September 2010 Climate Summary

.SEPTEMBER 2010 WAS COOLER AND DRIER THAN NORMAL AT DULUTH MN...

THE AVERAGE TEMPERATURE FOR SEPTEMBER WAS 52.0 DEGREES WHICH WAS 2.7
DEGREES COOLER THAN THE NORMAL OF 54.7 DEGREES. THIS IS THE 14TH
COOLEST SEPTEMBER IN RECORDED HISTORY. THE HIGHEST TEMPERATURE FOR
THE MONTH WAS 73 DEGREES ON THE 1ST. THE LOWEST TEMPERATURE WAS 31
DEGREES ON THE 26TH. NO TEMPERATURE RECORDS WERE SET FOR THE MONTH.

SEPTEMBER 2010 WAS BELOW NORMAL FOR PRECIPITATION WITH A TOTAL OF
3.48 INCHES RECORDED FOR THE MONTH. THIS IS 0.65 INCHES BELOW THE
NORMAL OF 4.13 INCHES. THE GREATEST AMOUNT OF PRECIPITATION IN A 24
HOUR PERIOD OCCURRED ON THE 23RD TO THE 24TH WHEN 1.11 INCHES WAS
REPORTED. NO SNOW FELL IN SEPTEMBER. THIS IS 0.1 INCHES BELOW THE
NORMAL OF 0.1 INCHES. AT LEAST A TRACE OF RAIN WAS REPORTED ON 15
DAYS. AT LEAST 0.01 INCHES OF RAIN FELL ON 13 DAYS. AT LEAST 0.10
INCHES FELL ON 10 DAYS. AT LEAST 0.50 INCHES FELL ON 2 DAYS. NO
DAILY PRECIPITATION RECORDS WERE SET DURING THE MONTH OF SEPTEMBER. 

THE AVERAGE WIND SPEED FOR THE MONTH WAS 9.8 MPH. THE WINDIEST DAY
FOR THE MONTH WAS ON THE 23RD WITH AN AVERAGE WIND SPEED OF 18.9
MPH. THE GREATEST SUSTAINED WINDS OCCURRED ON THE 2ND WITH A WIND
OUT OF THE EAST AT 41 MPH ON. THERE WAS A PEAK GUST OF 52 MPH FROM
THE EAST RECORDED ON THE 2ND. THERE WERE 384 HEATING DEGREE DAYS FOR
THE MONTH WHICH WAS 53 ABOVE THE NORMAL OF 331...THIS BROUGHT THE
SEASONAL TOTAL TO 426 WHICH WAS 80 BELOW THE NORMAL OF 506. THERE
WERE 0 COOLING DEGREE DAYS FOR THE MONTH WHICH WAS 12 DEGREES BELOW
THE NORMAL OF 12. THE SEASONAL TOTAL COOLING DEGREE DAYS REMAIN AT
310 WHICH IS 121 DEGREES ABOVE THE NORMAL OF 189. THE HIGHEST
BAROMETRIC PRESSURE READING FOR THE MONTH WAS 30.33 INCHES REACHED
ON THE 26TH AND THE LOWEST BAROMETRIC PRESSURE READING WAS 29.39
INCHES REACHED ON THE 23RD.

THE OUTLOOK FOR OCTOBER...NORMAL HIGHS BEGIN IN THE UPPER 50S ON THE
1ST AND COOL TO THE MID 40S AT THE END OF THE MONTH. NORMAL LOWS
RANGE FROM 40 DEGREES ON THE 1ST AND COOL TO THE UPPER 20S ON THE
31ST. NORMAL PRECIPITATION FOR OCTOBER IS 2.46 INCHES. NORMAL
SNOWFALL FOR OCTOBER IS 1.5 INCHES. ABOVE NORMAL TEMPERATURES AND
NEAR NORMAL PRECIPITATION ARE EXPECTED IN OCTOBER.


.SEPTEMBER 2010 WAS MUCH COOLER AND WETTER THAN NORMAL AT
INTERNATIONAL FALLS MN...

