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Texas Climate Report: September 1999

Most stations once again recorded below-normal precipitation, with drought conditions worsening for much of the state. Only three stations, Amarillo and Lubbock in the Panhandle and El Paso in extreme West Texas, had rainfall above their 30-year normal. A region extending from Del Rio northeastward across Central Texas was most lacking in precipitation. Del Rio (0%), San Antonio (2%), Austin (14%), Waco (14%), and College Station (15%) saw the least amounts. In August of 1999, all twenty stations recorded above-normal temperatures, whereas only eleven stations were above normal during September. The Panhandle was generally one to three degrees below normal for the month, and all of the Gulf Coast experienced mean monthly temperatures slightly below normal, as well.

A cold front extending from a low in the northern Central Plains passed through the Panhandle on the 5th, causing a few reports of severe weather. Reese Village in Lubbock County reported hail up to 1.75" in diameter. Another weak cold front, associated with a low pressure system near the Great Lakes, moved across Texas from the 12th to the 16th. Again, Lubbock, as well as Lynn County, reported hail up to 1.75" in diameter on the evening of the 12th.

Cold, dry air settled into much of the state behind a cold front that moved southward from the 19th through the 21st. Record low temperatures were set on the 23rd in Victoria (50°F), Austin (45°F), and Houston (49°F), and tied in College Station (47°F). The morning lows on the 24th were records in Austin (50°F) and Waco (45°F).

Another cold front associated with a low in the northern Great Lakes moved southward across Texas from the 26th through the 30th. It brought significant rainfall to the Gulf Coast including Beaumont/Port Arthur (0.68"), Corpus Christi (0.90"), and Galveston (1.28") on the 28th. High pressure behind the cold front again allowed temperatures to fall to near record lows. Austin set another record low on the 30th of 46°F.

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 88.2 +1.5 97 64.1 ‑1.2 43 76.2 +0.2 6 1.60 50% 1.47 18 358
Amarillo 77.8 ‑4.0 93 54.6 ‑1.8 33 66.2 ‑2.9 8 2.54 128% 1.12 93 135
Austin 93.7 +3.2 101 69.1 ‑0.7 54 81.4 +1.2 3 0.28 8% 0.16 0 500
Brownsville 90.0 ‑0.4 96 70.5 ‑2.7 58 80.2 ‑1.6 10 3.99 66% 1.51 0 465
College Station 92.9 +4.5 101 65.4 ‑3.3 47 79.2 +0.6 4 0.73 15% 0.63 0 431
Corpus Christi 89.7 95 69.5 ‑2.8 56 79.6 ‑1.4 6 3.88 70% 2.37 0 444
Dallas‑Fort Worth 90.0 +2.2 99 67.9 +1.0 51 78.9 +1.5 5 2.30 68% 1.02 0 425
Del Rio 92.3 +1.9 100 69.8 +0.7 51 81.0 +1.2 0 0.00 0% 0.00 0 491
El Paso 86.9 ‑0.2 94 63.9 +2.3 49 75.4 +1.0 7 1.94 114% 1.45 4 324
Galveston 87.0 +2.5 95 73.8 ‑1.6 64 80.4 +0.4 10 3.95 67% 1.29 0 470
Houston 91.6 +3.2 99 64.3 ‑3.6 49 77.9 ‑0.3 3 1.36 28% 1.25 0 395
Lubbock 81.9 ‑1.0 96 58.0 ‑1.4 38 70.0 ‑1.1 5 3.27 126% 1.98 46 204
Midland 87.2 +1.8 97 62.7 +1.6 45 75.0 +1.7 5 0.95 36% 0.75 16 320
Port Arthur 89.4 +2.1 97 67.0 ‑2.7 52 78.2 ‑0.4 N/A N/A N/A 2.00 0 403
San Angelo 90.7 +3.9 98 64.0 42 77.3 +1.9 6 0.76 22% 0.33 5 382
San Antonio 92.2 +2.9 99 68.3 ‑0.9 49 80.3 +1.0 2 0.05 1% 0.03 0 467
Victoria 91.4 +2.5 98 66.1 ‑4.2 50 78.7 ‑0.9 7 3.78 68% 1.54 0 419
Waco 92.4 +2.8 100 66.7 ‑0.9 45 79.6 +1.0 4 0.51 14% 0.22 2 449
Wichita Falls 89.1 +2.3 100 62.7 ‑1.2 44 75.9 +0.5 4 1.76 46% 1.05 14 348
Shreveport, LA 86.4 ‑0.9 93 64.1 ‑1.9 47 75.2 ‑1.5 8 4.90 157% 4.16 2 317
*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.

