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August 2007 Weather in Review
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Drier and much warmer weather came August 1st to 15th
and then like the rest of the Summer of 2007, a change to
wetter conditions came August 16th
as Tropical Storm Erin made its way across South Central
Texas, from the Coastal Bend in the early morning of
August 16th to near San Antonio in the late afternoon.
What was left of Tropical Storm Erin moved west
and northwest of San Antonio in the evening of the 16th
to north of Rockspirngs in the predawn hours of Friday
August 17th. Drier days showed up the 18th and 19th, and then
the trend toward more rain returned the 20th and continued
through the 31st.
Compared to most August months for South Central Texas,
August 2007 had moderated temperatures; however, August 2007 was much warmer
than the cool spring temperatures and below normal temperatures in
June and July of this year.
August 2007 Summary
Location
|
Average
Temperature
|
Average High
|
Average Low
|
Warmest/Coolest
|
Rainfall
|
|
Austin Mabry
|
85.0 +0.5
|
94.5
|
75.6
|
100 on 12th, 13th and 14th
70 on the 31st
|
2.50 +0.19
|
|
Austin Bergstrom
|
82.9 -1.6
|
93.2
|
72.7
|
99 on 12th and 13th
68 on 28th
|
2.19 -0.32
|
|
Burnet
|
82.9 +1.0
|
92.4
|
73.4
|
98 on 12th
69 on 28th
|
1.50 -0.56
|
|
Del Rio
|
84.0 -1.1
|
93.8
|
74.3
|
97 on 13th to 15th and 17th
71 on 29th
|
1.25 -0.91
|
|
Hondo
|
82.3 -0.6
|
91.3
|
73.3
|
98 on 13th
69 on 31st
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5.70/ +4.21
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New Braunfels
|
83.7 +1.1
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93.8
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73.6
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100 on 13th
70 on 27th and 28th
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1.88 -0.44
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San Antonio
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83.7 -0.5
|
91.9
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75.5
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98 on 13th
/71 on 31st
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6.77 +4.20
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JANUARY TO AUGUST OF 2007 WAS EASILY THE WETTEST FIRST 8 MONTHS OF
ANY YEAR FOR SAN ANTONIO FROM 1871 TO 2007 AND FOR AUSTIN BERGSTROM
FROM 1943 TO 2007. AT AUSTIN MABRY...FROM 1856 TO 2007...AND
DEL RIO...FROM 1906 TO 2007...IT WAS THE 3RD WETTEST JANUARY TO
AUGUST.
JUNE TO AUGUST OF 2007 WAS EASILY THE WETTEST AT SAN ANTONIO...
THE 3RD WETTEST AT AUSTIN MABRY AND AUSTIN BERGSTROM...AND THE
9TH WETTEST AT DEL RIO.
THE LIST BELOW SHOWS THE WETTEST JANUARY TO AUGUST AND
JUNE TO AUGUST PERIODS FROM THE PAST.
SAN ANTONIO WETTEST JANUARY TO AUGUST PERIODS 1871 TO 2007
1. 2007 44.61
2. 1992 38.82
3. 1880 34.17
4. 1973 33.89
5. 1935 33.08
SAN ANTONIO WETTEST JUNE TO AUGUST PERIODS 1871 TO 2007
1. 2007 25.00
2. 2002 18.94
3. 1973 18.64
IN ADDITION...EVEN THOUGH 2007 HAS THE REST OF SEPTEMBER...
OCTOBER...NOVEMBER AND DECEMBER LEFT...THE 44.61 INCHES OF
RAIN SINCE JANUARY 1ST AT SAN ANTONIO MAKES 2007 SO FAR THE
8TH WETTEST YEAR FOR SAN ANTONIO.
THE 6.77 INCHES OF RAIN FOR SAN ANTONIO IN AUGUST 2007 MADE
AUGUST 2007 THE 10TH WETTEST AUGUST FOR SAN ANTONIO SINCE 1871.
THE WETTEST AUGUST MONTHS FOR SAN ANTONIO FOLLOWS.
