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Texas Climate Report: July 2005

The month of July started off extremely hot across the entire state with triple-digit heat in most locations across the entire state. For example, College Station set or tied daily record highs on four of the first seven days of the month. However, the surge in temperature was tempered over the remainder of the month, with many areas actually seeing below normal temperatures the rest of July. Del Rio was a substantial 3.4°F above normal for the month, but was actually below normal for the month. Overall, temperatures were above normal across Texas with the exception of the Low Rolling Plains region.

Precipitation was also above normal throughout most of the Lone Star state, especially across the southeastern part of the state. College Station had more than twice its normal July rainfall, including 1.98" of rain on the 14th. The abundance of rainfall in the Upper Coast region can be attributed to an active sea breeze pattern that popped up afternoon storms in the region. The sea breeze is a wind pattern created by the differences in temperature between the warmer land and cooler Gulf of Mexico. To the south, in the Lower Valley and Southern regions, most of the precipitation was a result of this month’s biggest weather story, Hurricane Emily.

Although it came on shore well to the south of the Rio Grande, Emily brought substantial precipitation to the Lower Valley of Texas. McAllen saw 4.25" of rainfall while isolated areas received in excess of six inches of rainfall on the 20th. However, other areas of Texas have remained dry, such as the Trans Pecos, Edwards Plateau, and North Central regions. Dallas has only received 0.41" of rain while El Paso has squeezed out only 0.12" thus far in July. The emergence of Hurricane Emily onshore brought not only heavy rainfall and high winds, but also tornadoes in many of its outer bands. In all, 12 tornadoes struck extreme southern Texas on the 20th, though none caused any considerable damage.

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 94.5 ‑0.3 105 70.7 ‑1.6 65 82.6 ‑0.9 10 2.42 142% 1.07 0 556
Amarillo 91.7 +0.7 102 64.1 ‑1.2 53 77.9 ‑0.3 6 1.15 43% 0.89 0 404
Austin 96.4 +1.4 104 73.9 +0.5 69 85.1 +0.9 13 2.75 140% 1.02 0 631
Brownsville 94.8 +2.4 100 77.1 +1.7 74 86.0 +2.1 7 3.32 188% 2.45 0 657
College Station 95.3 ‑0.3 102 74.4 +0.8 68 84.8 +0.2 6 2.09 109% 1.30 0 624
Corpus Christi 95.2 +2.0 100 74.5 +0.1 70 84.9 +1.1 8 1.83 92% 1.45 0 624
Dallas‑Fort Worth 95.6 +0.2 102 74.5 ‑0.1 70 85.1 +0.1 3 0.74 35% 0.33 0 628
Del Rio 99.6 +3.4 107 76.3 +2.0 71 87.9 +2.6 5 3.73 185% 3.43 0 719
El Paso 98.5 +4.0 107 72.7 +0.7 62 85.6 +2.3 4 0.66 44% 0.28 0 647
Galveston 91.7 +3.0 95 80.5 +0.7 75 86.1 +1.8 9 4.02 117% 1.68 0 664
Houston 93.7 +0.1 101 75.2 +1.7 72 84.4 +0.8 11 5.30 167% 1.57 0 611
Lubbock 91.7 ‑0.2 103 67.1 ‑0.6 54 79.4 ‑0.4 8 2.41 113% 0.69 0 457
Midland 94.3 106 68.8 ‑0.3 62 81.5 ‑0.2 5 2.52 133% 2.08 0 522
Port Arthur 92.2 +0.6 99 74.6 +0.8 71 83.4 +0.7 16 10.31 197% 2.72 0 577
San Angelo 95.7 +1.3 106 70.2 ‑0.2 65 83.0 +0.6 8 1.15 105% 0.80 0 564
San Antonio 95.7 +1.1 102 74.8 +0.8 71 85.3 +1.0 9 2.10 103% 0.91 0 637
Victoria 95.4 +2.0 103 73.5 ‑1.5 68 84.5 +0.3 14 4.86 168% 1.30 0 611
Waco 97.0 +0.3 102 73.2 ‑0.9 64 85.1 ‑0.3 6 1.07 48% 0.43 0 629
Wichita Falls 96.2 ‑1.0 105 71.4 ‑1.0 64 83.8 ‑1.0 7 2.34 148% 0.70 0 591
Shreveport, LA 94.1 +0.8 98 74.2 +0.8 68 84.1 +0.7 10 4.60 115% 1.43 0 600
*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.

