PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
550 PM MST FRI JUN 19 2009
...SUB-100 DEGREE STREAK CONTINUES AT PHOENIX SKY HARBOR...
FOR FIFTEEN CONSECUTIVE DAYS THIS MONTH...DAYTIME HIGH TEMPERATURES HAVE
REMAINED BELOW 100 DEGREES AT PHOENIX SKY HARBOR AIRPORT. THE CURRENT
STREAK OF SUB-100 DEGREE DAYS COMMENCED ON 5 JUNE. THIS TIES FOR THE
THIRD-LONGEST SUB-100 DEGREE STREAK EVER OBSERVED DURING THE MONTH OF
JUNE. THE LONGEST STREAK OF SUB-100 DEGREE DAYS FOR PHOENIX DURING
JUNE...17 DAYS...OCCURRED FROM 1 JUNE TO 17 JUNE IN 1913. DAYTIME
HIGH TEMPERATURE DATA FOR PHOENIX EXIST FROM 1896 TO PRESENT DAY.
THE AVERAGE DAILY HIGH TEMPERATURE DURING OUR CURRENT 15-DAY
SUB-100 DEGREE STRETCH...95.2 DEGREES...WAS FOURTH COOLEST ON
RECORD. THE COOLEST AVERAGE DAYTIME HIGH FOR 5-19 JUNE...91.8
DEGREES...OCCURRED IN 1967. INTERESTINGLY...THE THIRD COOLEST 5-19
JUNE OCCURRED ONLY 11 YEARS AGO...IN 1998...WHEN THE AVERAGE DAILY
HIGH TEMPERATURE WAS 95.1 DEGREES.
ALTHOUGH THE CURRENT STREAK OF SUB-100 DEGREE DAYS IN JUNE IS
IMPRESSIVE...IT IS NOT UNUSUAL TO EXPERIENCE SUB-100 DEGREE HIGH
TEMPERATURES IN JUNE. THE LONG TERM AVERAGE NUMBER OF SUB-100 DEGREE
DAYS IN JUNE IS 9...ALTHOUGH THAT NUMBER LOWERS TO 6 IF THE CONSIDERED
PERIOD IS SHORTENED TO 1971-2008. IN ADDITION TO JUNE 2009...RECENT
JUNES WITH AN ABOVE-NORMAL NUMBER OF SUB-100 DEGREE DAYS IN PHOENIX
INCLUDE 1995 WITH 12 DAYS...1997 WITH 11 DAYS...1998 WITH 14
DAYS...1999 WITH 11 DAYS...AND 2005 WITH 10 DAYS. ON THE OPPOSITE
SIDE OF THE LEDGER...SINCE 2000...5 OR FEWER SUB-100 DEGREE JUNE DAYS
OCCURRED IN ALL BUT TWO JUNES...JUNE 2005 AND JUNE 2009...AND NO
SUB-100 DEGREE JUNE DAYS OCCURRED IN 2006.