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Texas Climate Report: July 1999

July of 1999 was quite different from July of 1998, with fourteen of the twenty stations reporting below normal temperatures. At this same time last year, all twenty stations were above normal. Positive departures this year were generally less than 1°F and limited to the southern High Plains, North Central, and East Texas. Negative temperature departures were greatest from the eastern Hill Country over to the central coast, ranging from 1.5°F to 2.5°F below normal.

Although only half of the stations reported above normal precipitation, this is in stark contrast to July of 1998 when only Wichita Falls and El Paso reported above normal precipitation. The greatest rain this July was mainly north and east of the Hill Country, stretching southeastward to Houston and Galveston. The highest percentages above normal were Austin (260%), Waco (177%), and Galveston (190%). Rainfall was scarce in the Low Rolling Plains, with Abilene receiving only 3% of their normal total for July and Wichita Falls receiving only a trace of rain.

The first of week July saw moisture move in from the Gulf of Mexico, which fueled thunderstorms in the Lower Valley and along the coast from the 3rd to the 8th. Galveston received 1.52" on the 6th and another 0.80" on the 7th. On the 9th, a cold front extending from New England into North Texas brought rain to parts of Texas through the 13th. On the 10th, Lubbock set a record low maximum temperature of 73°F, as well as a record low minimum of 57°F the next morning. Rainfall rates between one and two inches per hour fell on the 11th in Southern and South Central Texas, causing minor flooding in the region. A rare tornado (F1 on the Fujita scale) struck Galveston on the 12th, causing minimal damage.

The second half of the month brought record low temperatures to some cities in South Central Texas and more rain along the Gulf Coast. Austin, in particular, set several new temperature records. On the 18th, they set a record low minimum of 69°F; on the 21st, a record low maximum of 86°F; on the 25th, a record low minimum of 69°F; and on the 29th, another record low minimum of 68°F. Corpus Christi also set a record low minimum of 69°F on the 24th. Hot, dry conditions were the story for most of Texas the last week of July. Wichita Falls recorded the state's absolute high temperature of 108°F on both the 30th and the 31st.

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 ‑0.7 103 72.5 ‑0.2 64 83.5 ‑0.5 1 0.06 3% 0.06 0 579
Amarillo 89.5 ‑2.2 97 65.4 ‑0.1 55 77.4 ‑1.2 6 2.87 110% 2.48 0 396
Austin 92.8 ‑2.2 100 73.6 ‑0.3 71 83.2 ‑1.3 12 4.43 217% 3.96 0 572
Brownsville 92.4 ‑0.9 96 75.2 ‑0.5 71 83.8 ‑0.7 11 1.86 98% 1.24 0 588
College Station 92.9 ‑0.9 100 72.4 ‑1.0 70 82.6 ‑1.0 11 2.38 104% 0.64 0 554
Corpus Christi 91.7 ‑1.6 95 73.7 ‑1.1 69 82.7 ‑1.4 13 3.07 128% 1.04 0 556
Dallas‑Fort Worth 96.4 ‑0.1 102 75.8 +1.7 71 86.1 +0.8 2 0.77 33% 0.73 0 662
Del Rio 94.0 ‑2.2 102 74.8 +0.7 71 84.4 ‑0.8 5 1.48 80% 0.71 0 610
El Paso 92.0 ‑4.1 106 70.3 +1.9 62 81.1 ‑1.2 10 2.00 130% 0.99 0 506
Galveston 87.9 +0.6 92 78.3 ‑0.9 72 83.1 ‑0.2 15 7.54 190% 2.32 0 567
Houston 92.6 ‑0.1 97 73.6 +1.2 69 83.1 +0.5 13 5.11 142% 1.62 0 568
Lubbock 92.1 +0.2 101 69.0 +1.0 57 80.5 +0.5 4 0.79 33% 0.69 0 490
Midland 94.5 ‑0.9 104 70.6 +2.1 63 82.5 +0.5 4 0.61 36% 0.58 0 553
Port Arthur 90.7 ‑1.2 95 74.5 +0.8 71 82.6 ‑0.2 14 2.45 46% 0.60 0 554
San Angelo 94.1 ‑2.1 103 71.2 +2.1 65 82.6 ‑0.1 5 0.66 62% 0.44 0 554
San Antonio 92.5 ‑2.5 99 73.2 ‑1.8 69 82.8 ‑2.2 7 1.80 83% 0.75 0 561
Victoria 90.8 ‑2.7 94 72.3 ‑2.3 67 81.6 ‑2.5 11 2.19 66% 0.73 0 520
Waco 95.5 ‑1.3 101 74.6 +0.2 70 85.0 ‑0.6 9 3.75 188% 2.26 0 628
Wichita Falls 98.7 +1.5 108 73.6 +0.9 62 86.2 +1.2 0 0.00 0% 0.00 0 664
Shreveport, LA 92.3 ‑0.7 96 73.4 +1.1 68 82.9 +0.2 10 2.80 76% 0.91 0 562
*Dep.: Departure of the monthly average temperature from the 1961-1990 monthly normal, which is provided by the National Climatic Data Center.
*Perc. Norm.: Monthly precipitation total divided by 1961-1990 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 1999 average temperatures
jul 1999 average precipitation

