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Volume 23 Number 6                                                                                JUNE 2010

        June 2010 was drier than normal across most of Texas, though there were a few distinct regions that received above normal precipitation for the month. A storm system on the 9th and 10th dumped several inches of precipitation in region stretching from Austin/San Antonio northeastward to Texarkana. This same storm system was responsible for several flooding deaths at a campground in Arkansas. College Station picked up 4.27" of precipitation on the 9th and extensive flooding was reported along Guadalupe and Comal Rivers in Central Texas. Tyler picked up 8.14" on the 10th and 8 to 12 inches of rainfall caused extensive damage to homes and washed out roadways in Hill and Navarro counties. Severe thunderstorms in the Panhandle on the 13th dumped over 6 inches of rain in Hansford County and in Moore County, a storm dropped a massive 6-inch hailstone that was caught on video. Toward the end of the month, a tropical system that eventually became Hurricane Alex formed in the Gulf of Mexico and threatened the Lower Texas Gulf Coast. Alex made landfall on the evening of the 30th in northern Mexico as a Category 2 hurricane with 105 mph winds. Hurricane Alex’s most significant impact was excessive rainfall, which led to flooding on South Padre Island. On the 30th, McAllen set a daily rainfall record for the entire month of June with 6.66" of rainfall, while Brownsville recorded 5.86" of precipitation, setting a 24-hour rainfall record for June. In addition to the flooding rains in the Lower Valley, several tornadoes were reported and one of the twisters overturned a mobile home.

        Temperatures across all of Texas were above normal across the entire state. Dallas/Fort Worth was particularly hot, tying 2008 as the 3rd warmest June on record and was just half a degree cooler than June 1980, which was the beginning of most severe heat wave in the history of the Metroplex. Averaged over the entire month, minimum temperatures in DFW were the warmest ever recorded in June. San Angelo was also unusually warm, with average temperatures nearly 6°F above normal and maximum temperature nearly 7°F above normal during June. A historically hot stretch of weather brought extreme summer heat to West Texas during the first week of June, well before the official start of summer. The high temperature of 106°F on the 5th smashed the previous record of 102°F. Midland also set a record on the 5th with a high temperature of 109°F and El Paso set new record high temperatures on the 5th (106°F) and 6th (110°F), the latter of which was 5°F warmer than the previous record). During the second week of June, Wink recorded the warmest maximum temperature in the United States on consecutive days, reaching 106°F on the 10th and 107°F on the 11th. Maximum and minimum June average temperatures were above normal at every single first-order station in Texas, with particularly large positive departures from normal in North Texas.

 

 

JUNE 2010

 

TMAX

TMIN

Mean Temp

Precipitation

 

Station

Avg.

Dep.

Abs. Max

Avg.

Dep.

Abs. Min

Avg.

Dep.

No. Days

Total (In.)

Percent Avg.

Gr'st 24 hr. (In.)

HDD*

CDD*

Abilene

93.9

2.8

98

72.2

3.7

63

83.0

3.2

6

3.32

108%

2.66

0

546

Amarillo

92.0

4.6

100

65.1

4.0

58

78.6

4.3

6

1.00

30%

0.60

0

414

Austin

93.2

2.3

99

75.0

3.9

67

84.1

3.1

6

5.93

156%

2.50

0

581

Brownsville

93.8

3.3

97

77.4

2.5

70

85.6

2.9

7

7.62

260%

5.86

0

628

College Station

91.9

0.2

96

75.9

4.4

70

83.9

2.3

7

9.03

238%

4.31

0

573

Corpus Christi

91.9

1.7

96

75.0

1.5

65

83.5

1.6

8

6.97

197%

3.38

0

561

Dallas-Fort Worth

96.4

5.3

100

76.6

5.9

69

86.5

5.6

6

2.08

64%

0.81

0

653

Del Rio

95.0

1.3

99

74.7

2.6

66

84.9

2.0

5

0.71

30%

0.44

0

603

El Paso

98.6

3.3

110

71.8

3.0

62

85.2

3.1

3

1.08

124%

0.92

0

613

Galveston

88.6

2.0

93

79.3

1.5

70

84.0

1.8

7

2.37

59%

0.91

0

575

Houston

93.4

2.7

99

76.1

4.3

70

84.7

3.4

8

3.75

70%

2.74

0

599

Lubbock

93.9

3.9

105

68.0

3.9

62

81.0

3.9

5

2.55

86%

1.21

0

488

Midland

97.4

4.7

109

70.7

4.3

61

84.1

4.5

7

3.97

232%

2.69

0

580

Port Arthur

91.7

2.3

97

75.2

2.9

71

83.5

2.6

10

3.29

50%

0.75

0

563

San Angelo

97.7

6.9

106

72.4

4.8

61

85.0

5.8

6

1.96

78%

0.96

0

608

San Antonio

91.9

0.5

96

75.2

3.6

67

83.5

2.0

5

4.24

99%

2.40

0

562

Victoria

93.0

2.7

97

75.1

1.8

67

84.0

2.2

9

2.99

60%

1.34

0

580

Waco

95.0

3.0

99

75.8

5.2

68

85.4

4.1

6

5.72

186%

3.91

0

619

Wichita Falls

94.5

2.8

98

71.8

4.0

64

83.2

3.5

5

3.47

94%

1.75

0

551

Shreveport, LA

94.9

5.1

101

74.5

4.6

71

84.7

4.8

10

2.84

56%

1.66

0

598

* Bold italics indicate a monthly record.

