Temperature for August
In Harlingen, TX during August the average high temperature is 94.8°F. The hottest day on record was August 28, 2011 when the temperature hit 106.0°F.
Precipitation for August
In August the average monthly rainfall in Harlingen, TX is 0.56 inches with rain usually falling on between 4 and 5 days. 1943 was the driest August with only 0.00 inches of rain falling, and 2008 was the wettest August with 9.52 inches of rain. The wettest single day in August was 16 August 2008 when 5.57 inches of rain fell.
There are thunderstorms on between 2 and 3 days in August.