October 2009 PNS

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.

$$