Monthly Extremes

Least Precipitation Overall for the Month (inches)
Station County Value
WICHITA FALLS MUNI AP WICHITA 0.00
ARCHER CITY ARCHER 0.00
AVALON ELLIS 0.00
BURKBURNETT 2 NE WICHITA 0.00
CHARLIE CLAY 0.00
GARDEN CITY GLASSCOCK 0.00
GORDONVILLE GRAYSON 0.00
HAGANSPORT FRANKLIN 0.00
HARLETON HARRISON 0.00
LAKE KEMP BAYLOR 0.00
LEATHERWOOD RCH ERATH 0.00
LIPAN PALO PINTO 0.00
MUENSTER COOKE 0.00
OAK CREEK LAKE COKE 0.00
OLNEY 5 NNW ARCHER 0.00
OZONA CROCKETT 0.00
POST GARZA 0.00
REFUGIO 3 SW REFUGIO 0.00
RISING STAR 1 S EASTLAND 0.00
SANGER DENTON 0.00
SCOTLAND ARCHER 0.00
SHERMAN GRAYSON 0.00
TRENT TAYLOR 0.00
VANDERPOOL 10 N BANDERA 0.00
WEATHERFORD PARKER 0.00
WELLINGTON COLLINGSWORTH 0.00
Greatest Precipitation Overall for the Month (inches)
Station County Value
THORNTON 1 SSE LIMESTONE 9.51
Greatest Precipitation in 24 Hours (inches)
Station County Value
THORNTON 1 SSE LIMESTONE 5.87
Lowest Average Daily Temperature (°F)
Station County Value
MT LOCKE JEFF DAVIS 70.5
Highest Average Daily Temperature (°F)
Station County Value
LAREDO 2 WEBB 88.7
Lowest Average Daily Maximum Temperature (°F)
Station County Value
CHISOS BASIN BREWSTER 81.8
MT LOCKE JEFF DAVIS 81.8
Highest Average Daily Maximum Temperature (°F)
Station County Value
LAREDO 2 WEBB 101.8
Highest Maximum Temperature  (°F)
Station County Value
HEATH CANYON BREWSTER 115
Lowest Maximum Temperature  (°F)
Station County Value
MT LOCKE JEFF DAVIS 59
Lowest Average Daily Minimum Temperature (°F)
Station County Value
MT LOCKE JEFF DAVIS 59.1
Highest Average Daily Minimum Temperature (°F)
Station County Value
PORT ARANSAS NUECES 79.8
Highest Minimum Temperature (°F)
Station County Value
STUDY BUTTE BREWSTER 84
Lowest Minimum Temperature (°F)
Station County Value
GLEN ROSE 2 W SOMERVELL 50
MT LOCKE JEFF DAVIS 50
PINE SPRINGS CULBERSON 50

