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Texas Climate Report: April 1999

Most of the state experienced slightly above normal temperatures for the month of April. The mean monthly temperatures were barely below normal for El Paso, San Angelo, Lubbock, and Amarillo where departures from normal ranged between -0.1°F and -2.0°F. Areas in the Panhandle and the Low Rolling Plains dealt with way above normal precipitation totals for the whole month. A small area encompassing San Angelo and Del Rio also dealt with above normal precipitation. As far as the rest of Texas was concerned, precipitation was below normal during April.

A front passed through Texas during the first few days of April bringing showers and storms to areas in Central and East Texas. Reports of small hail and wind damage were numerous as the thunderstorms progressed from west to east. Once the system exited to the east clear and warm weather followed for the Lone Star State. Record high minimum temperatures occurred at Houston on the 7th (72°F) and 8th (74°F). Del Rio and Austin also set record high minimum temperatures on the 8th when their respective low temperatures only fell to 70°F and 69°F. On the 11th a record high temperature was set at Galveston with the temperature reading climbing to 82°F.

A slow moving system crossed Texas from the 12th to the 14th. The storms caused winds to gust to 60 mph in Dalhart, TX and 59 mph in Childress, TX. Observations of large hail (baseball) and possible small tornadoes were common in the High Plains and the Low Rolling Plains on the 13th. Nearly an inch of rain was reported at Easterwood Field in College Station on the 14th alone. Much colder temperatures eventually encompassed all of Texas as the low-pressure system entered into Louisiana.

Nearing the end of the month (18th to the 24th) topsoil turned dry again in southern Texas. Storms that originally formed in Southeast Texas late on the 25th eventually stretched into a large squall line as they crossed the state. The squall line affected areas adjacent to the Gulf of Mexico as well as the areas bordering Oklahoma. Once again hail, heavy rains, strong winds and possible tornadoes were reported as the squall line crossed through Texas.

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 78.0 +0.2 95 52.9 37 65.5 +0.1 5 1.49 78% 0.78 98 120
Amarillo 68.4 ‑3.1 88 41.1 ‑1.0 30 54.8 ‑2.0 10 6.30 636% 2.65 305 5
Austin 81.6 +2.2 89 61.9 +2.1 42 71.8 +2.2 7 0.79 31% 0.39 21 231
Brownsville 85.1 +1.1 94 69.8 +3.3 48 77.5 +2.2 1 0.14 9% 0.14 3 383
College Station 81.0 +2.7 90 59.7 +1.7 36 70.3 +2.1 6 2.54 75% 1.45 36 203
Corpus Christi 82.6 +0.9 92 66.7 +3.5 44 74.7 +2.2 2 0.88 51% 0.85 6 303
Dallas‑Fort Worth 78.3 +2.0 87 57.5 +2.8 38 67.9 +2.4 5 2.74 78% 1.04 39 134
Del Rio 84.7 +1.3 98 61.7 +2.5 43 73.2 +1.9 8 3.17 160% 2.33 16 271
El Paso 77.7 ‑1.0 91 48.7 +0.7 35 63.2 ‑0.2 0 0.00 0% 0.00 114 67
Galveston 78.4 +4.9 85 68.0 +3.0 52 73.2 +3.9 1 0.32 13% 0.32 5 258
Houston 83.7 +5.3 91 62.2 +4.1 38 73.0 +4.7 4 1.06 33% 0.42 25 270
Lubbock 73.7 ‑1.7 92 45.8 ‑0.9 35 59.8 ‑1.3 8 3.56 367% 1.54 181 32
Midland 79.7 ‑0.1 96 50.3 +0.9 31 65.0 +0.4 5 0.19 23% 0.10 104 111
Port Arthur 81.0 +2.7 90 63.7 +4.2 41 72.3 +3.4 3 0.74 21% 0.59 22 251
San Angelo 81.0 ‑0.2 96 52.8 +0.1 31 66.9 ‑0.1 6 1.85 111% 1.47 83 149
San Antonio 81.4 +1.1 89 61.0 +2.6 37 71.2 +1.9 6 0.91 36% 0.50 32 225
Victoria 80.9 +0.7 88 62.0 +1.0 38 71.5 +0.9 1 0.32 13% 0.32 23 223
Waco 79.8 +1.8 89 57.4 +1.2 35 68.6 +1.5 6 2.04 64% 2.04 45 159
Wichita Falls 75.4 ‑0.4 91 51.6 +1.3 34 63.5 +0.4 8 3.78 126% 2.63 105 69
Shreveport, LA 80.1 +3.0 89 58.6 +4.5 37 69.3 +3.7 6 7.88 210% 5.15 41 180
*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.