* Complete temperature data were unavailable. Temperatures are rounded to the nearest whole degree.

*HDD - Heating degree-day: Refer to the Monthly Average chart for a definition                              T = Trace (<0.005")

*CDD - Cooling degree-day: Refer to the Monthly Average chart for a definition                      M: Information not available.

 

 

 

 

CLIMATIC AVERAGES FOR JULY

 

TMAX

TMIN

Precipitation (In.)

Mean Number of Days in Month

Station

Avg.

Record

Avg.

Record

Avg.

Gr'st Mon. Total

Gr'st 24 hr. Total

TMAX > 90°F

TMIN < 32°F

Days PRCP ≥ 0.01"

HDD*

CDD*

Abilene

94.8

110

72.3

54

1.7

8.04

5.67

26.3

0.0

5.1

0

568

Amarillo

91.0

106

65.3

51

2.7

8.02

7.25

19.9

0.0

7.8

1

405

Austin

95.0

109

73.4

57

2.0

12.80

5.46

28.0

0.0

5.1

0

605

Brownsville

92.4

102

75.4

58

1.8

13.24

6.68

27.7

0.0

5.0

0

601

College Station

95.6

110

73.6

58

1.9

9.30

5.09

27.9

0.0

5.0

0

607

Corpus Christi

93.2

105

74.4

64

2.0

18.13

9.86

28.4

0.0

4.7

0

594

Dallas-Fort Worth

95.4

110

74.6

56

2.1

11.13

4.01

28.2

0.0

4.3

0

621

Del Rio

96.2

111

74.3

63

2.0

13.18

6.34

27.8

0.0

4.3

0

630

El Paso

94.5

112

72.0

56

1.5

8.18

2.63

26.8

0.0

8.2

0

552

Galveston

88.7

101

79.8

66

3.5

18.74

14.35

9.1

0.0

7.7

0

596

Houston

93.6

105

73.5

62

3.2

14.80

5.45

27.3

0.0

8.9

0

573

Lubbock

91.9

109

67.7

49

2.1

7.20

4.38

22.4

0.0

6.3

0

472

Midland

94.3

112

69.1

49

1.9

8.50

5.99

25.8

0.0

5.0

0

512

Port Arthur

91.6

108

73.8

61

5.2

18.71

10.56

24.5

0.0

11.2

0

553

San Angelo

94.4

111

70.4

56

1.1

7.21

2.95

26.8

0.0

4.3

0

554

San Antonio

94.6

106

74.0

60

2.0

16.92

9.90

27.7

0.0

4.6

0

607

Victoria

93.4

110

75.0

61

2.9

20.34

8.41

28.0

0.0

7.2

0

601

Waco

96.7

109

74.1

60

2.2

8.95

4.93

28.7

0.0

5.0

0

637

Wichita Falls

97.2

114

72.4

54

1.6

11.86

3.93

28.0

0.0

4.7

0

618

Shreveport, LA

93.3

107

73.4

58

4.0

25.45

4.96

25.7

0.0

8.1

0

554

*CDD - Cooling degree-day: The difference between the mean individual daily temperature and 65°F, with one CDD resulting for each degree above the standard 65°F during one day.

*HDD - Heating degree-day: The difference between the mean individual daily temperature and 65°F, with one HDD resulting for each degree below the standard 65°F during one day.

 

 

 

 

Climate-related Agricultural Information

 

http://agnews.tamu.edu

 

 

Past Weather Events in July

 

July 21, 1909:  Hurricane.  Velasco, Brazoria County.  One-half of town destroyed, 41 lives lost; damage $2,000,000.

 

July 22-25, 1933:  Tropical Storm.  One of the greatest U.S. storms in area and general rainfall.  The storm reached the vicinity of Freeport late on July 22 and moved very slowly overland across eastern Texas, July 22-25.  The storm center moved into northern Louisiana on the 25th.  Rainfall averaged 12.50 inches over an area of about 25,000 square miles.  Twenty inches or more fell in a small area of eastern Texas and western Louisiana surrounding Logansport, LA.  The 4-day total at Logansport was 22.30 inches.  Property damage was estimated at $1,114,790.

 

July 30, 1933:  Tornado.  Oak Cliff section of Dallas, Dallas County.  Five killed, 30 injured; damage $500,000.

 

July 25, 1934:  Hurricane.  Near Seadrift, Calhoun County.  Nineteen lives lost, many minor injuries; damage $4.5 million.  About 85 percent of damage was in crops.

 

July 27, 1943:  Hurricane.  Near Galveston.  Center moved inland across Bolivar Peninsula and Trinity Bar.  A wind gust of 104 mph was recorded and Texas City; 19 lives lost; damage estimated at $16,550,000.

 

July 24-25, 1979:  Tropical Storm Claudette caused over $750 million in property and crop damages, but fortunately only few injuries.  Near Alvin, 43 inches of rain fell, a new state record for 24 hours.

 

Dr. John Nielsen-Gammon (State Climatologist)

Brent McRoberts (Research Associate)