September 2005 was one of the warmest Septembers of record and very dry rainfall wise for the month. Even though Fall officially began September 22nd this year, the hottest days of 2005 showed up September 25th to the 28th. September 25th to 28th, 2005 was the warmest 4 day period of record for late September since the late 1800s. Some of the record highs exceeded the old daily records by several degrees. The warmest day for the Fall Season of Record was established September 25 at Austin Mabry with 107, Austin Bergstrom with 108, Del Rio with 107, and San Antonio with 105. On the 26th, Austin Mabry's high of 107 tied the high for the 25th, making September 25 and 26, 2005 the warmest for the Fall Season at Austin Mabry.

The 4 day stretch of record breaking temperatures from Septebmer 25th to 28th, 2005 comes just 5 years from another historic record breaking stretch of hot days from September 1st to 6th, 2000. In early September 2000, All Time Highs of Climate Record was established at Austin Bergstrom and Austin Mabry with 112 September 5, 2000 and at San Antonio with 111 September 5, 2000. September Highs were established Septmber 5th also at Austin and San Antonio, and on September 6, 2000 at Del Rio, when the highs was 110.

The hot weather in late September 2005 was similar to what occurred in late September 1953. On October 2, 1938 Austin had a high of 100, a record high for October at Austin, and it was the only 100 degree day and warmest day of 1938 in Austin. Other unseasonably warm events in early Fall came in early October of 1979, when Del Rio had highs of 101 October 1; 99 October 2, and 106 October 3, 1979. On October 3, 1979 San Antonio had a high of 98; Austin Mueller Airport 97; and Austin Bergstrom 96. Another period of unseasonably warm days when a high aloft got strong over South Central Texas was in October 1991. On the weekend of October 12 and 13, 1991 highs were in the mid to upper 90s. On October 12, 1991 San Antonio had a high of 99; Austin Mueller Airport 98; Austin Bergstrom 97; and Del Rio 95. On October 13, 1991 San Antonio had a high of 97; Austin Bergstrom 98; Austin Mueller Airport 97; and Del Rio 94.

SEPTEMBER 2005 CLIAMTE INFORMATION FOLLOWS.

THE AVERAGE SEPTEMBER TEMPERATURE FOR SEPTEMBER 2005 SHOWS
SEPTEMBER 2005...AS THE WARMEST OF RECORD AT AUSTIN BERGSTROM
AND AUSTIN MABRY...THE 2ND WARMEST AT SAN ANTONIO...AND THE 3RD
WARMEST AT DEL RIO.

THE LIST BELOW SHOWS THE WARMEST SEPTEMBERS OF
CLIMATE RECORD...USING THE AVERAGE MONTHLY TEMPERATURE.

AUSTIN BERGSTROM...

THE WARMEST SEPTEMBERS OF RECORD AT AUSTIN BERGSTROM INTERNATIONAL
AIRPORT...OCTOBER 1942 TO PRESENT

 1.  84.1 SEPTEMBER 2005
 2.  83.8 SEPTEMBER 1954
 3.  83.3 SEPTEMBER 1977
 4.  82.6 SEPTEMBER 1956
 5.  82.3 SEPTEMBER 1985
 5.  82.3 SEPTEMBER 1955
 7.  82.0 SEPTEMBER 1980
 8.  81.9 SEPTEMBER 1972
 8.  81.9 SEPTEMBER 1969
10.  81.7 SEPTEMBER 1986
11.  81.4 SEPTEMBER 1959
12.  81.3 SEPTEMBER 1988
12.  81.3 SEPTEMBER 1951

AUSTIN MABRY...
THE WARMEST SEPTEMBERS OF RECORD AT AUSTIN MABRY...1854 TO PRESENT

 1.  84.4 SEPTEMBER 2005
 2.  84.2 SEPTEMBER 1911
 3.  83.6 SEPTEMBER 1977
 4.  83.4 SEPTEMBER 1935
 5.  83.2 SEPTEMBER 1984
 6.  83.1 SEPTEMBER 1931
 7.  82.9 SEPTEMBER 1998
 8.  82.5 SEPTEMBER 1926
 9.  82.4 SEPTEMBER 1972
 9.  82.4 SEPTEMBER 1954
11.  82.2 SEPTEMBER 1955
12.  82.0 SEPTEMBER 1986
12.  82.0 SEPTEMBER 1963

SAN ANTONIO...

THE WARMEST SEPTEMBERS OF RECORD AT SAN ANTONIO...
1871 TO PRESENT

 1.  84.6 SEPTEMBER 1911
 2.  84.3 SEPTEMBER 2005
 3.  83.7 SEPTEMBER 1986
 3.  83.7 SEPTEMBER 1980
 5.  83.3 SEPTEMBER 1931
 6.  82.9 SEPTEMBER 1933
 7.  82.6 SEPTEMBER 1954
 8.  82.5 SEPTEMBER 1926
 8.  82.5 SEPTEMBER 1900
10.  82.3 SEPTEMBER 1977
11.  82.2 SEPTEMBER 1997
12.  82.1 SEPTEMBER 1920

DEL RIO...

