREES ON THE 16TH. THE LOWEST TEMPERATURE WAS
27 DEGREES ON THE 16TH. TWO DAILY TEMPERATURE RECORDS WERE BROKEN
FOR THE MONTH. ON THE 6TH A RECORD LOW TEMPERATURE OF 28 DEGREES WAS
SET. THIS BROKE THE PREVIOUS RECORD OF 33 DEGREES SET IN 1956. ON
THE 16TH A RECORD HIGH TEMPERATURE OF 87 DEGREES WAS SET. THIS BROKE
THE PREVIOUS RECORD OF 85 DEGREES SET IN 1911 AND TIED IN 1922.
SIXTEEN DAYS HAD AVERAGE TEMPERATURES BELOW NORMAL.

SEPTEMBER 2018 WAS ABOVE NORMAL FOR PRECIPITATION WITH A TOTAL OF
3.66 INCHES OF PRECIPITATION RECORDED FOR THE MONTH. THIS WAS 0.67
INCHES ABOVE THE NORMAL OF 2.99 INCHES. THE GREATEST AMOUNT OF
PRECIPITATION IN A 24 HOUR PERIOD OCCURRED ON THE 21ST WHEN 0.86
INCHES WAS RECORDED. AT LEAST A TRACE OF PRECIPITATION WAS RECORDED
ON 21 DAYS. AT LEAST 0.01 INCHES FELL ON 17 DAYS. AT LEAST 0.10
INCHES FELL ON 8 DAYS. AT LEAST 0.50 INCHES FELL ON 3 DAYS. NO DAILY
PRECIPITATION RECORDS WERE BROKEN FOR THE MONTH.

THE AVERAGE WIND SPEED FOR THE MONTH WAS 6.8 MPH. THE WINDIEST DAY
FOR THE MONTH WAS ON THE 23RD WITH AN AVERAGE WIND OF 13.1 MPH. THE
HIGHEST SUSTAINED WIND OCCURRED ON THE 21ST WITH A SPEED OF 29 MPH
OUT OF THE NORTH. A PEAK GUST OF 38 MPH WAS RECORDED ON THE 16TH AND
THE 21ST.

THERE WERE 343 HEATING DEGREE DAYS FOR THE MONTH WHICH WAS 10 BELOW
THE NORMAL OF 353. THIS BROUGHT THE SEASONAL TOTAL TO 473 WHICH WAS
61 BELOW THE NORMAL OF 534. THERE WERE 11 COOLING DEGREE DAYS FOR
THE MONTH WHICH WAS NORMAL. THE SEASONAL TOTAL COOLING DEGREE DAYS
STANDS AT 242 WHICH IS 50 ABOVE THE NORMAL OF 192.

THE OUTLOOK FOR OCTOBER...NORMAL HIGHS BEGIN THE MONTH IN THE UPPER
50S AND COOL TO THE LOW 40S BY THE END OF THE MONTH. NORMAL LOWS
BEGIN THE MONTH IN THE MID 30S AND COOL TO THE MID 20S BY THE END OF
THE MONTH. NORMAL PRECIPITATION FOR OCTOBER IS 2.08 INCHES. NORMAL
SNOWFALL FOR OCTOBER IS 2.2 INCHES. THE LATEST CLIMATE PREDICTION
CENTER OUTLOOK INDICATES THAT ODDS ARE TILTED TOWARD BELOW NORMAL
TEMPERATURES AND ABOVE NORMAL PRECIPITATION.

$$

WL



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