sep 1999 average temperatures
sep 1999 average precipitation

Monthly Extremes

Least Precipitation Overall for the Month (inches)
Station County Value
DRYDEN TERRELL CO AP TERRELL 0.00
DEL RIO INTL AP VAL VERDE 0.00
ACTON RCH CROCKETT 0.00
BANKERSMITH GILLESPIE 0.00
BATESVILLE ZAVALA 0.00
BELMONT GONZALES 0.00
BIG WELLS 2W DIMMIT 0.00
BLANCO BLANCO 0.00
CANYON DAM #1 COMAL 0.00
CARRIZO SPRINGS 3W DIMMIT 0.00
DAVILLA MILAM 0.00
DERBY 1 S FRIO 0.00
FALLS CITY 7 WSW WILSON 0.00
FEDOR LEE 0.00
FLORENCE 3 SE WILLIAMSON 0.00
FLORESVILLE WILSON 0.00
GIDDINGS 5 E LEE 0.00
GONZALES 10 SW GONZALES 0.00
HUDSPETH RIVER RANCH VAL VERDE 0.00
LANGTRY VAL VERDE 0.00
LEAKEY REAL 0.00
LEATHERWOOD RCH ERATH 0.00
LLANO LLANO 0.00
MCCOY ATASCOSA 0.00
NEW BRAUNFELS COMAL 0.00
OZONA CROCKETT 0.00
PANDALE 1 N VAL VERDE 0.00
PANDALE 11 NE VAL VERDE 0.00
PORT O CONNOR CALHOUN 0.00
PRADE RCH REAL 0.00
RICHLAND SPRINGS SAN SABA 0.00
ROUND MTN BLANCO 0.00
SCHULENBURG FAYETTE 0.00
SHEFFIELD PECOS 0.00
SPICEWOOD BURNET 0.00
TOW LLANO 0.00
WACO MCLENNAN 0.00
WATER VALLEY 11 NNE COKE 0.00
Greatest Precipitation Overall for the Month (inches)
Station County Value
KINGSVILLE NAAS KLEBERG 8.51
Greatest Precipitation in 24 Hours (inches)
Station County Value
CLEVELAND LIBERTY 6.00
Lowest Average Daily Temperature (°F)
Station County Value
DIMMITT 2 N CASTRO 65.8
PERRYTON OCHILTREE 65.8
Highest Average Daily Temperature (°F)
Station County Value
HEATH CANYON BREWSTER 84.0
Lowest Average Daily Maximum Temperature (°F)
Station County Value
FOLLETT LIPSCOMB 77.3
Highest Average Daily Maximum Temperature (°F)
Station County Value
HEATH CANYON BREWSTER 98.9
Highest Maximum Temperature  (°F)
Station County Value
HEATH CANYON BREWSTER 108
Lowest Maximum Temperature  (°F)
Station County Value
SILVERTON BRISCOE 50
Lowest Average Daily Minimum Temperature (°F)
Station County Value
GLEN ROSE 2 W SOMERVELL 49.0
Highest Average Daily Minimum Temperature (°F)
Station County Value
SOUTH PADRE ISLAND CAMERON 77.1
Highest Minimum Temperature (°F)
Station County Value
PORT ARANSAS NUECES 82
ROCKPORT ARANSAS 82
Lowest Minimum Temperature (°F)
Station County Value
BRAVO HARTLEY 31

