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Texas Climate Report: August 2007

Summer returned to parts of the state this month while other areas continued a trend this summer of cooler temperatures and wet conditions. Also, Tropical Storm Erin formed in the Gulf of Mexico and made landfall along the middle Texas coast on August 16th.

High pressure built in across the Southern Plains early in the month resulting in more typical summer like temperatures for parts of the state. This was particularly the case in areas of north and central Texas. Dallas/Fort Worth recorded an average monthly temperature of 87.8°F, which was 3.4°F above normal. Shreveport’s average temperature of 86.3°F was over 3°F above normal. Temperatures in central and west Texas were generally at or slightly below normal. The exception was in El Paso, which recorded an average temperature of 83.4°F, which was more than 2°F above normal. Southeast Texas observed temperatures around 2°F above average.

Precipitation patterns were varied across the state. On August 16th, Tropical Storm Erin made landfall near Lamar, Texas brining heavy rain to parts of southeast Texas and the Hill Country. Houston recorded 2.59" of rain on the 16th, causing flash flooding as a result of bayous over spilling their banks. For the month, Houston recorded 8.05" which was more than 4 inches above normal. San Antonio, Corpus Christi, and Victoria also recorded above average precipitation totals. Portions of north and east Texas, where the ridge of high pressure was strongest, saw the least amount of rain. Dallas/Fort Worth and Shreveport only saw 0.35" and 0.61", respectively. Rainfall rates across west Texas and the Panhandle were especially varied. El Paso and Del Rio were below average. San Angelo and Abilene, however, were well above average, recording 6.55" and 7.07", respectively.

Hurricane Dean formed in the western Atlantic late in the month and became a category 5 hurricane as it traversed the Caribbean. The strong ridge of high pressure anchored over the southeastern United States steered Dean well to the south of Texas as it made landfall in Mexico.

Monthly Summary for Selected Cities

  TMAX (°F) TMIN (°F) TAVG (°F) PRCP *Deg. Days
Station Mean *Dep. Max. Mean *Dep. Min. Mean *Dep. Days ≥ 0.01" Mo. Total *Perc. Norm. Gr'st 24 hr. *HDD *CDD
Abilene 91.3 ‑2.4 97 71.5 +0.1 68 81.4 ‑1.2 6 7.07 269% 4.69 0 517
Amarillo 93.0 +4.3 101 66.4 +2.6 61 79.7 +3.4 5 0.88 30% 0.44 0 464
Austin 94.5 ‑1.1 100 75.6 +2.3 70 85.0 +0.5 8 2.50 108% 0.93 0 632
Brownsville 93.5 +0.9 99 76.9 +1.6 74 85.2 +1.2 12 3.16 106% 1.27 0 636
College Station 94.6 ‑1.6 102 76.2 +3.0 72 85.4 +0.7 9 1.40 53% 0.58 0 638
Corpus Christi 92.1 ‑1.3 98 76.0 +1.5 72 84.0 +0.1 17 5.25 148% 1.22 0 600
Dallas‑Fort Worth 97.5 +2.7 104 78.0 +4.0 74 87.8 +3.4 3 0.35 17% 0.28 0 714
Del Rio 93.8 ‑2.2 97 74.3 +0.2 71 84.0 ‑1.1 3 1.25 58% 1.17 0 599
El Paso 94.4 +2.4 104 72.3 +2.1 69 83.4 +2.3 4 0.57 33% 0.26 0 577
Galveston 90.9 +1.6 99 80.5 +1.0 76 85.7 +1.3 13 4.77 113% 2.07 0 651
Houston 94.4 +0.9 102 76.4 +3.4 73 85.4 +2.1 11 8.05 210% 2.59 0 640
Lubbock 91.1 +1.1 98 68.2 +2.2 64 79.6 +1.6 6 1.99 84% 0.91 0 463
Midland 91.8 ‑1.0 98 68.8 +0.9 64 80.3 ‑0.1 N/A N/A N/A 2.72 0 479
Port Arthur 93.3 +1.6 102 75.5 +2.3 71 84.4 +1.9 14 5.86 121% 2.04 0 608
San Angelo 92.2 ‑0.9 98 70.1 +0.7 66 81.1 ‑0.2 6 6.55 320% 5.60 0 508
San Antonio 91.9 ‑2.8 98 75.5 +1.9 71 83.7 ‑0.5 6 6.77 263% 5.79 0 586
Victoria 92.9 ‑0.8 100 75.5 +0.9 72 84.2 16 5.73 188% 1.69 0 601
Waco 96.2 ‑0.7 102 74.6 +1.1 71 85.4 +0.2 2 0.48 26% 0.26 0 641
Wichita Falls 96.5 +0.7 103 74.9 +3.6 69 85.7 +2.2 5 2.83 118% 1.49 0 649
Shreveport, LA 96.5 +3.1 104 76.1 +3.8 73 86.3 +3.4 3 0.61 23% 0.59 0 669
Bold-italics indicate a value broke or tied the record from a previous year.
*Dep.: Departure of the monthly average temperature from the 1971-2000 monthly normal, which is provided by the National Climatic Data Center.
*Perc. Norm.: Monthly precipitation total divided by 1971-2000 monthly normal, which is provided by the National Climatic Data Center.
*Deg. Days: Computed daily as the departure of the daily average temperature from 65°F and aggregated over the entire month.
*Heating degree day (HDD): Each unit corresponds to a -1°F departure of a daily average temperature from 65°F.
*Cooling degree day (HDD): Each unit corresponds to a +1°F departure of a daily average temperature from 65°F.

