Weather By Day

May Weather In Port Arthur  
May Port Arthur Weather
Record High: 98°F
Normal High: 84°F
Normal Low: 66°F
Record Low: 46°F
Avg Monthly Rain: 5.83"
Rec 1 Day Rain: 9.89"

Port Arthur Weather In May

The record high May temperature in Port Arthur Texas for the last 57 years was 98 degrees Fahrenheit, registered on May 25, 2005, while the standard high temperature is 84. The record low May temperature in Port Arthur for the last 57 years was 46 registered on May 5, 1954, and the regular low is 66.

According to National Weather Service Port Arthur May Weather data, on May 4, 1954, the recorded high temperature did not exceed 67 degrees Fahrenheit, the lowest high measured in Port Arthur in the past 57 years. NWS weather data additionally shows that on May 30, 2004, the lowest recorded temperature on that day did not drop below 79 degrees, the highest low measured in Port Arthur in the last 57 years.

National Weather Service data shows that the high temperature in Port Arthur on May First averages 81 degrees Fahrenheit and the high on the final day of May averages 87 degrees. The low recorded temperature in Port Arthur on May First averages 64 degrees Fahrenheit and the low temperature on the final day of May averages 69 degrees.

Port Arthur normally receives an average of 5.83 inches of rain during May. The most precipitation measured in a single day, as indicated by May Port Arthur Weather data, was 9.89 inches on May 18, 1989.