Hot, Humid Weather in Texas

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The information here tells how often heat combines with humidity in Texas cities to create uncomfortably muggy weather.

The apparent temperature, also known as the Heat Index, measures how hot the weather really feels, considering both temperature and humidity. For instance, a temperature of 90 degrees Fahrenheit (32.2 ° Celsius) along with 60 % humidity pushes the apparent temperature to 100 °F (37.8 °C).

At low levels of humidity, high temperatures seem cooler than what the thermometer reads. This sometimes is the case for hot weather in Texas.

These tables list the number of days when the actual temperature and the apparent temperature rose to least 95, 105 or 115 °F (35, 40.6 or 46.1 °C) for an hour or more. The totals are for the 30 years from 1978 to 2007.

The final table breaks the totals into yearly averages for the days when apparent temperatures reach 95 and 105 °F.

Total days with the temperature at least 95 °F
City Actual Apparent
Abilene 1340 1407
Amarillo   671   293
Brownsville   952 4013
Corpus Christi   743 3671
Dallas & Fort Worth 1610 2467
Houston   501 2917
Lubbock 1023   642
Midland 1525   940
Port Arthur   337 2949
San Angelo 1603 1491
San Antonio 1454 2659
Victoria   894 3269
Wichita Falls 1796 2266
Total days with the temperature at least 105 °F
City Actual Apparent
Abilene     28     33
Amarillo     11       0
Brownsville       2   572
Corpus Christi       3   729
Dallas & Fort Worth     52   352
Houston       7   460
Lubbock     33       3
Midland     45     13
Port Arthur       3   392
San Angelo     38     27
San Antonio       5     89
Victoria       3   308
Wichita Falls   177   381
Total days with the temperature at least 115 °F
City Actual Apparent
Abilene       0       1
Amarillo       0       0
Brownsville       0       5
Corpus Christi       0       5
Dallas & Fort Worth       0       4
Houston       0     11
Lubbock       0       0
Midland       0       0
Port Arthur       0     12
San Angelo       0       0
San Antonio       0       1
Victoria       0       2
Wichita Falls       2     12
Average days a year of apparent temperature
City 95+ °F 105+ °F
Abilene     47       1
Amarillo     10       0
Brownsville   134     19
Corpus Christi   122     24
Dallas & Fort Worth     82     12
Houston     97     15
Lubbock     21       0
Midland     31       0
Port Arthur     98     13
San Angelo     50       1
San Antonio     89       3
Victoria   109     10
Wichita Falls     76     13
References

Peter Browning and Brian Walawender. 2009. A Climatology of Apparent Temperature. 21st Conference on Climate Variability and Change.

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