aug 2007 average temperatures
aug 2007 average precipitation

Monthly Extremes

Least Precipitation Overall for the Month (inches)
Station County Value
LANGTRY VAL VERDE 0.00
Greatest Precipitation Overall for the Month (inches)
Station County Value
SISTERDALE KENDALL 13.13
Greatest Precipitation in 24 Hours (inches)
Station County Value
SISTERDALE KENDALL 11.70
Lowest Average Daily Temperature (°F)
Station County Value
MT LOCKE JEFF DAVIS 70.6
Highest Average Daily Temperature (°F)
Station County Value
MARSHALL HARRISON 88.9
Lowest Average Daily Maximum Temperature (°F)
Station County Value
CHISOS BASIN BREWSTER 82.8
Highest Average Daily Maximum Temperature (°F)
Station County Value
PRESIDIO PRESIDIO 100.7
Highest Maximum Temperature  (°F)
Station County Value
PRESIDIO PRESIDIO 108
WINKLER CO AP WINKLER 108
Lowest Maximum Temperature  (°F)
Station County Value
COPE RCH REAGAN 72
MC LEAN GRAY 72
PINE SPRINGS CULBERSON 72
Lowest Average Daily Minimum Temperature (°F)
Station County Value
MT LOCKE JEFF DAVIS 57.8
Highest Average Daily Minimum Temperature (°F)
Station County Value
PORT ARANSAS NUECES 81.3
Highest Minimum Temperature (°F)
Station County Value
PITTSBURG 5 SSE CAMP 88
Lowest Minimum Temperature (°F)
Station County Value
MULESHOE 19 S BAILEY 55
MT LOCKE JEFF DAVIS 55