1. 11.14 AUGUST 1974 6. 7.83 AUGUST 2001
2. 9.42 AUGUST 1971 7. 7.80 AUGUST 1914
3. 9.09 AUGUST 1892 8. 7.78 AUGUST 1998
4. 8.67 AUGUST 1880 9. 7.76 AUGUST 1888
5. 8.55 AUGUST 1894 10. 6.77 AUGUST 2007
AUSTIN BERGSTROM WETTEST JANUARY TO AUGUST PERIODS 1943 TO 2007
1. 2007 41.52
2. 1991 37.80
3. 1992 35.28
4. 2004 33.85
5. 1965 33.08
AUSTIN BERGSTROM WETTEST JUNE TO AUGUST PERIODS 1943 TO 2007
1. 1981 18.97
2. 2004 18.63
3. 2007 17.30
4. 1961 15.87
DEL RIO WETTEST JANUARY TO AUGUST PERIODS 1906 TO 2007
1. 1914 26.28
2. 1935 25.63
3. 2007 25.07
4. 1998 23.70
5. 1931 22.98
DEL RIO WETTEST JUNE TO AUGUST PERIODS 1906 TO 2007
1. 1998 23.82
2. 1935 16.58
3. 1906 15.32
4. 1976 14.07
5. 1914 13.86
6. 1961 13.65
7. 1971 11.42
8. 1940 10.83
9. 2007 10.58
AUSTIN MABRY WETTEST JANUARY TO AUGUST PERIODS 1856 TO 2007
1. 1919 45.91
2. 1900 41.59
3. 2007 40.02
4. 1915 35.66
5. 1992 35.64
AUSTIN MABRY WETTEST JUNE TO AUGUST PERIODS 1856 TO 2007
1. 1919 23.31
2. 1961 20.23
3. 1981 19.26
4. 2007 17.75
MODERATED TEMPERATURES FROM THE SPRING CONTINUED THROUGH THE SUMMER
MONTHS OF 2007. THE ABUNDANCE OF SHOWERS AND CLOUDS THIS SUMMER
MADE JUNE TO AUGUST OF 2007 ONE OF THE COOLER JUNE TO AUGUST
PERIODS.
THE COOLEST JUNE TO AUGUST AVERAGE TEMPERATURES OF RECORD FOLLOWS.
SAN ANTONIO...1885 TO 2007
1. 78.9 1903
2. 80.1 1919
3. 80.4 1976
4. 80.5 1889
5. 80.9 1975
6. 81.0 1904
7. 81.2 1974
8. 81.5 1972
8. 81.5 1973
10. 81.6 1888, 1885, 1966, AND 2007
DEL RIO...1906 TO 2007
1. 80.2 1971
2. 80.7 1976
3. 80.8 1919
4. 81.8 1931, 2007
AUSTIN MABRY...1854 TO 2007
1. 78.6 1907
2. 79.7 1855
3. 79.9 1870
...
36. 82.3 1966, 2007
AUSTIN BERGSTROM...1943 TO 2007
1. 80.2 1973
2. 80.7 2007
3. 81.1 2004
August began with widely scattered showers and thunderstorms
for the first few days of the month. A drier and much warmer
pattern developed the weekend of the 4th and 5th. Sunny days
with dry weather continued through the 15th.
The warmest days of the year from January 1st to August 31st
came from August 10th to the 15th. The first of a string of
three 100 degree days at Austin Mabry for 2007 came August
the 12th, where the high continued to be 100 on August 13th and 14th.
The high reached 100 at New Braunfels on August 13th.
Conditions quickly changed late in the day of August 15th ahead of
Tropical Storm Erin, that moved across South Central Texas on
Thursday, August 16th. This brought heavy rains to the area.
The rain increased rapidly across the area from the east and
southeast in the predawn hours of the 16th and this continued
during the day of the 16th.
The rain became widespread from east and southeast of San Antonio
to San Antonio and Hondo and extended north across the
Hill Country. The heaviest rain was from Wilson, Bexar,
Medina and parts of Comal County, north to Bandera, Kendall,
Gillespie and Blanco Counties.
These heavy rains caused flooding in the area.
The most rain fell between Boerne and Fredericksburg,
over northern Kendall and southern Gillespie Counties, where
rainfall amounts of 11 to 12 inches was observed on August 16th.
August 16th was the wettest August Day at the San Antonio
International Airport location, with 5.73 inches of rain, more
than the previous wettest for August of 5.57 inches on August 13, 1950.
San Antonio Stinson Field had 9.60 inches on the 16th.
Widely scattered showers lingered August 17th, then conditions
dried up for a short time the weekend of the 18th and 19th.
Widely scattered showers and thunderstorms increased over the
area again Monday the 20th through Thursday the 24th. Some
of this activity was associated with the extreme northern
bands of Hurricane Dean, and a weak area of low pressure
aloft. When Hurricane Dean was over the southern Gulf of
Mexico on Wednesday and Thursday the 22nd and 23rd,
the outermost bands of Hurricane Dean caused areas of
showers to form over the area mainly during the daylight
hours.