apr 1999 average temperatures
apr 1999 average precipitation

Monthly Extremes

Least Precipitation Overall for the Month (inches)
Station County Value
PRESIDIO PRESIDIO 0.00
EL PASO INTL AP EL PASO 0.00
CORNUDAS SVC STN HUDSPETH 0.00
DELL CITY 5 SSW HUDSPETH 0.00
EXXON GAS PLANT KLEBERG 0.00
FREER DUVAL 0.00
HEBBRONVILLE JIM HOGG 0.00
LA JOYA HIDALGO 0.00
MERCEDES 6 SSE HIDALGO 0.00
PECOS REEVES 0.00
PORT ISABEL CAMERON 0.00
PORT O CONNOR CALHOUN 0.00
RAYMONDVILLE WILLACY 0.00
SOUTH PADRE ISLAND CAMERON 0.00
VALENTINE JEFF DAVIS 0.00
WESLACO HIDALGO 0.00
YSLETA EL PASO 0.00
ZAPATA 1 S ZAPATA 0.00
Greatest Precipitation Overall for the Month (inches)
Station County Value
WOODVILLE TYLER 9.85
Greatest Precipitation in 24 Hours (inches)
Station County Value
WOODVILLE TYLER 7.80
Lowest Average Daily Temperature (°F)
Station County Value
DALHART 6 SW HARTLEY 50.6
Highest Average Daily Temperature (°F)
Station County Value
FALCON DAM STARR 80.6
Lowest Average Daily Maximum Temperature (°F)
Station County Value
PERRYTON OCHILTREE 65.8
Highest Average Daily Maximum Temperature (°F)
Station County Value
BOQUILLAS RS BREWSTER 95.0
Highest Maximum Temperature  (°F)
Station County Value
HEATH CANYON BREWSTER 107
LAREDO 2 WEBB 107
Lowest Maximum Temperature  (°F)
Station County Value
PERRYTON OCHILTREE 41
Lowest Average Daily Minimum Temperature (°F)
Station County Value
DALHART 6 SW HARTLEY 34.5
Highest Average Daily Minimum Temperature (°F)
Station County Value
PORT ISABEL CAMERON 72.8
Highest Minimum Temperature (°F)
Station County Value
CONROE MONTGOMERY 79
Lowest Minimum Temperature (°F)
Station County Value
GLEN ROSE 2 W SOMERVELL 17