jul 2005 average temperatures
jul 2005 average precipitation

Monthly Extremes

Least Precipitation Overall for the Month (inches)
Station County Value
WEST MCLENNAN 0.35
Greatest Precipitation Overall for the Month (inches)
Station County Value
HOUSTON‑PORT HARRIS 13.53
Greatest Precipitation in 24 Hours (inches)
Station County Value
DEL RIO 2 NW VAL VERDE 5.62
Lowest Average Daily Temperature (°F)
Station County Value
MT LOCKE JEFF DAVIS 73.2
Highest Average Daily Temperature (°F)
Station County Value
HEATH CANYON BREWSTER 89.9
Lowest Average Daily Maximum Temperature (°F)
Station County Value
CHISOS BASIN BREWSTER 85.5
Highest Average Daily Maximum Temperature (°F)
Station County Value
HEATH CANYON BREWSTER 105.5
Highest Maximum Temperature  (°F)
Station County Value
HEATH CANYON BREWSTER 117
Lowest Maximum Temperature  (°F)
Station County Value
MT LOCKE JEFF DAVIS 61
Lowest Average Daily Minimum Temperature (°F)
Station County Value
MARFA 2 PRESIDIO 58.9
Highest Average Daily Minimum Temperature (°F)
Station County Value
PORT ARANSAS NUECES 80.7
Highest Minimum Temperature (°F)
Station County Value
GALVESTON SCHOLES FLD GALVESTON 85
PADRE IS NS KLEBERG 85
Lowest Minimum Temperature (°F)
Station County Value
DIMMITT 2 N CASTRO 47
LIPSCOMB LIPSCOMB 47