THE WARMEST SEPTEMBERS OF RECORD AT DEL RIO...
DECEMBER 1905 TO PRESENT

 1.  86.8 SEPTEMBER 1911
 2.  85.8 SEPTEMBER 1977
 3.  85.4 SEPTEMBER 2005
 4.  83.8 SEPTEMBER 1921
 5.  83.6 SEPTEMBER 1980
 5.  83.6 SEPTEMBER 1997
 7.  83.5 SEPTEMBER 1954
 7.  83.5 SEPTEMBER 1933
 7.  83.5 SEPTEMBER 1930
10.  83.3 SEPTEMBER 1931
10.  83.3 SEPTEMBER 1926
12.  82.9 SEPTEMBER 2000

IN ADDITION TO HAVING SOME OF THE WARMEST AVERAGE MONTHLY
TEMPERATURES...THE AVERAGE DAILY HIGHS ARE ALSO AMONG THE
WARMEST OF RECORD.

THE AVERAGE DAILY HIGHS FOR AUSTIN IN SEPTEMBER 2005
ARE THE WARMEST SEPTEMBER DAILY HIGHS OF RECORD.  THE LIST
BELOW SHOWS THE WARMEST DAILY HIGHS OF RECORD AT AUSTIN.

AUSTIN MABRY WARMEST DAILY HIGHS

1. 95.9 SEPTEMBER 2005
2. 94.9 SEPTEMBER 1926
3. 94.6 SEPTEMBER 1954
3. 94.6 SEPTEMBER 1956
5. 94.5 SEPTEMBER 2000

AUSTIN BERGSTROM WARMEST DAILY HIGHS

1. 97.5 SEPTEMBER 2005
2. 95.4 SEPTEMBER 1954
3. 95.2 SEPTEMBER 2000
4. 94.8 SEPTEMBER 1956
5. 93.8 SEPTEMBER 1977

THE AVERAGE DAILY HIGH OF 95.4 AT SAN ANTONIO FOR SEPTEMBER 2005
WAS THE WARMEST SEPTEMBER DAILY HIGH OF RECORD AT SAN ANTONIO.
THE LIST BELOW SHOWS THE WARMEST DAILY HIGHS OF RECORD AT
SAN ANTONIO.

SAN ANTONIO WARMEST DAILY HIGHS

1. 95.4 SEPTEMBER 2005
2. 94.8 SEPTEMBER 1911
3. 94.6 SEPTEMBER 1954
4. 94.5 SEPTEMBER 2000
5. 94.0 SEPTEMBER 1993

THE AVERAGE DAILY HIGH OF 97.8 AT DEL RIO FOR SEPTEMBER 2005
WAS THE 3RD WARMEST SEPTEMBER DAILY HIGH OF RECORD AT
DEL RIO.  THE LIST BELOW SHOWS THE WARMEST DAILY HIGHS
OF RECORD AT DEL RIO.

DEL RIO WARMEST DAILY HIGHS

1. 98.6 SEPTEMBER 1977
2. 98.4 SEPTEMBER 1911
3. 97.8 SEPTEMBER 2005
4. 96.0 SEPTEMBER 2000
5. 95.5 SEPTEMBER 1954

RECORD DAILY HIGHS AND RECORD HIGHS FOR THE FALL SEASON WERE
ESTABLISHED ON SEPTEMBER 25...2005.  THE HIGH SEPTEMBER 25TH WAS
108 AT AUSTIN BERGSTROM...107 AT AUSTIN MABRY...107 AT DEL RIO AND
105 AT SAN ANTONIO.  IN ADDITION...THE HIGHS ON SEPTEMBER 25TH
WERE THE HOTTEST DAYS FOR 2005...EXCEEDING THE HIGH FOR 2005
PREVIOUSLY OBSERVED IN EARLY JULY.  IN ADDITION...THE HIGH OF
108 AT AUSTIN BERGSTROM SEPTEMBER 25 WAS THE 4TH WARMEST DAY
OF CLIMATE RECORD AT AUSTIN BERGSTROM.  THE HIGH OF 107 AT
AUSTIN MABRY SEPTEMBER 25 AND AGAIN SEPTEMBER 26 WAS THE
10TH WARMEST DAY OF CLIMATE RECORD AT AUSTIN MABRY. 

RECORD HIGHS WERE AGAIN OBSERVED SEPTEMBER 26TH...WITH THE HIGH
OF 107 AT AUSTIN MABRY AND AUSTIN BERGSTROM.  THE 107 HIGH AT AUSTIN
MABRY TIES THE RECORD HIGH FOR FALL AND THE HIGH FOR 2005...SET
SEPTEMBER 25TH.  THE HIGH AT DEL RIO WAS 106 AND THE HIGH AT SAN
ANTONIO WAS 103...BOTH DAILY RECORDS FOR SEPTEMBER 26TH.