THE AVERAGE TEMPERATURE FOR SEPTEMBER WAS 49.9 DEGREES WHICH WAS
3.3  DEGREES COOLER THAN THE NORMAL OF 53.2 DEGREES. THIS IS THE 4TH
COOLEST SEPTEMBER IN STATION HISTORY. THE HIGHEST TEMPERATURE FOR
THE MONTH WAS 75 DEGREES ON THE 1ST. THE LOWEST TEMPERATURE WAS 30
DEGREES ON THE 16TH. NO TEMPERATURE RECORDS WERE SET FOR THE MONTH. 

SEPTEMBER 2010 PRECIPITATION WAS MUCH ABOVE NORMAL WITH A TOTAL OF
6.02 INCHES RECORDED FOR THE MONTH. THIS IS 2.99 INCHES ABOVE THE
NORMAL OF 3.03 INCHES. IT WAS ALSO THE 6TH WETTEST SEPTEMBER IN
RECORDED HISTORY. THE GREATEST AMOUNT OF PRECIPITATION IN A 24 HOUR
PERIOD OCCURRED ON THE 23RD TO THE 24TH WHEN 2.59 INCHES OF RAIN WAS
REPORTED. NO SNOW FELL IN SEPTEMBER. THIS IS 0.1 INCHES BELOW THE
NORMAL OF 0.1 INCHES. AT LEAST A TRACE OF RAIN WAS REPORTED ON 19
DAYS. AT LEAST 0.01 INCHES OF RAIN FELL ON 15 DAYS. AT LEAST 0.10
INCHES OF RAIN FELL ON 9 DAYS. AT LEAST 0.50 INCHES OF RAIN FELL ON
4 DAYS. AT LEAST 1.00 OF RAIN FELL ON 2 DAYS. TWO DAILY
PRECIPITATION RECORDS WERE SET FOR THE MONTH. 0.83 INCHES OF RAIN
FELL ON THE 23RD BREAKING THE OLD RECORD OF 0.71 INCHES SET IN 1942.
ON THE 24TH 1.82 INCHES OF RAIN FELL BREAKING THE OLD RECORD OF
0.90 INCHES SET IN 1912.

THE AVERAGE WIND SPEED FOR THE MONTH WAS 7.2 MPH. THE WINDIEST DAY
FOR THE MONTH WAS ON THE 3RD WITH AN AVERAGE WIND SPEED OF 13.3 MPH.
MAXIMUM SUSTAINED WINDS OF 25 MPH FROM THE NORTH WAS REPORTED ON THE
3RD WITH A PEAK GUST OF 36 MPH FROM THE NORTH. THERE WERE 446
HEATING DEGREE DAYS FOR THE MONTH WHICH WAS 86 ABOVE THE NORMAL OF
360...THIS BRINGS THE SEASONAL TOTAL TO 551 WHICH IS 34 ABOVE THE
NORMAL OF 517. THERE WERE 0 COOLING DEGREE DAYS FOR THE MONTH WHICH
WAS 10 BELOW THE NORMAL OF 10. THE SEASONAL TOTAL COOLING DEGREE
DAYS REMAINS AT 207 WHICH IS 26 BELOW THE NORMAL OF 233. THE HIGHEST
BAROMETRIC PRESSURE READING FOR THE MONTH WAS 30.32 INCHES REACHED
ON THE 19TH AND THE LOWEST BAROMETRIC PRESSURE READING WAS 29.50
INCHES REACHED ON THE 24TH.

THE OUTLOOK FOR OCTOBER...NORMAL HIGHS FOR THE MONTH RANGE FROM THE
UPPER 50S ON THE 1ST AND COOL TO THE LOWER TO MID 40S BY MONTHS END.
NORMAL LOWS RANGE FROM THE MID TO UPPER 30S ON THE 1ST COOLING TO
THE MID 20S ON THE 31ST. NORMAL PRECIPITATION FOR OCTOBER IS 1.98
INCHES. NORMAL SNOWFALL FOR OCTOBER IS 1.9 INCHES. ABOVE NORMAL
TEMPERATURES AND NEAR NORMAL PRECIPITATION ARE EXPECTED IN OCTOBER.



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