Climatological Report (Seasonal)
Issued by NWS Duluth, MN

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CXUS53 KDLH 021526
CLSDLH


CLIMATE REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1020 AM CDT SAT SEP 2 2017

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

...THE DULUTH CLIMATE SUMMARY FOR THE SEASON, FROM
6/1/2017 TO 8/31/2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1870 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH             106   07/13/1936
 LOW               18   06/25/2015
HIGHEST            88   06/10        MM      MM       90
LOWEST             40   06/06        MM      MM       37
                        06/01
MEAN             62.5              63.4    -0.9     65.3

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        20.91   1873
TOTALS          16.55             11.78    4.77    13.81

SNOWFALL (INCHES)
SINCE 7/1           T

DEGREE_DAYS
HEATING TOTAL     301               329     -28      196
COOLING TOTAL     100               186     -86      258
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.1
HIGHEST WIND SPEED/DIRECTION    37/260
HIGHEST GUST SPEED/DIRECTION    48/240

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM



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

$$

.THE 2017 SUMMER SEASON WAS COOLER AND WETTER THAN NORMAL AT DULUTH
MN...

THE AVERAGE TEMPERATURE FOR THE SUMMER SEASON WAS 62.5 DEGREES WHICH
WAS 0.9 DEGREES BELOW THE NORMAL OF 63.4 DEGREES. THE HIGHEST
TEMPERATURE FOR THE SUMMER WAS 88 DEGREES ON JUNE 10TH. THE LOWEST
TEMPERATURE FOR THE SUMMER WAS 40 DEGREES ON JUNE 1ST AND JUNE 6TH.
NO MONTHLY TEMPERATURE RECORDS WERE BROKEN THIS SUMMER.

THE SUMMER OF 2017 WAS ABOVE NORMAL FOR PRECIPITATION WITH A TOTAL
OF 16.55 INCHES OF PRECIPITATION WAS RECORDED FOR THE SEASON. THIS
WAS 4.77 INCHES ABOVE THE NORMAL OF 11.78 INCHES...MAKING THIS THE
13TH WETTEST SUMMER ON RECORD. THE GREATEST AMOUNT OF PRECIPITATION
IN A 24 HOUR PERIOD OCCURRED ON JUNE 28TH TO JUNE 29TH WHERE 2.13
INCHES WAS RECORDED. AT LEAST 0.01 INCHES OF PRECIPITATION FELL ON
41 DAYS. AT LEAST 0.10 INCHES FELL ON 28 DAYS. AT LEAST 0.50 INCHES
FELL ON 11 DAYS. AT LEAST 1 INCH FELL ON 7 DAYS. NO MONTHLY
PRECIPITATION RECORDS WERE BROKEN THIS SUMMER...HOWEVER IT WAS THE
7TH WETTEST AUGUST IN STATION HISTORY WITH A TOTAL OF 7.23 INCHES
RECORDED.

THE AVERAGE WIND SPEED FOR THE SUMMER WAS 8.1 MPH. THE HIGHEST
SUSTAINED WIND OCCURRED ON JUNE 10TH AND JULY 6TH WITH A SPEED OF 37
MPH. THE HIGHEST PEAK WIND GUST OCCURRED ON JUNE 10TH WITH A SPEED
OF 48 MPH.

THERE WERE 301 HEATING DEGREE DAYS FOR THE SUMMER WHICH WAS 28 BELOW
THE NORMAL OF 329. THERE WERE 100 COOLING DEGREE DAYS FOR THE SUMMER
WHICH WAS 86 BELOW THE NORMAL OF 186. THE HIGHEST SEA LEVEL PRESSURE
READING FOR THE SUMMER WAS 30.34 INCHES REACHED ON AUGUST 31ST AND
THE LOWEST SEA LEVEL PRESSURE READING WAS 29.34 INCHES REACHED ON
JUNE 10TH.

THE OUTLOOK FOR FALL...NORMAL HIGHS START IN THE LOW 70S IN EARLY
SEPTEMBER AND COOL TO THE LOW 30S BY THE END OF NOVEMBER. NORMAL
LOWS START IN THE MID 50S IN EARLY SEPTEMBER AND COOL TO THE UPPER
TEENS BY THE END OF NOVEMBER. NORMAL PRECIPITATION FOR THE FALL IS
8.17 INCHES. NORMAL SNOWFALL FOR THE FALL IS 16.1 INCHES. THE LATEST
CLIMATE PREDICTION CENTER OUTLOOK INDICATES THAT ODDS ARE TILTED
TOWARDS ABOVE NORMAL TEMPERATURES AND THERE IS NO CLEAR INDICATION
FOR ABOVE OR BELOW NORMAL PRECIPITATION.

$$

WL



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