New Monthly Records

Least Precipitation Overall for the Month (inches)
Station County Value Previous Record Yrs. Data
FT HOOD BELL 0.13 0.45 (1962) 10
LANGTRY VAL VERDE 0.00 0.00 (1989) 55
Greatest Precipitation Overall for the Month (inches)
Station County Value Previous Record Yrs. Data
BIG SPRING HOWARD 7.63 7.16 (1996) 54
BANKERSMITH GILLESPIE 9.06 6.29 (1998) 25
BENJAMIN 15 W KING 7.50 7.35 (1995) 23
BIG BEND RCH SP PRESIDIO 4.74 3.01 (1996) 11
BIG SPRING HOWARD 7.63 7.16 (1996) 55
COMFORT 2 KENDALL 10.00 7.24 (1998) 16
COPE RCH REAGAN 6.86 6.23 (1996) 58
INGRAM #2 KERR 6.04 5.77 (1998) 17
NORTHINGTON RCH KENDALL 10.79 7.98 (2001) 22
PANDALE 1 N VAL VERDE 10.40 9.88 (1998) 50
ROBERT LEE COKE 8.44 7.47 (2005) 62
SAN ANTONIO/SEAWORLD BEXAR 8.43 8.28 (1998) 20
SISTERDALE KENDALL 13.13 6.73 (1998) 18
Greatest Precipitation in 24 Hours Ever in the Month (inches)
Station County Value Previous Record Yrs. Data
SAN ANTONIO INTL AP BEXAR 5.79 5.57 (1950) 123
SAN ANGELO MATHIS FLD TOM GREEN 5.60 4.67 (1996) 63
WINKLER CO AP WINKLER 2.61 2.20 (1975) 63
BIG SPRING HOWARD 5.09 3.00 (1980) 54
ASPERMONT STONEWALL 4.80 4.35 (1932) 90
BANKERSMITH GILLESPIE 8.48 3.20 (1998) 25
BIG BEND RCH SP PRESIDIO 2.13 1.46 (1995) 11
BIG SPRING HOWARD 5.09 3.00 (1980) 55
BOERNE KENDALL 7.33 7.25 (2001) 113
CASTOLON BREWSTER 1.90 1.81 (2005) 28
CHILDRESS 2 CHILDRESS 3.00 2.01 (2001) 10
COMFORT 2 KENDALL 7.38 4.00 (1998) 16
COPE RCH REAGAN 4.07 3.20 (1998) 58
COTTONWOOD GILLESPIE 6.00 5.85 (1978) 87
FORSAN HOWARD 5.12 3.26 (1972) 58
FT MCKAVETT MENARD 3.38 2.55 (1882) 14
FT GRIFFIN SHACKELFORD 2.35 2.00 (2004) 10
FREDERICKSBURG GILLESPIE 7.89 7.62 (1944) 81
GAIL BORDEN 4.25 3.70 (1972) 58
INGRAM #2 KERR 4.75 3.82 (1998) 17
JOHNSON CITY BLANCO 3.35 3.20 (1975) 39
KENDALIA KENDALL 5.11 4.10 (2005) 12
KNAPP 2 SW SCURRY 5.55 3.48 (1975) 71
LA JOYA HIDALGO 1.00 0.83 (2003) 10
LAKE ALAN HENRY GARZA 3.05 2.25 (2003) 14
LLANO 18 S LLANO 2.53 1.79 (2004) 10
LONG LAKE ANDERSON 2.39 2.35 (1983) 36
MC LEAN GRAY 3.10 2.65 (1966) 49
NORTHINGTON RCH KENDALL 9.92 4.23 (2001) 22
OAK CREEK LAKE COKE 7.65 5.00 (2005) 46
OAKWOOD FREESTONE 2.39 2.35 (1983) 36
PANDALE 1 N VAL VERDE 9.94 3.24 (1974) 50
ROBERT LEE COKE 6.34 4.15 (2005) 62
SAN ANTONIO 8 NNE BEXAR 5.87 4.35 (2001) 11
SAN ANTONIO/SEAWORLD BEXAR 6.71 2.80 (1998) 20
SISTERDALE KENDALL 11.70 3.50 (1998) 18
SOUTH CAMP 6666 KING 3.00 2.46 (1971) 14
THREE RIVERS 8 NE LIVE OAK 3.50 2.91 (1998) 18
WHEELER WHEELER 4.20 3.13 (1989) 29
WHITE RIVER RESERVOIR CROSBY 2.90 2.75 (2005) 10
Lowest Average Daily Temperature (°F)
Station County Value Previous Record Yrs. Data
ALICE INTL AP JIM WELLS 84.2 84.2 (1949) 10
CHOKE CANYON DAM LIVE OAK 83.0 83.6 (1992) 23
DEL RIO 2 NW VAL VERDE 82.6 82.8 (2005) 12
PLEASANTON ATASCOSA 83.3 83.8 (1992) 16
SAN ANTONIO 8 NNE BEXAR 82.1 82.6 (2004) 10