New Monthly Records

Greatest Precipitation Overall for the Month (inches)
Station County Value Previous Record Yrs. Data
AQUILLA 1 SSE HILL 3.15 2.61 (1995) 14
BELLVILLE 6 NNE AUSTIN 5.96 5.88 (1990) 25
CORRIGAN 1 ENE POLK 6.73 5.82 (2003) 14
HOUSTON HEIGHTS HARRIS 12.29 10.05 (1959) 53
HOUSTON‑PORT HARRIS 13.53 6.18 (1998) 13
HOUSTON NWSO GALVESTON 7.50 6.63 (1999) 19
LUMBERTON HARDIN 7.56 6.12 (1996) 10
MIDWAY 4 NE MADISON 8.26 6.27 (1995) 28
Greatest Precipitation in 24 Hours Ever in the Month (inches)
Station County Value Previous Record Yrs. Data
HARLINGEN RIO GRANDE AP CAMERON 2.77 2.13 (1955) 17
MCALLEN MILLER INTL AP HIDALGO 4.26 3.36 (1975) 44
AMISTAD DAM VAL VERDE 5.58 4.33 (1988) 42
AQUILLA 1 SSE HILL 2.76 1.25 (1997) 14
BAYTOWN HARRIS 5.30 4.80 (2002) 22
BERTRAM 3 ENE BURNET 4.33 4.10 (1973) 37
BIG BEND RCH SP PRESIDIO 2.40 1.45 (2000) 10
COPE RCH REAGAN 3.90 3.71 (1948) 57
HENDERSON RUSK 4.57 4.50 (1911) 98
HOUSTON‑PORT HARRIS 3.65 2.20 (1995) 13
HOUSTON NWSO GALVESTON 3.36 2.21 (2003) 19
LAJITAS BREWSTER 3.65 2.00 (1990) 26
MONAHANS WARD 4.32 3.50 (1988) 43
PITCHFORK RCH DICKENS 2.78 2.60 (1973) 30
WOODVILLE TYLER 2.10 2.10 (1995) 15
YOUNGSPORT BELL 2.60 2.53 (2002) 14
Highest Average Daily Temperature (°F)
Station County Value Previous Record Yrs. Data
EL PASO 32 ENE HUDSPETH 81.0 80.7 (2003) 22
FT HANCOCK 8 SSE HUDSPETH 84.3 84.3 (1980) 28
PORT ARANSAS NUECES 86.0 85.7 (1996) 17
Highest Average Daily Maximum Temperature (°F)
Station County Value Previous Record Yrs. Data
DELL CITY 5 SSW HUDSPETH 102.2 101.2 (1994) 25
PORT ARANSAS NUECES 91.4 90.3 (2003) 17
ROCKPORT ARANSAS 93.3 92.7 (1996) 41
Highest Maximum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
HARLINGEN RIO GRANDE AP CAMERON 104 103 (1954) 16
CORPUS CHRISTI NAS NUECES 97 97 (1991) 57
WINKLER CO AP WINKLER 114 111 (2004) 61
BOQUILLAS RS BREWSTER 116 116 (1998) 30
CASTOLON BREWSTER 115 115 (1994) 23
FALCON DAM STARR 110 110 (1998) 42
HEATH CANYON BREWSTER 117 115 (2001) 11
KARNES CITY 2 N KARNES 107 106 (2000) 25
LAJITAS BREWSTER 113 112 (1999) 26
MARATHON BREWSTER 105 105 (1989) 57
PEARSALL FRIO 107 107 (1995) 47
PORT ARANSAS NUECES 94 94 (1996) 17
SAN ANTONIO/SEAWORLD BEXAR 105 104 (2001) 16
STUDY BUTTE BREWSTER 111 111 (1994) 12
THOMPSONS 3 WSW FORT BEND 106 103 (2000) 41
TILDEN 4 SSE MCMULLEN 109 109 (1998) 43
WELDER W'LIFE FOUND SAN PATRICIO 103 103 (2000) 14
Lowest Maximum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
ARLINGTON SIX FLAGS TARRANT 76 79 (2004) 15
BALMORHEA REEVES 67 67 (2004) 75
BOQUILLAS RS BREWSTER 82 82 (1991) 30
FALCON DAM STARR 81 82 (1976) 42
LA JOYA HIDALGO 82 85 (2001) 10
MARATHON BREWSTER 64 69 (1975) 57
PLAINS YOAKUM 67 67 (1976) 43
PUTNAM CALLAHAN 71 72 (1990) 42
SEMINOLE GAINES 62 64 (2004) 76
STERLING CITY STERLING 70 72 (1990) 34
STUDY BUTTE BREWSTER 81 82 (1999) 12
ZAPATA 1 S ZAPATA 78 78 (1975) 42
Lowest Average Daily Minimum Temperature (°F)
Station County Value Previous Record Yrs. Data
SULPHUR SPRINGS HOPKINS 67.3 67.6 (1967) 68
BORGER HUTCHINSON 60.5 63.2 (1950) 56
DIMMITT 2 N CASTRO 59.2 59.2 (1976) 42
LAKE ALAN HENRY GARZA 69.1 70.1 (2004) 12
PANHANDLE CARSON 61.1 61.5 (1995) 42
TURKEY HALL 66.3 66.4 (2004) 37
Highest Average Daily Minimum Temperature (°F)
Station County Value Previous Record Yrs. Data
BISHOP NUECES 75.6 75.5 (2001) 20
FT HANCOCK 8 SSE HUDSPETH 69.5 68.7 (2003) 28
MERCEDES 6 SSE HIDALGO 76.6 75.5 (1980) 31
THOMPSONS 3 WSW FORT BEND 75.4 75.0 (1980) 45
Highest Minimum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
GALVESTON SCHOLES FLD GALVESTON 85 85 (1994) 127
PALACIOS MUNI AP MATAGORDA 84 83 (2004) 62
ACTON RCH CROCKETT 80 80 (1995) 14
BRAVO HARTLEY 72 71 (2003) 34
FT HANCOCK 8 SSE HUDSPETH 79 79 (1980) 28
HOUSTON‑PORT HARRIS 82 80 (2003) 14
MT LOCKE JEFF DAVIS 71 71 (1995) 65
SAM RAYBURN DAM JASPER 77 77 (1980) 38
TAHOKA LYNN 77 77 (1913) 66
THOMPSONS 3 WSW FORT BEND 80 79 (1997) 45
Lowest Minimum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
DALHART MUNI AP DALLAM 49 49 (1987) 56
BORGER HUTCHINSON 51 52 (1990) 56
BOYS RANCH OLDHAM 49 51 (2004) 24
DIMMITT 2 N CASTRO 47 48 (1990) 42
LITTLEFIELD LAMB 54 54 (1987) 38
MORTON COCHRAN 52 53 (1990) 40
MULESHOE #1 BAILEY 48 50 (1988) 77
MULESHOE NWR BAILEY 49 50 (1990) 26
OLTON LAMB 51 52 (1990) 39
PANHANDLE CARSON 51 51 (1990) 42
SILVERTON BRISCOE 53 53 (1971) 40
TULIA SWISHER 48 50 (1990) 56
TURKEY HALL 53 55 (1999) 37

