First heat wave of the summer ending today

  • A cold front will move southeast across our region by this afternoon, bringing an end to the oppressive heat and humidity. Night time lows will be noticeably cooler, and humidity levels will be rather low for this time of year.
  • Scattered thunderstorms will accompany the passage of the front.

Statistics on this first heat wave of the summer:

  • Through and including Saturday, the high temperature reached or exceeded 90 degrees on 11 consecutive days at Paducah and Poplar Bluff and 9 consecutive days at Evansville.
  • On Friday and Saturday, the heat index peaked between 105 and 110 at Paducah and Poplar Bluff. 
  • How does this compare to past Junes?   The following table lists the number of 90-degree days (not necessarily consecutive) so far this month, the most recent year that number was exceeded, and the record for June:
    90-degree days in June
    City So far this month Most recent year exceeded Record
    Paducah 13 2002: 15 27 in 1952
    Evansville 13 1994: 16 24 in 1952
  • What is a heat wave? There is no universally agreed upon definition of a heat wave. What constitutes a heat wave may vary from one part of the world to the next. For most of the U.S., the "standard" definition of a heat wave is three or more consecutive days of highs reaching at least 90 degrees. Using this definition, heat waves are quite common in our part of the country during the summer. The normal high (based on 1970-2000 data) at Paducah is 89 degrees from July 13 to August.6.

The following is a Public Information Statement

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
643 PM CDT FRI JUN 26 2009

...THE HEAT WAVE CONTINUES OVER THE QUAD STATE AREA...

TEMPERATURES CONTINUE TO AVERAGE 5 TO 10 DEGREES ABOVE NORMAL IN
MANY COMMUNITIES THROUGHOUT SOUTHEAST MISSOURI...SOUTHERN
ILLINOIS...SOUTHWEST INDIANA AND WEST KENTUCKY. ALTHOUGH THE
UNSEASONABLY HIGH TEMPERATURES HAVE BEEN WITH US FOR SEVERAL
DAYS...IT IS NOT COMING CLOSE TO ANY CONSECUTIVE DAYS RECORD.
BELOW ARE SOME STATISTICS FOR A FEW COMMUNITIES:

AREA: CURRENT RUN   CONSECUTIVE DAY RECORD

PADUCAH          10 DAYS          38 DAYS ENDING AUG  4 1993
EVANSVILLE        8 DAYS          31 DAYS ENDING AUG 30 2007
CAPE GIRARDEAU   10 DAYS          30 DAYS ENDING AUG 25 2007
CARBONDALE       10 DAYS          52 DAYS ENDING AUG  3 1921
POPLAR BLUFF     10 DAYS          36 DAYS ENDING JUL  9 1952

AS OF JUNE 25TH...PADUCAH WAS TIED FOR THE 7TH WARMEST JUNE ON
RECORD AT 77.7 DEGREES...WHICH WAS ALSO SET IN JUNE 2002. THE
WARMEST JUNE ON RECORD WAS SET IN 1952 AT 83.3 DEGREES.

AS OF JUNE 25TH...EVANSVILLE HAS AN AVERAGE MONTHLY TEMPERATURE OF
76.3 DEGREES...WHICH IS NOT IN THE TOP 10 HIGHEST MONTHLY JUNE
TEMPERATURES FOR THE COMMUNITY. THE 10TH WARMEST JUNE FOR EVANSVILLE
WAS 78.4 DEGREES SET IN 1911 AND THE WARMEST JUNE ON RECORD IS
81.1 DEGREES SET IN 1952.


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