New Monthly Records

Least Precipitation Overall for the Month (inches)
Station County Value Previous Record Yrs. Data
WICHITA FALLS MUNI AP WICHITA 0.00 0.00 (1943) 92
ARCHER CITY ARCHER 0.00 0.00 (1981) 60
AVALON ELLIS 0.00 0.00 (1997) 34
DALHART 6 SW HARTLEY 0.85 1.55 (1994) 10
GARDEN CITY GLASSCOCK 0.00 0.00 (1998) 84
HAGANSPORT FRANKLIN 0.00 0.00 (1986) 77
HARLETON HARRISON 0.00 0.00 (1993) 49
LAKE KEMP BAYLOR 0.00 0.00 (1980) 30
LIPAN PALO PINTO 0.00 0.00 (1998) 49
MUENSTER COOKE 0.00 0.00 (1998) 58
OAK CREEK LAKE COKE 0.00 0.00 (1980) 38
OLNEY 5 NNW ARCHER 0.00 0.00 (1983) 56
OZONA CROCKETT 0.00 0.00 (1997) 47
POST GARZA 0.00 0.00 (1998) 82
RISING STAR 1 S EASTLAND 0.00 0.00 (1997) 55
SANGER DENTON 0.00 0.00 (1993) 34
SHERMAN GRAYSON 0.00 0.00 (1916) 100
TRENT TAYLOR 0.00 0.00 (1993) 56
WEATHERFORD PARKER 0.00 0.00 (1993) 97
WELLINGTON COLLINGSWORTH 0.00 0.00 (1997) 55
Greatest Precipitation Overall for the Month (inches)
Station County Value Previous Record Yrs. Data
ELGIN BASTROP 6.41 6.40 (1979) 38
HOUSTON NWSO GALVESTON 6.63 4.67 (1905) 13
KENT 8 SE JEFF DAVIS 6.27 5.95 (1991) 11
LUFKIN 2 ANGELINA 3.95 3.17 (1997) 10
GEORGETOWN LAKE WILLIAMSON 3.88 3.25 (1992) 20
PERSIMMON GAP BREWSTER 4.26 3.08 (1986) 16
THORNTON 1 SSE LIMESTONE 9.51 5.97 (1972) 49
Greatest Precipitation in 24 Hours Ever in the Month (inches)
Station County Value Previous Record Yrs. Data
BAYTOWN HARRIS 2.55 2.22 (1987) 16
BURLESON JOHNSON 4.40 2.55 (1996) 15
CRANFILLS GAP BOSQUE 1.61 1.49 (1995) 10
DELL CITY 5 SSW HUDSPETH 1.46 1.18 (1986) 21
HOUSTON NWSO GALVESTON 2.04 1.90 (1905) 13
LUFKIN 2 ANGELINA 2.00 1.92 (1997) 10
RED BLUFF DAM REEVES 3.88 3.65 (1988) 52
SANDERSON TERRELL 3.97 3.20 (1976) 63
TEAGUE RCH GILLESPIE 2.65 2.22 (1976) 51
THORNTON 1 SSE LIMESTONE 5.87 4.75 (1972) 49
TROY BELL 3.98 3.91 (1976) 60
Lowest Average Daily Temperature (°F)
Station County Value Previous Record Yrs. Data
GLEN ROSE 2 W SOMERVELL 79.1 79.7 (1976) 36
TOLEDO BEND DAM NEWTON 79.0 79.4 (1976) 24
Lowest Average Daily Maximum Temperature (°F)
Station County Value Previous Record Yrs. Data
BISHOP NUECES 91.1 93.0 (1936) 17
CHOKE CANYON DAM LIVE OAK 94.7 94.9 (1992) 16
HUDSPETH RIVER RANCH VAL VERDE 91.6 92.1 (1990) 11
MEDINA 1NE BANDERA 90.4 90.5 (1972) 21
Highest Maximum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
FT DAVIS JEFF DAVIS 103 103 (1989) 23
LAJITAS BREWSTER 112 112 (1989) 20
Lowest Maximum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
JUNCTION KIMBLE CO AP KIMBLE 80 80 (1961) 23
MADISONVILLE MADISON 77 78 (1979) 51
PERSIMMON GAP BREWSTER 75 76 (1984) 17
PINE SPRINGS CULBERSON 67 67 (1991) 12
SANTA ROSA 3 WNW HIDALGO 81 82 (1991) 13
VICTORIA CP&L VICTORIA 79 80 (1902) 15
Lowest Average Daily Minimum Temperature (°F)
Station County Value Previous Record Yrs. Data
HARLINGEN RIO GRANDE AP CAMERON 73.3 74.2 (1960) 11
VICTORIA RGNL AP VICTORIA 72.3 72.4 (1924) 82
AUSTIN BERGSTROM AP TRAVIS 71.3 71.6 (1968) 49
YOAKUM LAVACA 68.8 69.5 (1942) 53
GLEN ROSE 2 W SOMERVELL 59.6 62.1 (1994) 36
HENRIETTA CLAY 66.6 67.2 (1906) 93
POTEET ATASCOSA 69.3 70.6 (1976) 52
SOMERVILLE DAM BURLESON 69.8 71.2 (1968) 34
TOLEDO BEND DAM NEWTON 65.0 68.9 (1994) 24
Highest Average Daily Minimum Temperature (°F)
Station County Value Previous Record Yrs. Data
DELL CITY 5 SSW HUDSPETH 67.3 67.0 (1996) 18
Highest Minimum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
CANDELARIA PRESIDIO 80 80 (1998) 33
DALHART 6 SW HARTLEY 69 69 (1990) 11
DELL CITY 5 SSW HUDSPETH 80 78 (1993) 18
MINEOLA 8 ENE WOOD 79 78 (1998) 31
YSLETA EL PASO 82 80 (1994) 58
Lowest Minimum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
BRACKETTVILLE KINNEY 55 55 (1924) 68
GAIL BORDEN 57 58 (1970) 29
PINE SPRINGS CULBERSON 50 53 (1990) 12
TURKEY HALL 55 55 (1990) 31