VERNON WILBARGER 77.3 77.4 (1992) 59
Highest Average Daily Temperature (°F)
Station County Value Previous Record Yrs. Data
MARSHALL HARRISON 88.9 87.9 (1928) 78
CROCKETT HOUSTON 88.0 87.4 (1909) 67
Lowest Average Daily Maximum Temperature (°F)
Station County Value Previous Record Yrs. Data
ALICE INTL AP JIM WELLS 93.5 97.1 (1953) 10
SAN ANTONIO STINSON AP BEXAR 92.1 93.5 (2004) 10
YOAKUM LAVACA 91.4 92.2 (1971) 56
ACTON RCH CROCKETT 89.5 89.9 (1998) 14
BENAVIDES 2 DUVAL 92.4 93.2 (1980) 37
BISHOP NUECES 93.5 93.9 (1942) 24
CAMP WOOD REAL 89.4 90.4 (1998) 40
CHOKE CANYON DAM LIVE OAK 91.8 95.1 (2004) 23
DEL RIO 2 NW VAL VERDE 92.8 93.6 (2005) 12
DRIPPING SPRINGS 6 E HAYS 89.6 92.0 (2004) 23
FLATONIA FAYETTE 90.9 91.3 (2002) 89
FOWLERTON LA SALLE 92.9 93.8 (1971) 48
HUDSPETH RIVER RANCH VAL VERDE 91.5 91.7 (1992) 17
PLEASANTON ATASCOSA 92.4 97.0 (1992) 16
REFUGIO 2 NW REFUGIO 90.8 91.2 (1994) 21
SAN ANTONIO 8 NNE BEXAR 90.3 92.9 (2004) 10
VERNON WILBARGER 89.2 89.3 (1992) 59
Highest Maximum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
DALHART MUNI AP DALLAM 106 103 (2003) 57
BRAVO HARTLEY 106 103 (1994) 33
FRIONA PARMER 105 103 (1982) 46
HEREFORD DEAF SMITH 105 105 (1944) 75
MORTON COCHRAN 105 105 (2003) 42
MULESHOE NWR BAILEY 106 105 (2003) 26
PORT ARANSAS NUECES 97 97 (2005) 18
PORT O CONNOR CALHOUN 102 101 (2005) 47
SOUTH PADRE ISLAND CAMERON 95 94 (2006) 10
STRATFORD SHERMAN 105 104 (1969) 60
THOMPSONS 3 WSW FORT BEND 106 104 (2000) 48
Lowest Maximum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
ACTON RCH CROCKETT 75 75 (2001) 14
HEBBRONVILLE JIM HOGG 78 78 (1999) 42
PLEASANTON ATASCOSA 82 84 (1996) 16
Lowest Average Daily Minimum Temperature (°F)
Station County Value Previous Record Yrs. Data
VERNON WILBARGER 65.5 65.5 (1992) 59
Highest Average Daily Minimum Temperature (°F)
Station County Value Previous Record Yrs. Data
MARSHALL HARRISON 79.4 74.9 (2006) 79
FT HOOD BELL 76.4 75.3 (1962) 10
HOUSTON HOBBY AP HARRIS 78.0 76.9 (2005) 60
ALICE INTL AP JIM WELLS 75.0 74.4 (1951) 10
BRAVO HARTLEY 63.8 63.2 (2000) 34
CANDELARIA PRESIDIO 70.6 69.5 (2001) 40
CROCKETT HOUSTON 76.3 74.6 (1999) 68
DAINGERFIELD 9 S MORRIS 76.3 76.3 (2006) 44
FT MCKAVETT MENARD 70.8 70.0 (2006) 14
FT HANCOCK 8 SSE HUDSPETH 67.9 67.7 (1969) 33
GRUVER HANSFORD 66.2 65.8 (2000) 43
HOUSTON NWSO GALVESTON 76.0 74.9 (1995) 21
JEFFERSON MARION 72.7 72.6 (1905) 21
LA TUNA 1 S EL PASO 73.1 72.7 (1969) 53
LIPSCOMB LIPSCOMB 67.7 67.4 (2006) 39
MORTON COCHRAN 65.5 65.5 (2002) 42
SAM RAYBURN DAM JASPER 74.1 73.6 (2006) 39
WRIGHT PATMAN DAM CASS 75.7 74.7 (2006) 37
TORNILLO 2 SSE EL PASO 66.8 66.6 (2006) 26
Highest Minimum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
SAN ANTONIO STINSON AP BEXAR 78 78 (2006) 10
PORT ARANSAS NUECES 85 84 (2006) 17
SOUTH PADRE ISLAND CAMERON 83 83 (2006) 10
TORNILLO 2 SSE EL PASO 75 74 (2004) 26