RECORD HIGHS WERE ESTABLISHED SEPTEMBER 27TH AT DEL RIO...WITH 104...
AND AT SAN ANTONIO...WITH 102.  THE HIGH OF 103 AT AUSTIN MABRY
ON THE 27TH TIED THE RECORD HIGH FOR SEPTEMBER 27TH...OBSERVED
IN 1953.  THE HIGH AT AUSTIN BERGSTROM SEPTEMBER 27TH WAS 104...
1 DEGREE BELOW THE SEPTEMBER 27TH RECORD OF 105 SET IN 1953.

RECORD HIGHS WERE OBSERVED SEPTEMBER 28TH FOR AUSTIN...WITH THE HIGH
OF 106 AT AUSTIN MABRY AND 105 AT AUSTIN BERGSTROM.  RECORD HIGHS
WERE ALSO ESTABLISHED FOR SEPTEMBER 28TH AT DEL RIO AND
SAN ANTONIO...WITH THE HIGH AT DEL RIO AND SAN ANTONIO OF 104.

RAINFALL WISE SEPTEMBER 2005 WAS MUCH BELOW NORMAL.

SEPTEMBER 2005 RAINFALL AT DEL RIO WAS 0.02 INCHES...2.04 INCHES
BELOW NORMAL.  ONLY 2 OTHER SEPTEMBERS HAVE BEEN DRIER AT DEL RIO
THAN SEPTEMBER 2005...AND THEY WERE IN SEPTEMBER 1931 AND 1999...
WHEN A TRACE WAS OBSERVED.

DRIEST SEPTEMBERS OF RECORD AT DEL RIO
DECEMBER 2005 TO PRESENT

 1.  TRACE SEPTEMBER 1931
 1.  TRACE SEPTEMBER 1999
 3.  0.02 SEPTEMBER 2005
 4.  0.04 SEPTEMBER 1930
 4.  0.04 SEPTEMBER 1952
 6.  0.09 SEPTEMBER 1907

AUSTIN BERGSTROM HAD 0.52 INCHES...THE 5TH DRIEST SEPTEMBER
OF RECORD...AND 2.36 INCHES BELOW NORMAL.  

DRIEST SEPTEMBERS OF RECORD AT AUSTIN BERGSTROM INTERNATIONAL
AIRPORT...OCTOBER 1942 TO PRESENT

 1.  0.02 SEPTEMBER 1989
 2.  0.11 SEPTEMBER 1956
 3.  0.47 SEPTEMBER 1999
 4.  0.49 SEPTEMBER 1993
 5.  0.52 SEPTEMBER 2005

RAINFALL AT AUSTIN MABRY WAS 1.44 INCHES...1.47 INCHES BELOW NORMAL.
THIS WAS NOT IN THE TOP 10 DRIEST FOR SEPTEMBER.  THE 10TH DRIEST
SEPTEMBER WAS 0.34 INCHES IN SEPTEMBER 1993.

DRIEST SEPTEMBERS OF RECORD AT AUSTIN MABRY
1856 TO PRESENT

 1.  0.00 SEPTEMBER 1872
 2.  TRACE SEPTEMBER 1903
 3.  0.02 SEPTEMBER 1931
 4.  0.07 SEPTEMBER 1947
 5.  0.09 SEPTEMBER 1956

SAN ANTONIO HAD 1.39 INCHES OF RAIN...1.61 INCHES BELOW NORMAL.
THIS WAS NOT IN THE TOP 10 DRIEST FOR SEPTEMBER.  THE 10TH DRIEST
SEPTEMBER WAS 0.51 INCHES IN SEPTEMBER 1975.

DRIEST SEPTEMBERS OF RECORD AT SAN ANTONIO
1871 TO PRESENT

 1.  0.01 SEPTEMBER 1931
 2.  0.04 SEPTEMBER 1937
 3.  0.05 SEPTEMBER 1872
 4.  0.06 SEPTEMBER 1947
 4.  0.06 SEPTEMBER 1999
 6.  0.10 SEPTEMBER 1893

On September 29, 2005, a cool front moved across the area and brought much cooler conditions; however, this did not last long, as a warming trend quickly followed by September 30, and continued through the early part of October 2005. The first 5 days of October 2005 was warm and dry, with summerlike afternoon highs and overnight lows. The average highs and lows were as follows for October 1 to 5, 2005.

  Location           Average    Average    
                      High        Low   

Austin Mabry          94.0        74.2
Austin Bergstrom      94.8        70.4
Del Rio               93.0        74.2
San Antonio           93.6        74.2