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 94.5 111 (1943) 71.7 48 (1915) 2.80 15.70 (1914) 6.30 (1978) 25.1 0.0 6.2 0 564
Amarillo 89.1 106 (1944) 63.8 48 (1915) 3.22 7.55 (1974) 4.26 (1945) 16.5 0.0 8.7 0 357
Austin 95.5 109 (1923) 73.9 58 (1915) 2.05 8.90 (1974) 6.01 (1994) 28.2 0.0 5.2 0 614
Brownsville 93.6 104 (1915) 75.4 63 (1967) 2.77 16.58 (1880) 7.82 (1880) 27.6 0.0 7.0 0 605
College Station 94.8 110 (1903) 73.2 41 (1893) 2.42 11.25 (1915) 9.89 (1947) 27.6 0.0 5.3 0 589
Corpus Christi 93.4 103 (1962) 75.0 64 (1967) 3.31 14.79 (1980) 8.92 (1980) 27.2 0.0 6.4 0 595
Dallas‑Fort Worth 96.2 112 (1936) 73.6 55 (1915) 2.21 10.33 (1915) 5.40 (1915) 26.8 0.0 4.6 0 617
Del Rio 96.0 109 (1969) 73.6 60 (1915) 1.47 20.93 (1998) 17.03 (1998) 28.3 0.0 4.0 0 614
El Paso 93.5 108 (1980) 66.6 52 (1880) 1.58 5.57 (1984) 2.45 (1906) 23.4 0.0 8.5 0 468
Galveston 87.7 100 (1924) 79.2 67 (1966) 4.47 19.08 (1915) 10.86 (1981) 5.9 0.0 9.1 0 574
Houston 92.5 108 (1909) 72.0 54 (1891) 3.49 15.43 (1915) 9.06 (1945) 25.5 0.0 9.2 0 536
Lubbock 89.6 107 (1944) 66.2 43 (1915) 2.51 8.85 (1966) 3.78 (1966) 18.3 0.0 7.5 0 400
Midland 94.1 107 (1964) 67.5 52 (1947) 1.69 5.34 (1934) 5.32 (1934) 23.1 0.0 6.1 0 490
Port Arthur 91.7 107 (1962) 73.3 58 (1911) 5.34 17.26 (1966) 8.45 (1966) 23.5 0.0 12.2 0 546
San Angelo 95.3 111 (1943) 68.4 45 (1915) 1.93 8.13 (1971) 4.67 (1996) 26.2 0.0 5.6 0 524
San Antonio 95.3 108 (1986) 74.5 57 (1891) 2.54 11.14 (1974) 5.57 (1950) 28.0 0.0 5.1 0 617
Victoria 93.9 107 (1962) 74.2 61 (1915) 3.01 7.81 (1960) 6.14 (1964) 27.8 0.0 8.5 0 592
Waco 97.2 112 (1969) 74.0 53 (1992) 1.68 9.98 (1914) 4.80 (1958) 28.5 0.0 5.3 0 639
Wichita Falls 95.9 113 (1964) 71.4 53 (1992) 2.48 11.05 (1914) 4.62 (1971) 26.7 0.0 6.1 0 577
Shreveport, LA 93.1 110 (1909) 71.3 53 (1992) 2.43 10.89 (1912) 6.47 (1912) 25.0 0.0 6.6 0 533
Climatic averages are based on 1961-1990 monthly normals, which are provided by the National Climatic Data Center.
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