Cool October, literally

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
750 AM CST SUN NOV 1 2009

..COLDEST OCTOBER ON RECORD AT TULSA INTERNATIONAL AIRPORT

THE AVERAGE MONTHLY TEMPERATURE AT THE TULSA INTERNATIONAL AIRPORT
FOR OCTOBER 2009 WAS 55.9 DEGREES WHICH WAS 6.7 DEGREES BELOW
NORMAL. THIS TIES WITH OCTOBER 1925 FOR THE COLDEST OCTOBER ON
RECORD. THE DAILY HIGH TEMPERATURES WERE THE PRIMARY FACTOR IN THIS
RECORD SETTING EVENT. THE OBSERVED AVERAGE DAILY MAXIMUM TEMPERATURE
OF 64.5 DEGREES WAS 9.5 DEGREES BELOW NORMAL…WHILE THE DAILY
AVERAGE MINIMUM OF 47.2 DEGREES FELL SHORT BY 3.9 DEGREES. THERE
WERE 8 DAYS IN THE MONTH WHERE THE AVERAGE DAILY TEMPERATURE WAS AT
OR ABOVE NORMAL…WITH THE REMAINING 23 DAYS FALLING BELOW NORMAL BY
-5 TO -18 DEGREES. THE WARMEST TEMPERATURE WAS 84 DEGREES OCCURRED
ON THE FIRST DAY OF THE MONTH…WITH THE COLDEST READING OF 35
DEGREES OBSERVED ON THE 18TH OF OCTOBER. THERE WERE 284 HEATING
DEGREES DAYS DURING THE MONTH WHICH WAS ABOVE NORMAL BY 132 DEGREES.

OCTOBER 2009 WAS ALSO WETTER THAN NORMAL FOR TULSA BY 2.09 INCHES.
THOUGH REMARKABLE…THIS ONLY RANKED AS THE 21ST WETTEST OCTOBER ON
RECORD. THERE WERE 20 DAYS DURING THE MONTH WITH A TRACE OR MORE OF
PRECIPITATION AND 14 DAYS WITH .01 OR MORE. THE AVERAGE NUMBER OF
RAIN DAYS FOR OCTOBER IS 7.3. THE MAXIMUM 24 HOUR RAINFALL OF 2.85
INCHES OCCURRED BETWEEN THE 8 AND 9TH OF THE MONTH.

..3RD WETTEST AND 7TH COLDEST OCTOBER FOR FORT SMITH

OCTOBER 2009 WAS ALSO A RECORD MONTH AT THE FORT SMITH REGIONAL
AIRPORT. THE MONTHLY RAINFALL OF 10.26 INCHES PUTS OCTOBER 2009 AT
THE 3RD WETTEST ON RECORD…SURPASSING THE MONTHLY NORMAL RAINFALL
BY 6.32 INCHES. PRECIPITATION OCCURRED ON 19 OF THE 31 DAYS…WHILE
THE AVERAGE NUMBER OF RAIN DAYS FOR OCTOBER IS 8. THERE WERE 12 DAYS
WITH A TENTH OF AN INCH OR MORE…7 DAYS WITH A HALF INCH OR
MORE…AND 5 DAYS WITH OBSERVED RAINFALL OF ONE INCH OR MORE. THE
MAXIMUM 24 HOUR RAINFALL WAS 3.70 INCHES OCCURRING BETWEEN THE 8TH
AN 9TH DAYS OF THE MONTH. THE WETTEST OCTOBER ON RECORD IS 12.05
INCHES OCCURRING IN 1951…AND OCTOBER 1984 THE SECOND WETTEST WITH
11.80 INCHES.

OCTOBER 2009 WAS ALSO THE 7TH COLDEST ON RECORD AT FORT SMITH WITH
AN AVERAGE DAILY TEMPERATURE OF 58.4 DEGREES WHICH WAS 4.4 DEGREES
BELOW NORMAL. THE AVERAGE DAILY MAXIMUM TEMPERATURE OF 67.1 DEGREES
WAS 7.9 DEGREES BELOW NORMAL…WHILE THE AVERAGE DAILY MINIMUM FELL
SHORT BY ONLY 0.8 DEGREES. THERE WERE ONLY 7 DAYS DURING THE MONTH
WHERE THE AVERAGE DAILY TEMPERATURE WAS AT OR ABOVE NORMAL…WHILE
THE RANGE OF BELOW NORMAL FOR THE REMAINING 24 DAYS WAS BETWEEN -1
AND -14. THE WARMEST READING FOR THE MONTH WAS 88 DEGREES WHICH
OCCURRED ON THE 8TH…WITH THE COLDEST READING OF 38 DEGREES
OBSERVED ON THE 18TH OF OCTOBER. THERE WERE 216 HEATING DEGREE DAYS
WHICH WAS ABOVE THE MONTHLY NORMAL BY 71 DEGREES.

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About Putnam Reiter

Putnam has been storm chasing since 1990 and is a co-founder of Hook-Echo.com. For his day job, Putnam works in emergency management for information technology.
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