New Monthly Records

Least Precipitation Overall for the Month (inches)
Station County Value Previous Record Yrs. Data
DEL RIO INTL AP VAL VERDE 0.00 0.00 (1931) 94
ALVARADO 4NE JOHNSON 0.94 0.96 (1994) 13
ANDICE 2 SW WILLIAMSON 0.08 0.40 (1983) 31
BANKERSMITH GILLESPIE 0.00 0.22 (1989) 20
BATESVILLE ZAVALA 0.00 0.00 (1977) 34
BELLVILLE 6 NNE AUSTIN 0.34 0.72 (1982) 19
BERTRAM 3 ENE BURNET 0.08 0.08 (1983) 32
BIG WELLS 2W DIMMIT 0.00 0.00 (1989) 74
BLANCO BLANCO 0.00 0.00 (1931) 102
BULVERDE COMAL 0.02 0.05 (1992) 58
CANYON DAM COMAL 0.09 0.54 (1981) 37
CARRIZO SPRINGS 3W DIMMIT 0.00 0.00 (1954) 67
CENTER CITY MILLS 0.05 0.10 (1977) 37
CHARLOTTE 5 NNW ATASCOSA 0.08 0.14 (1989) 38
COMFORT 2 KENDALL 0.08 0.79 (1992) 10
COPPERAS COVE 5 NW CORYELL 0.35 1.00 (1997) 16
DAVILLA MILAM 0.00 0.29 (1956) 46
DERBY 1 S FRIO 0.00 0.00 (1979) 21
DIME BOX LEE 0.08 0.25 (1955) 53
DRIPPING SPRINGS 6 E HAYS 0.23 0.29 (1989) 15
ELGIN BASTROP 0.31 0.37 (1989) 37
FALLS CITY 7 WSW WILSON 0.00 0.00 (1947) 53
FEDOR LEE 0.00 0.00 (1981) 36
FLORENCE 3 SE WILLIAMSON 0.00 0.00 (1994) 33
FLORESVILLE WILSON 0.00 0.00 (1950) 76
FRANKLIN ROBERTSON 0.47 0.48 (1989) 34
FREDERICKSBURG GILLESPIE 0.01 0.11 (1947) 77
GIDDINGS 5 E LEE 0.00 0.42 (1948) 60
HORDS CREEK DAM COLEMAN 0.22 0.31 (1954) 47
HUDSPETH RIVER RANCH VAL VERDE 0.00 0.24 (1992) 12
JOHNSON CITY BLANCO 0.04 0.74 (1989) 31
KARNES CITY 2 N KARNES 0.20 0.32 (1929) 71
KATY WOLF HILL HARRIS 0.05 0.60 (1995) 24
KENT 8 SE JEFF DAVIS 0.33 0.53 (1993) 12
LANGTRY VAL VERDE 0.00 0.00 (1938) 49
LEAKEY REAL 0.00 0.12 (1989) 12
LLANO LLANO 0.00 0.00 (1907) 103
LONG LAKE ANDERSON 0.99 0.99 (1983) 28
MILLER RCH SAN SABA 0.07 0.18 (1979) 37
NEW BRAUNFELS COMAL 0.00 0.07 (1893) 99
GEORGETOWN LAKE WILLIAMSON 0.07 0.72 (1989) 20
NORTHINGTON RCH KENDALL 0.89 1.24 (1986) 14
OAKWOOD FREESTONE 0.99 0.99 (1983) 28
OZONA CROCKETT 0.00 0.00 (1998) 51
PANDALE 1 N VAL VERDE 0.00 0.00 (1982) 44
PANDALE 11 NE VAL VERDE 0.00 0.10 (1992) 18
PIDCOKE CORYELL 0.27 1.06 (1992) 13
PORT O CONNOR CALHOUN 0.00 0.00 (1989) 41
POTEET ATASCOSA 0.13 0.37 (1989) 55
PRADE RCH REAL 0.00 0.15 (1989) 35
RED ROCK BASTROP 0.06 0.50 (1989) 34
RICHLAND SPRINGS SAN SABA 0.00 0.00 (1997) 49
ROCKDALE MILAM 0.26 0.26 (1994) 35
ROUND MTN BLANCO 0.00 0.00 (1956) 52
SCHULENBURG FAYETTE 0.00 0.32 (1956) 53
SAN ANTONIO/SEAWORLD BEXAR 0.31 0.32 (1997) 12
SHEFFIELD PECOS 0.00 0.00 (1992) 36
SPICEWOOD BURNET 0.00 0.49 (1989) 31
SPRING BRANCH 2SE COMAL 0.18 0.30 (1956) 41
STOCKDALE 6N WILSON 0.21 0.68 (1992) 25
THORNDALE MILAM 0.25 0.25 (1994) 32
THREE RIVERS 8 NE LIVE OAK 0.10 0.31 (1993) 12
TOW LLANO 0.00 0.38 (1992) 20
WATER VALLEY 11 NNE COKE 0.00 0.04 (1960) 39
WATSON BURNET 0.52 0.57 (1989) 32
WHITSETT LIVE OAK 0.20 0.41 (1981) 33
WIMBERLEY 1 NW HAYS 0.07 0.80 (1993) 14
Greatest Precipitation Overall for the Month (inches)
Station County Value Previous Record Yrs. Data
