Weather By Day

September Port Arthur Weather 
September Port Arthur Weather
Record High: 101°F
Normal High: 88°F
Normal Low: 69°F
Record Low: 45°F
Avg Monthly Rain: 6.1"
Rec 1 Day Rain: 12.09"

Port Arthur Weather In September

The hottest day in Port Arthur Texas in September for the past 57 years was 101 degrees Fahrenheit, most recently encountered on September 22, 2005, and the normal high is 88. The lowest documented temperature for Port Arthur for the past 57 years in September was 45 on September 2, 1967, while the average low temperature is 69.

National Weather Service historical Port Arthur September Weather data indicates that on September 30, 1985, the recorded high did not exceed 68 degrees Fahrenheit, the lowest high measured in Port Arthur in the past 57 years. The Weather Service additionally shows that on September 14, 1978, the low for the day did not drop below 82 degrees, the highest low temperature in Port Arthur in the last 57 years.

Weather Service historical data shows that the average daily high temperature in Port Arthur on September First is 91 degrees Fahrenheit and the average high on the last day of September is 85 degrees. The daily low temperature in Port Arthur on September First averages 73 degrees Fahrenheit and the low on the last day of September averages 63 degrees.

Port Arthur usually receives an average of 6.1 inches of precipitation during September. September Port Arthur Weather records indicate that on September 18, 1963 Port Arthur received 12.09 inches of precipitation, the highest amount of rain recorded in a single day in September.