Climatic Averages for September

  TMAX (°F) TMIN (°F) PRCP (inches) No. Days in Month Deg. Days
Station Avg. Record Avg. Record Avg. Gr'st Mo. Gr'st 24 hr. ≥ 90°F ≤ 32°F PRCP ≥ 0.01" HDD CDD
Abilene 86.7 107 (2000) 64.4 38 (1989) 2.91 11.03 (1974) 6.70 (1961) 12.5 0.0 6.5 18 327
Amarillo 81.8 103 (1995) 56.3 30 (1984) 1.88 6.42 (1923) 3.49 (1900) 7.0 0.2 6.4 56 173
Austin 90.1 112 (2000) 68.8 41 (1942) 2.91 20.78 (1921) 19.03 (1921) 18.2 0.0 7.2 2 439
Brownsville 89.4 105 (2000) 72.6 51 (1909) 5.31 30.57 (1886) 12.09 (1967) 20.0 0.0 9.3 0 494
College Station 90.9 112 (2000) 68.5 41 (1901) 3.91 12.13 (1958) 6.83 (1896) 18.1 0.0 7.0 0 440
Corpus Christi 89.9 109 (2000) 71.6 52 (2000) 5.03 20.33 (1967) 8.76 (1967) 18.7 0.0 9.0 0 485
Dallas‑Fort Worth 87.7 111 (2000) 67.2 40 (1942) 2.42 10.80 (1932) 9.57 (1932) 15.5 0.0 6.1 2 376
Del Rio 90.6 110 (2000) 69.4 43 (1908) 2.06 17.15 (1964) 5.52 (1970) 20.2 0.0 5.7 2 453
El Paso 87.1 104 (1982) 63.7 41 (1945) 1.61 6.68 (1974) 2.52 (1958) 14.3 0.0 6.5 9 305
Galveston 86.5 104 (2000) 75.6 52 (1942) 5.76 26.01 (1885) 11.65 (1961) 4.7 0.0 9.5 0 482
Houston 89.3 109 (2000) 68.4 45 (1942) 4.33 13.37 (1913) 7.98 (1976) 15.9 0.0 8.9 1 412
Lubbock 83.4 105 (1930) 58.4 33 (1983) 2.57 13.93 (1936) 5.50 (1936) 9.2 0.0 6.3 33 223
Midland 86.1 107 (1953) 61.6 36 (1989) 2.31 9.70 (1980) 4.37 (1986) 11.9 0.0 6.0 19 281
Port Arthur 88.0 105 (2000) 69.4 45 (1967) 6.10 21.96 (1980) 15.01 (1980) 13.0 0.0 10.0 1 417
San Angelo 86.6 107 (2005) 63.0 35 (1913) 2.95 11.00 (1980) 6.25 (1980) 13.2 0.0 5.4 12 321
San Antonio 90.0 111 (2000) 68.8 41 (1942) 3.00 15.78 (1946) 7.28 (1973) 18.4 0.0 6.5 2 439
Victoria 89.9 111 (2000) 70.3 45 (1942) 5.00 19.05 (1978) 7.83 (1978) 18.5 0.0 9.9 1 454
Waco 90.1 111 (2000) 67.0 39 (1942) 2.88 11.17 (1913) 6.03 (1936) 18.3 0.0 6.6 6 416
Wichita Falls 87.5 111 (2000) 63.7 38 (1989) 3.19 10.23 (1980) 6.22 (1980) 15.1 0.0 6.4 18 339
Shreveport, LA 87.6 109 (2000) 66.4 42 (1984) 3.21 16.46 (1913) 7.04 (1913) 14.4 0.0 6.9 6 353
Climatic averages are based on 1971-2000 monthly normals, which are provided by the National Climatic Data Center.
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