New Monthly Records

Least Precipitation Overall for the Month (inches)
Station County Value Previous Record Yrs. Data
PRESIDIO PRESIDIO 0.00 0.00 (1998) 69
EL PASO INTL AP EL PASO 0.00 0.00 (1991) 120
CORNUDAS SVC STN HUDSPETH 0.00 0.00 (1998) 53
DELL CITY 5 SSW HUDSPETH 0.00 0.00 (1998) 19
FREER DUVAL 0.00 0.00 (1983) 46
HEBBRONVILLE JIM HOGG 0.00 0.00 (1984) 87
HOUSTON NWSO GALVESTON 0.65 0.88 (1998) 12
LUFKIN 2 ANGELINA 1.05 2.58 (1992) 10
MERCEDES 6 SSE HIDALGO 0.00 0.00 (1998) 81
PECOS REEVES 0.00 0.00 (1998) 68
PORT ISABEL CAMERON 0.00 0.00 (1988) 67
PORT O CONNOR CALHOUN 0.00 0.00 (1998) 43
RAYMONDVILLE WILLACY 0.00 0.00 (1983) 85
VALENTINE JEFF DAVIS 0.00 0.00 (1998) 21
WESLACO HIDALGO 0.00 0.00 (1998) 82
YSLETA EL PASO 0.00 0.00 (1998) 60
ZAPATA 1 S ZAPATA 0.00 0.00 (1998) 38
Greatest Precipitation Overall for the Month (inches)
Station County Value Previous Record Yrs. Data
BOYS RANCH OLDHAM 6.39 5.51 (1997) 16
DARROUZETT LIPSCOMB 7.84 5.29 (1997) 56
DUMAS MOORE 6.11 4.25 (1997) 56
FOLLETT LIPSCOMB 8.11 5.39 (1976) 64
LIPSCOMB LIPSCOMB 6.37 6.24 (1997) 49
Greatest Precipitation in 24 Hours Ever in the Month (inches)
Station County Value Previous Record Yrs. Data
ABERNATHY HALE 2.26 2.10 (1997) 54
BOYS RANCH OLDHAM 2.10 2.00 (1990) 16
CASTOLON BREWSTER 1.53 0.75 (1990) 25
CHANNING 2 HARTLEY 2.17 1.42 (1970) 17
COLDSPRING 5 SSW SAN JACINTO 5.19 4.25 (1982) 45
DACUS MONTGOMERY 4.72 3.90 (1968) 44
DARROUZETT LIPSCOMB 3.12 2.05 (1949) 56
DUMAS MOORE 4.05 2.27 (1990) 56
KOUNTZE HARDIN 2.58 2.34 (1949) 13
LITTLEFIELD LAMB 2.25 1.75 (1997) 32
NEWTON NEWTON 6.10 4.00 (1984) 15
PERRYTON 21 S OCHILTREE 2.78 2.70 (1985) 20
PLAINS YOAKUM 4.00 2.50 (1977) 56
SAM RAYBURN DAM JASPER 4.26 4.02 (1992) 32
Highest Average Daily Temperature (°F)
Station County Value Previous Record Yrs. Data
BEAUMONT RSCH CTR JEFFERSON 72.5 72.3 (1948) 33
DEWEYVILLE NEWTON 71.5 69.5 (1991) 13
DRIPPING SPRINGS 6 E HAYS 70.6 70.5 (1986) 15
HOUSTON NWSO GALVESTON 71.5 71.4 (1991) 12
JEFFERSON MARION 66.8 66.2 (1906) 21
LAKE FORK RSVR WOOD 67.4 64.8 (1991) 11
NACOGDOCHES NACOGDOCHES 71.0 70.7 (1981) 26
GEORGETOWN LAKE WILLIAMSON 69.8 69.8 (1986) 17
ORANGE 9 N ORANGE 71.5 69.5 (1991) 13
PILOT POINT ISL DU BOI DENTON 68.2 68.2 (1963) 36
SANTA ROSA 3 WNW HIDALGO 78.5 77.8 (1991) 13
SAN ANTONIO/SEAWORLD BEXAR 72.2 71.5 (1991) 11
TEXARKANA BOWIE 66.5 65.9 (1991) 24
TYLER SMITH 69.7 68.1 (1985) 15
Highest Average Daily Maximum Temperature (°F)
Station County Value Previous Record Yrs. Data
GALVESTON SCHOLES FLD GALVESTON 78.4 78.0 (1967) 125
GALVESTON GALVESTON 80.5 78.0 (1967) 125
ALVIN BRAZORIA 85.1 83.0 (1967) 36
BAYTOWN HARRIS 81.2 81.1 (1985) 16
DEWEYVILLE NEWTON 80.9 79.0 (1987) 13
HOUSTON NWSO GALVESTON 81.1 78.6 (1991) 12
LAREDO 2 WEBB 93.0 92.4 (1967) 32
NACOGDOCHES NACOGDOCHES 81.9 81.1 (1981) 26
ORANGE 9 N ORANGE 80.9 79.0 (1987) 13
PORT ARANSAS NUECES 79.4 78.4 (1986) 13
SAM RAYBURN DAM JASPER 82.1 81.7 (1981) 32
SANTA ROSA 3 WNW HIDALGO 88.7 86.1 (1996) 13
TOLEDO BEND DAM NEWTON 81.3 81.1 (1981) 23
Highest Maximum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
ALVIN BRAZORIA 94 92 (1987) 36
COPE RCH REAGAN 98 98 (1996) 32
COPPER BREAKS SP HARDEMAN 98 98 (1998) 10
TOLEDO BEND DAM NEWTON 90 90 (1997) 23
Highest Average Daily Minimum Temperature (°F)
Station County Value Previous Record Yrs. Data
BEAUMONT RSCH CTR JEFFERSON 62.8 62.6 (1981) 33
COPPER BREAKS SP HARDEMAN 48.1 47.3 (1990) 10
DEKALB BOWIE 56.5 56.3 (1981) 18
DEWEYVILLE NEWTON 62.2 62.2 (1991) 13
LAKE FORK RSVR WOOD 57.8 53.6 (1991) 11
ORANGE 9 N ORANGE 62.2 62.2 (1991) 13
SAN ANTONIO/SEAWORLD BEXAR 62.4 62.2 (1991) 11
TYLER SMITH 58.7 57.7 (1991) 15
Highest Minimum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
HONDO MUNI AP MEDINA 72 72 (1996) 23
FT WORTH MEACHAM FLD TARRANT 70 70 (1995) 22
TYLER POUNDS FLD SMITH 73 71 (1945) 27
CASTOLON BREWSTER 75 74 (1980) 20
CONROE MONTGOMERY 79 78 (1899) 70
CRYSTAL CITY ZAVALA 75 75 (1996) 45
FRANKLIN ROBERTSON 74 74 (1994) 33
GAINESVILLE 5 ENE COOKE 67 65 (1995) 12
GILMER 4 WNW UPSHUR 72 72 (1994) 58
KERRVILLE 3 NNE KERR 69 69 (1994) 24
LAJITAS BREWSTER 76 73 (1989) 19
LAKE FORK RSVR WOOD 70 70 (1994) 11
NACOGDOCHES NACOGDOCHES 75 74 (1996) 26
SAN SABA SAN SABA 72 72 (1970) 51
SAN ANTONIO/SEAWORLD BEXAR 72 72 (1994) 11
TEXARKANA BOWIE 72 71 (1994) 24
Lowest Minimum Temperature Ever in the Month (°F)
Station County Value Previous Record Yrs. Data
AUSTIN BERGSTROM AP TRAVIS 31 31 (1980) 50
SAM RAYBURN DAM JASPER 24 27 (1996) 32
TOLEDO BEND DAM NEWTON 30 30 (1996) 24