DOUGLASS 1 S NACOGDOCHES 6.70 6.27 (1998) 11
HEREFORD DEAF SMITH 5.29 4.79 (1950) 67
Greatest Precipitation in 24 Hours Ever in the Month (inches)
Station County Value Previous Record Yrs. Data
HEREFORD DEAF SMITH 3.26 2.75 (1941) 67
HIGGINS 1 N LIPSCOMB 3.10 2.76 (1985) 51
LUFKIN 11 NW ANGELINA 4.27 3.93 (1995) 17
LUFKIN 2 ANGELINA 2.60 2.45 (1998) 10
PLEASANTON ATASCOSA 2.98 1.58 (1998) 10
STILLHOUSE HOLLOW DAM BELL 4.09 3.25 (1970) 37
Highest Average Daily Temperature (°F)
Station County Value Previous Record Yrs. Data
PANDALE 11 NE VAL VERDE 79.3 79.2 (1998) 16
Highest Average Daily Maximum Temperature (°F)
Station County Value Previous Record Yrs. Data
DRIPPING SPRINGS 6 E HAYS 93.6 92.3 (1993) 15
FRANKLIN ROBERTSON 94.2 94.0 (1977) 31
GEORGETOWN LAKE WILLIAMSON 93.4 93.2 (1988) 19
PANDALE 11 NE VAL VERDE 92.0 92.0 (1982) 16
SAN ANTONIO/SEAWORLD BEXAR 93.5 93.4 (1997) 12
SOMERVILLE DAM BURLESON 94.7 93.8 (1993) 33
THOMPSONS 3 WSW FORT BEND 93.3 93.3 (1995) 39
Highest Maximum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
DEWEYVILLE NEWTON 97 96 (1995) 14
ORANGE 9 N ORANGE 97 96 (1995) 14
PROCTOR RSVR COMANCHE 106 106 (1977) 36
SAN ANTONIO/SEAWORLD BEXAR 100 100 (1997) 12
THOMPSONS 3 WSW FORT BEND 100 100 (1944) 39
Lowest Maximum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
ARANSAS WR ARANSAS 70 70 (1985) 39
BENAVIDES 2 DUVAL 66 67 (1991) 28
BISHOP NUECES 67 75 (1938) 16
COPPER BREAKS SP HARDEMAN 58 58 (1995) 11
Lowest Average Daily Minimum Temperature (°F)
Station County Value Previous Record Yrs. Data
HARLINGEN RIO GRANDE AP CAMERON 69.2 70.6 (1960) 13
VICTORIA RGNL AP VICTORIA 66.1 66.8 (1909) 90
AUSTIN BERGSTROM AP TRAVIS 63.8 64.8 (1968) 51
YOAKUM LAVACA 62.5 64.0 (1942) 53
DEWEYVILLE NEWTON 63.4 64.8 (1994) 14
GLEN ROSE 2 W SOMERVELL 49.0 51.8 (1993) 35
ORANGE 9 N ORANGE 63.4 64.8 (1994) 14
REFUGIO 2 NW REFUGIO 66.6 67.1 (1989) 15
SAM RAYBURN DAM JASPER 57.8 59.4 (1993) 32
SOMERVILLE DAM BURLESON 60.8 62.2 (1974) 33
TOLEDO BEND DAM NEWTON 61.5 61.9 (1994) 25
WASHINGTON SP WASHINGTON 61.4 62.7 (1989) 47
Highest Minimum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
ANDREWS ANDREWS 74 74 (1977) 35
DELL CITY 5 SSW HUDSPETH 69 69 (1983) 20
LAKE FORK RSVR WOOD 75 75 (1991) 11
LAKE KEMP BAYLOR 80 78 (1998) 27
Lowest Minimum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
STEPHENVILLE CLARK FLD ERATH 40 40 (1989) 50
HARLINGEN RIO GRANDE AP CAMERON 59 62 (1960) 13
AUSTIN BERGSTROM AP TRAVIS 45 45 (1967) 51
BENBROOK DAM TARRANT 40 41 (1984) 46
BRECKENRIDGE STEPHENS 39 39 (1984) 65
CHANNING 2 HARTLEY 32 34 (1995) 13
DEWEYVILLE NEWTON 46 49 (1994) 14
HOUSTON NWSO GALVESTON 50 50 (1994) 11
LAMESA 1 SSE DAWSON 36 36 (1989) 69
ORANGE 9 N ORANGE 46 49 (1994) 14
PROCTOR RSVR COMANCHE 38 38 (1989) 37
SAM RAYBURN DAM JASPER 39 39 (1993) 32
WRIGHT PATMAN DAM CASS 40 40 (1983) 24