On the weekend of the 25th and 26th, an area of low pressure aloft
developed over the area from the east and southeast.
This setup a pattern of more daytime to early evening
showers and thunderstorms the week of
Monday the 27th to Friday the 31st. Isolated heavy downpours
of rain caused between 2 and 3 inches of rain at Speaks
and Comfort on Wednesday the 29th.
On Thursday the 30th, 1.07 inches of rain fell at Del Rio
in a short period of time, along with a wind gust of 48 mph
in a thunderstorm. On the last day of the month rain came
in several waves beginning in the late morning and
continuing through the evening hours. Scattered
daytime showers and thunderstorms produced locally
heavy rains in Bexar, Wilson, Gonzales, Guadalupe,
Medina, and Lavaca Counties. Another line of
thunderstorms formed between Caldwell and Austin
in the late afternoon and moved southwest across
Williamson, Travis, Lee, Fayette, Bastrop, Burnet,
Llano, Hays, Blanco, and Gillespie Counties in
the evening. Rainfall amounts of one half to
near 1 inch fell in the Austin Area, along with
wind gusts to near 40 mph.
The thunderstorms
brought cooler air and made the low of 70
at Austin Mabry, the coolest temperature for
the month of August at the Austin city climate
location.
The updated outlook from the Climate Prediction Center for
September 2007 calls for the average monthly temperature to
have Equal Chances of being above, below or near normal.
The rainfall shows a slightly better chance of rainfall
being above the September 30 Year 1971 to 2000 Average.
Click Here to See the Latest One Month Outlook from the Climate Prediction
Center.
September 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 |
79.5 |
90.1 |
68.8 |
112 |
41 |
2.91 |
T |
20.75 |
|
Austin/Bergstrom |
79.5 |
90.1 |
68.9 |
112 |
45 |
2.63 |
0.02 |
9.36 |
|
Del Rio |
80.0 |
90.6 |
69.4 |
110 |
43 |
2.06 |
T |
15.79 |
|
San Antonio |
79.4 |
90.0 |
68.8 |
111 |
41 |
3.00 |
0.01 |
15.78 |
|
August 2007 Weather in Review
AUSTIN...
Austin/Bergstrom International Airport:
The average August temperature was 82.9 degrees, 1.6 degrees
below normal.
The average high was 93.2 and the average low was 72.7.
Heating degree days was 0 and Cooling degree days 567.
The highest temperature was 99 on 12th and 13th. The lowest
was 68 on the 28th.
Highest wind gust was 38 mph from the northeast with
thunderstorms on the 31st.
Rainfall was 2.19 inches, 0.32 inches below normal.
Rainfall from January 1st to August 31st was 41.52 inches or
19.22 inches above normal.
Austin Mabry:
The average August temperature was 85.0 degrees, 0.5 degrees
above normal.
The average high was 94.5 and the average low was 75.6.
Heating degree days was 0 and Cooling degree days 632.
The highest temperature was 100 on the 12th, 13th and 14th.
The lowest was 70 on the 31st.
Highest wind gust was 36 mph from the east with
thunderstorms on the 31st.
Rainfall for August was 2.50 inches, 0.19 inches above normal.
Rainfall from January 1st to August 31st was 40.02 inches or
18.37 inches above normal.
Go to Austin daily data for August 2007.
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DEL RIO...
The average August temperature was 84.0 degrees, 1.1 degrees below normal.
The average high was 93.8 and the average low was 74.3.
Heating degree days 0 and cooling degree days 599.
The highest temperature reached 97 on the 13th, 14th, 15th, and 17th.
The lowest was 71 on the 29th.
The highest wind gust was 48 mph from the north, northwest
with thunderstorms on the 30th.
Rainfall for August was 1.25 inches or 0.91 inches
below normal.
Rainfall from January 1st to August 31st was 25.07 inches or
12.04 inches above normal.
Go to Del Rio daily data for August 2007.
|
SAN ANTONIO...
The average August temperature was 83.7 degrees,
0.5 degrees below normal.
The average high was 91.9, and the average low was 75.5.
Heating degree days 0 and cooling degree days 586.
The highest temperature reached 98 on the 13th, and
the lowest was 71 on the 31st.
Highest wind gust was 36 mph from the east, southeast with
thunderstorms on the 16th.
Rainfall for August was 6.77 inches, 4.20 inches above normal.
Rainfall from January 1st to August 31st was 44.61 inches or
23.09 inches above normal.
Go to San Antonio daily data for August 2007.
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