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September 2007 Weather in Review
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In September of 2007 a few heavy rain events still came notably in the
first half of September, and then the pattern turned drier in the
second half of the month.
Locally heavy rain events showed up in early September from the
1st to the 5th, and on the 11th.
In Mid to Late September, rain events decreased. These events
were of much shorter duration and less amount of rain.
Overall September ended up a little warmer than average at
most locations and was area wide drier than the previous months.
Rainfall varied considerably from wetter than
usual over the west and southwest part of South Central Texas
to drier than usual over the eastern parts of the area.
If the patterns in late September had prevailed the whole month, then
September 2007 would have been much drier than normal everywhere
across parts of Central and South Central Texas.
September 2007 Summary
Location
|
Average
Temperature
|
Average High
|
Average Low
|
Warmest/Coolest
|
Rainfall
|
|
Austin Mabry
|
81.3 +1.8
|
90.6
|
72.0
|
95 on 27th
67 on the 21st and 25th
|
3.97 +1.06
|
|
Austin Bergstrom
|
78.7 -0.8
|
90.1
|
67.3
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94 on 27th
60 on 21st and 25th
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0.73 -2.15
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|
Burnet
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78.2 +1.8
|
87.5
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68.9
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92 on 9th and 10th
63 on 21st
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1.84 -1.31
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Del Rio
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80.3 +0.3
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88.9
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71.8
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93 on 27th
67 on 2nd and 23rd
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3.49 +1.43
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|
Hondo
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78.8 +0.2
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88.7
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68.9
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92 on 14th and 27th
61 on 23rd
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1.39 -1.44
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New Braunfels
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79.8 +2.0
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90.5
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69.0
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96 on 27th
62 on 23rd and 25th
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2.41 -1.05
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San Antonio International Airport
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80.2 +0.8
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89.1
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71.4
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94 on 27th
/64 on 23rd and 25th
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1.09 -1.91
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San Antonio Stinson
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80.4 |
89.7
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71.2
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94 on 14th and 27th
63 on the 23rd and 25th
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1.29
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ALTHOUGH SEPTEMBER WAS NOT AS WET A PREVIOUS MONTHS...AND IN
SOME AREAS DRIER THAN USUAL...THE FIRST 9 MONTHS OF 2007 IS
STILL ONE OF THE WETTER FIRST 9 MONTH PERIODS.
THE WETTEST JANUARY TO SEPTEMBER PERIODS FOR AUSTIN...DEL RIO...AND
SAN ANTONIO FOLLOWS.
DEL RIO...
YEARS: 1906-2007
1. 1935 31.49
2. 2007 28.56
3. 1914 26.87
4. 1949 26.28
5. 1998 25.25
SAN ANTONIO...
YEARS: 1871-2007
1. 1973 46.98
2. 2007 45.70
3. 1957 40.30
4. 1992 39.94
5. 1946 39.57
AUSTIN MABRY...
YEARS: 1856-2007
1. 1919 50.32
2. 1921 49.08
3. 1900 45.19
4. 2007 43.99
5. 1957 38.36
AUSTIN BERGSTROM...
YEARS: 1943-2007
1. 2007 42.25
2. 1957 40.04
3. 1991 39.64
4. 1965 39.10
5. 1992 38.68
IN ADDITION...EVEN THOUGH 2007 HAS OCTOBER...NOVEMBER AND
DECEMBER LEFT...THE FIRST 9 MONTHS OF 2007 PUTS THE YEAR
IN THE RANKINGS FOR ONE OF THE WETTER CALENDAR YEARS. 2007
IS SO FAR THE 6TH WETTEST AT SAN ANTONIO...THE 8TH WETTEST
AT DEL RIO...THE 13TH WETTEST AT AUSTIN BERGSTROM AND THE
16TH WETTEST AT AUSTIN MABRY.
Click Here to see charts comparing
the 2006 and 2007 monthly rainfall and averge monthly temperature with
the latest 30 Year Normals.
Some of the warmest days of the month came on the 27th, 5 days
after the beginning of Fall this year. In some years some of
the warmest days of the year came in September, and in a few
cases they came in early October. The information below shows
the coolest and warmest average September to November periods
from previous years.
COOLEST SEPTEMBER TO NOVEMBER PERIODS
AUSTIN MABRY DEL RIO SAN ANTONIO
1. 62.2 1880 65.0 1976 63.6 1976
2. 63.7 1976 65.5 1932 65.9 1974
3. 64.3 1863 67.1 1936 66.3 1889
WARMEST SEPTEMBER TO NOVEMBER PERIODS
AUSTIN MABRY DEL RIO SAN ANTONIO
1. 75.1 1931 75.0 1931 76.0 1931
2. 73.4 1933 74.1 1933 74.6 1933
3. 73.3 2005 73.9 1927 74.5 1927
Fall rainfall trends varied from drought to flood.