Climatic Averages for August

  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 93.7 111 (1943) 71.4 48 (1915) 2.63 15.70 (1914) 6.30 (1978) 24.6 0.0 5.9 0 535
Amarillo 88.7 106 (1944) 63.8 48 (1915) 2.94 7.55 (1974) 4.26 (1945) 16.5 0.0 8.4 1 345
Austin 95.6 110 (2003) 73.3 58 (1915) 2.31 9.48 (2001) 6.01 (1994) 28.2 0.0 5.2 0 610
Brownsville 92.6 104 (1915) 75.3 63 (1967) 2.99 16.58 (1880) 7.82 (1880) 28.0 0.0 7.2 0 603
College Station 96.2 110 (1903) 73.2 41 (1893) 2.63 11.25 (1915) 9.89 (1947) 27.7 0.0 5.9 0 611
Corpus Christi 93.4 103 (2000) 74.5 64 (2004) 3.54 14.79 (1980) 8.92 (1980) 27.8 0.0 6.9 0 598
Dallas‑Fort Worth 94.8 112 (1936) 74.0 55 (1915) 2.03 10.33 (1915) 5.40 (1915) 26.7 0.0 4.6 0 601
Del Rio 96.0 109 (1969) 74.1 60 (1915) 2.16 20.93 (1998) 17.03 (1998) 28.3 0.0 4.0 0 622
El Paso 92.0 108 (1980) 70.2 52 (1880) 1.75 5.57 (1984) 2.45 (1906) 24.0 0.0 8.8 0 483
Galveston 89.3 100 (2000) 79.5 67 (1966) 4.22 19.08 (1915) 11.46 (2002) 11.1 0.0 9.0 0 601
Houston 93.5 108 (1909) 73.0 54 (1891) 3.83 15.43 (1915) 9.06 (1945) 25.7 0.0 8.9 0 563
Lubbock 90.0 107 (1944) 66.0 43 (1915) 2.36 8.85 (1966) 3.78 (1966) 19.2 0.0 7.6 0 413
Midland 92.8 107 (1964) 67.9 52 (1947) 1.77 5.34 (1934) 5.32 (1934) 23.1 0.0 5.8 0 473
Port Arthur 91.7 108 (2000) 73.2 58 (1911) 4.85 17.26 (1966) 8.45 (1966) 23.8 0.0 11.8 0 546
San Angelo 93.1 111 (1943) 69.4 45 (1915) 2.05 8.13 (1971) 4.67 (1996) 25.5 0.0 5.2 0 519
San Antonio 94.7 108 (1986) 73.6 57 (1891) 2.57 11.14 (1974) 5.57 (1950) 28.0 0.0 5.2 0 601
Victoria 93.7 107 (1962) 74.6 61 (1915) 3.05 8.97 (2001) 6.14 (1964) 27.9 0.0 8.8 0 597
Waco 96.9 112 (1969) 73.5 53 (1992) 1.85 9.98 (1914) 4.80 (1958) 28.1 0.0 5.2 0 628
Wichita Falls 95.8 113 (1964) 71.3 53 (1992) 2.39 11.05 (1914) 4.62 (1971) 26.4 0.0 6.4 0 574
Shreveport, LA 93.4 110 (1909) 72.3 53 (1992) 2.71 10.89 (1912) 6.47 (1912) 25.5 0.0 6.5 0 539
Climatic averages are based on 1971-2000 monthly normals, which are provided by the National Climatic Data Center.
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