Port Arthur Weather Records

Port Arthur, Texas weather averages and records from 1947–2024 based on data made available by the NOAA.

All-Time Recorded High

The highest temperature ever recorded in Port Arthur, Texas was 111 °F which occurred on August 27, 2023.

Highest Temperatures: All-Time By Year

All-Time Recorded Low

The lowest temperature ever recorded in Port Arthur, Texas was 12 °F which occurred on December 23, 1989.

Lowest Temperatures: All-Time By Year

Port Arthur Weather by Month

Averages based on the years 1991–2020

Month	Average (°F)		Record (°F)		Average (inches)
Month	High ☀️	Low 🌙	High ☀️	Low 🌙	Precipitation 💧
January	63.1	43.8	82	14	5.3
February	66.8	47.8	88	13	3.1
March	72.8	53.5	89	23	3.6
April	78.7	59.7	94	32	3.9
May	85.3	67.4	98	42	4.7
June	90.4	73.2	104	56	6.7
July	92.1	74.7	103	61	6.7
August	92.6	74.5	111	60	6.9
September	89.0	70.7	105	45	6.7
October	81.6	61.1	95	30	5.5
November	71.9	51.4	89	22	3.9
December	64.9	45.8	85	12	5.0
Entire year	79.2	60.3	111	12	62.0

More Port Arthur Weather Records 1947–2024
Highest daily low	84 °F	June 23, 2019
Lowest daily high	26 °F	February 1, 1951
Greatest daily range (Difference of high and low)	48 °F	January 9, 1977
Greatest difference in daily high over two conscutive days	39 °F	Jan 11–12, 1963
Most daily precipitation	26.0 inches	August 29, 2017
Most monthly precipitation	54.7 inches	August 2017
Most yearly precipitation	104.3 inches	2017
Most yearly days with precipitation	138	2016
Earliest freeze	October 31	1993
Earliest day ≥ 90 °F	April 9	2020
Earliest day ≥ 100 °F	June 2	2011
Latest freeze	March 31	1987
Latest day ≥ 90 °F	October 28	1963
Latest day ≥ 100 °F	September 22	2005
Most days in a year < 32 °F	26	1963
Most days in a year ≥ 80 °F	227	2017
Most days in a year ≥ 90 °F	130	2023
Most days in a year ≥ 100 °F	36	2023
Most days in a year ≥ 110 °F	1	2023

Port Arthur Weather Streaks Most consecutive days...
With precipitation	16 days	Jul 8–23, 2012
Without precipitation	44 days	Sep 22 – Nov 4, 1952
High temperature at or below freezing	4 days	Jan 30 – Feb 2, 1951
High temperature ≥ 80 °F	158 days	Apr 24 – Sep 28, 2003
High temperature ≥ 90 °F	99 days	Jun 7 – Sep 13, 2023
High temperature ≥ 100 °F	9 days	Aug 6–14, 1962

Plant Hardiness Zone

Port Arthur is in plant hardiness zone 9B

based on average yearly minimum temperature from 1991–2020

Facts About Port Arthur Weather

Port Arthur Weather by Year

More Port Arthur Weather

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Weather Station Details

Years	Station	Coordinates
1947–2024	Jack Brooks Regional Airport	location