September to November 2004 was one of the wetter fall
periods at Austin, Del Rio and San Antonio,
while September to November of 1999 was one of the drier Fall periods. The
Fall of 1998 was also markedly wet at Austin and San Antonio, from the heavy
rain and flood event of October 17th and 18th, 1998.
THE DRIEST AND WETTEST SEPTEMBER TO NOVEMBER PERIODS FOLLOW.
DEL RIO...DRIEST AND WETTEST SEPTEMBER TO NOVEMBER FROM 1906 TO 2006.
WETTEST DRIEST
1. 18.26 1964 1. 0.39 1999
2. 15.47 1969 2. 0.59 1938
3. 14.59 1919 3. 0.61 1921
4. 13.92 1930 4. 0.65 1931
5. 13.24 2004 5. 0.99 1917
AUSTIN MABRY...DRIEST AND WETTEST SEPTEMBER TO NOVEMBER FROM 1856 TO 2006.
WETTEST DRIEST
1. 23.19 1998 1. 1.26 1931
2. 22.57 1923 2. 2.00 1894
3. 22.43 1921 3. 2.06 1954
4. 20.70 1874 4. 2.10 1999
5. 20.29 2004 5. 2.16 1947
SAN ANTONIO...DRIEST AND WETTEST SEPTEMBER TO NOVEMBER FROM 1871 TO 2006.
WETTEST DRIEST
1. 23.05 1998 1. 1.26 1947
2. 21.39 1874 2. 1.40 1999
3. 20.85 2004 3. 1.47 1988
4. 20.62 1913 4. 1.48 1931
5. 18.95 1946 5. 2.37 1894
The outlook from the Climate Prediction Center for
October 2007 calls for the average monthly temperature and
rainfall to have Equal Chances of being above, below or near normal.
Click Here to See the Latest One Month Outlook from the Climate Prediction
Center.
October Climate Information
|
Location
|
Normal Monthly Temp.
|
Normal High
|
Normal Low
| All time High
| All time Low
|
Normal Rainfall
| All Time
Driest
| All Time
Wettest
|
|
Austin/Mabry |
70.6 |
81.4 |
59.8 |
100 |
30 |
3.97 |
0 |
12.63 |
|
Austin/Bergstrom |
70.8 |
81.8 |
59.7 |
98 |
32 |
3.99 |
0 |
13.08 |
|
Del Rio |
71.1 |
81.7 |
60.5 |
106 |
28 |
2.00 |
0 |
11.69 |
|
San Antonio |
70.7 |
82.0 |
59.4 |
99 |
27 |
3.86 |
T |
18.07 |
|
September 2007 Weather in Review
AUSTIN...
Austin/Bergstrom International Airport:
The average September temperature was 78.7 degrees,
0.8 degrees
below normal.
The average high was 90.1 and the average low was 67.3.
Heating degree days was 0 and Cooling degree days 417.
The highest temperature was 94 on the 27th. The lowest
was 60 on the 21st and 25th.
Highest wind gust was 29 mph from the east, southeast
with showers and thunderstorms in the area on the 4th and
from the east, northeast with showers and thunderstorms
in the area on the 29th.
Rainfall was 0.73 inches, 2.15 inches below normal.
Rainfall from January 1st to September 30th was 42.25
inches or 17.07 inches above normal.
Austin Mabry:
The average September temperature was 81.3 degrees,
1.8 degrees above normal.
The average high was 90.6 and the average low was 72.0.
Heating degree days was 0 and Cooling degree days 497.
The highest temperature was 95 on the 27th.
The lowest was 67 on the 21st and 25th.
Highest wind gust was 24 mph from the south, southeast
with thunderstorms on the 29th.
Rainfall for September was 3.97 inches, 1.06 inches
above normal.
Rainfall from January 1st to September 30th was 43.99
inches or 19.43 inches above normal.
Go to Austin daily data for September 2007.
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DEL RIO...
The average September temperature was 80.3 degrees, 0.3
degrees above normal.
The average high was 88.9 and the average low was 71.8.
Heating degree days 0 and cooling degree days 469.
The highest temperature reached 93 on the 27th,
The lowest was 67 on the 2nd and 23rd.
The highest wind gust was 37 mph from the east with
thunderstorms in the area on the 1st.
Rainfall for September was 3.49 inches or 1.43 inches
above normal.
Rainfall from January 1st to September 30th was 28.56
inches or 13.47 inches above normal.
Go to Del Rio daily data for September 2007.
|
SAN ANTONIO...
The average September temperature was 80.2 degrees,
0.8 degrees above normal.
The average high was 89.1, and the average low was 71.6.
Heating degree days 0 and cooling degree days 465.
The highest temperature reached 94 on the 27th, and
the lowest was 64 on the 23rd and 25th.
Highest wind gust was 24 mph from the southeast on the 7th
and 24 mph from the north, northeast with
thunderstorms and a cool front on the 11th.
Rainfall for September was 1.09 inches, 1.91 inches below normal.
Rainfall from January 1st to September 30th was 45.70 inches or
21.18 inches above normal.
Go to San Antonio daily data for September 2007.
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