Temperature for March
In Brownsville, TX during March the average high temperature is 79.0°F. The hottest day on record was March 27, 1984 when the temperature hit 106.0°F.

In Brownsville, TX during March the average high temperature is 79.0°F. The hottest day on record was March 27, 1984 when the temperature hit 106.0°F.
In March the average monthly rainfall in Brownsville, TX is 0.80 inches with rain usually falling on between 7 and 8 days. 1948 was the driest March with only 0.00 inches of rain falling, and 1973 was the wettest March with 10.95 inches of rain. The wettest single day in March was 8 March 1973 when 10.63 inches of rain fell.
In March there have been some years when thunderstorms have occurred, although there are other years when there hasn't been a thunderstorm in March.