Climatic Averages for October

  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 77.9 103 (1979) 54.8 23 (1993) 2.51 10.88 (1941) 6.08 (1981) 2.4 0.2 5.5 75 118
Amarillo 72.5 95 (1954) 44.5 12 (1993) 1.37 7.64 (1941) 3.03 (1998) 1.1 1.8 4.7 226 25
Austin 82.1 100 (1938) 60.0 30 (1993) 3.43 12.63 (1925) 7.51 (1998) 3.7 0.0 6.7 17 206
Brownsville 85.3 99 (1900) 66.1 35 (1993) 2.80 17.12 (1958) 9.09 (1996) 5.5 0.0 6.5 0 332
College Station 80.2 102 (1938) 58.6 29 (1993) 3.81 18.77 (1994) 13.39 (1994) 2.5 0.0 6.5 31 167
Corpus Christi 83.9 98 (1950) 63.9 28 (1993) 3.02 12.03 (1997) 7.96 (1995) 5.0 0.0 6.3 0 281
Dallas‑Fort Worth 78.5 106 (1951) 55.8 24 (1917) 3.52 14.18 (1981) 4.85 (1959) 3.1 0.0 6.2 51 119
Del Rio 81.7 106 (1979) 59.7 28 (1993) 2.24 11.69 (1930) 7.60 (1969) 3.9 0.0 5.0 19 196
El Paso 78.4 96 (1994) 49.6 25 (1970) 0.76 5.15 (1884) 1.84 (1883) 1.6 0.4 4.4 88 57
Galveston 77.5 94 (1952) 68.0 39 (1993) 2.84 17.78 (1871) 14.01 (1901) 0.0 0.0 5.8 7 248
Houston 81.6 99 (1900) 57.6 29 (1993) 4.27 17.64 (1949) 9.31 (1984) 2.7 0.0 6.7 31 174
Lubbock 74.7 98 (1979) 48.1 18 (1993) 1.86 10.80 (1983) 5.82 (1983) 1.0 0.9 4.9 154 42
Midland 77.3 100 (1979) 50.6 24 (1993) 1.74 7.45 (1986) 3.59 (1985) 2.2 0.1 4.4 106 75
Port Arthur 80.2 99 (1905) 59.2 30 (1993) 4.29 15.09 (1970) 9.26 (1902) 1.7 0.0 5.9 26 172
San Angelo 78.8 100 (1951) 53.6 26 (1997) 2.40 8.68 (1981) 5.11 (1959) 2.6 0.1 5.0 71 108
San Antonio 81.7 99 (1991) 58.8 27 (1993) 3.17 18.07 (1998) 13.35 (1998) 4.1 0.0 6.8 30 191
Victoria 82.4 109 (1926) 60.9 31 (1993) 3.46 17.25 (1960) 8.15 (1994) 4.1 0.0 6.4 15 223
Waco 80.3 101 (1989) 56.8 25 (1993) 3.36 10.51 (1984) 5.72 (1974) 4.2 0.0 6.0 38 146
Wichita Falls 76.9 102 (1979) 52.2 21 (1993) 2.74 11.77 (1941) 5.61 (1959) 3.6 0.2 6.0 104 91
Shreveport, LA 78.7 99 (1938) 54.3 28 (1993) 3.73 14.02 (1949) 6.83 (1949) 2.5 0.2 6.6 63 110
Climatic averages are based on 1961-1990 monthly normals, which are provided by the National Climatic Data Center.
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