Climatic Averages for May

  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 84.4 107 (1967) 61.1 33 (1907) 2.97 13.19 (1957) 6.78 (1908) 8.3 0.0 7.5 7 245
Amarillo 79.1 103 (1996) 51.6 26 (1907) 2.48 9.81 (1951) 6.75 (1951) 4.7 0.1 7.9 89 102
Austin 84.7 104 (1925) 66.5 40 (1925) 4.78 14.10 (1895) 6.16 (1929) 6.7 0.0 9.3 0 329
Brownsville 87.8 102 (1974) 72.0 41 (1895) 2.94 9.12 (1982) 7.38 (1929) 9.2 0.0 5.2 0 462
College Station 84.0 101 (1906) 65.0 42 (1954) 4.80 14.70 (1929) 7.36 (1983) 4.5 0.0 8.0 0 298
Corpus Christi 86.2 103 (1984) 69.5 45 (1925) 3.33 10.44 (1941) 6.60 (1926) 5.1 0.0 6.4 0 400
Dallas‑Fort Worth 82.9 107 (1927) 62.6 34 (1903) 4.88 13.66 (1982) 6.99 (1908) 4.5 0.0 8.7 0 246
Del Rio 88.2 108 (1927) 66.3 45 (1970) 2.03 10.23 (1957) 3.97 (1942) 13.7 0.0 6.9 0 381
El Paso 87.1 104 (1951) 56.5 31 (1967) 0.25 4.22 (1992) 2.40 (1992) 12.8 0.0 2.1 7 217
Galveston 79.8 94 (1984) 71.8 52 (1954) 3.59 11.03 (1991) 7.71 (1975) 0.1 0.0 6.4 0 335
Houston 84.6 99 (1996) 64.4 44 (1978) 5.24 15.87 (1907) 10.36 (1989) 4.7 0.0 8.0 0 295
Lubbock 83.1 105 (1996) 55.8 29 (1917) 2.35 12.69 (1941) 5.14 (1949) 8.1 0.1 6.8 25 162
Midland 87.4 108 (1989) 58.1 34 (1970) 1.98 7.63 (1992) 4.75 (1968) 11.7 0.0 5.6 10 252
Port Arthur 84.1 101 (1905) 66.3 45 (1917) 5.71 20.58 (1923) 12.76 (1923) 2.7 0.0 7.5 0 316
San Angelo 87.4 107 (1989) 61.1 35 (1967) 3.00 11.24 (1987) 3.12 (1987) 11.7 0.0 7.3 7 292
San Antonio 85.3 103 (1989) 65.7 43 (1984) 4.22 14.07 (1935) 6.82 (1937) 7.7 0.0 8.9 0 326
Victoria 85.3 102 (1928) 67.7 45 (1954) 4.50 14.66 (1993) 8.45 (1972) 5.8 0.0 7.1 0 360
Waco 84.4 102 (1985) 64.2 37 (1981) 4.58 15.00 (1965) 7.18 (1953) 7.5 0.0 8.6 0 288
Wichita Falls 83.3 108 (1998) 59.1 36 (1979) 4.07 13.22 (1982) 5.70 (1975) 8.3 0.0 8.6 10 202
Shreveport, LA 83.2 102 (1998) 62.0 42 (1960) 5.18 14.47 (1884) 8.35 (1908) 3.7 0.0 9.0 0 239
Climatic averages are based on 1961-1990 monthly normals, which are provided by the National Climatic Data Center.
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