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Weather & Climate in Port Arthur, TX
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Port Arthur enjoys a temperate climate with an average annual temperature of 70°F (21°C). Winters average 54°F in January while summers reach 84°F in July. The area gets 317 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 62.1 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 42. The city sits at an elevation of 7 feet.
Temperature
54°F Jan (12°C)
84°F Jul (29°C)
| Annual Average | 69.9°F |
| 29% above US avg | |
| January Average | 54°F (12°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 317 days/yr |
Geography
| Elevation | 7 ft (2 m) |
| Area | 144.0 sq mi (373.1 km²) |
| Population Density | 738/sq mi |
| Coordinates | 29.9000°N, 93.8944°W |
| Timezone | America/Chicago |
| County | Cameron Parish County |
| Nearest Airport | Jack Brooks Regional (BPT) 9 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 33.7 / 100 |
| Social Vulnerability | 45.4 / 100 |
| Community Resilience | 98.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Relatively High |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Very Low |
| Landslide | Very Low |
| Coastal Flood | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Hurricane History
19 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Francine | Category 2 | 104 mph | 226 km |
| 2024 | Beryl | Category 1 | 92 mph | 214 km |
| 2021 | Nicholas | Category 1 | 75 mph | 214 km |
| 2020 | Laura | Category 4 | 150 mph | 58 km |
| 2020 | Delta | Category 3 | 115 mph | 77 km |
| 2019 | Barry | Category 1 | 75 mph | 167 km |
| 2008 | Ike | Category 2 | 109 mph | 100 km |
| 2008 | Gustav | Category 2 | 98 mph | 197 km |
| 2007 | Humberto | Category 1 | 92 mph | 10 km |
| 2005 | Rita | Category 4 | 127 mph | 9 km |
| 2003 | Claudette | Category 1 | 92 mph | 227 km |
| 2002 | Lili | Category 4 | 121 mph | 154 km |
| 1992 | Andrew | Category 4 | 138 mph | 213 km |
| 1989 | Jerry | Category 1 | 86 mph | 132 km |
| 1989 | Chantal | Category 1 | 81 mph | 59 km |
| 1986 | Bonnie | Category 1 | 86 mph | 39 km |
| 1985 | Juan | Category 1 | 86 mph | 109 km |
| 1985 | Danny | Category 1 | 92 mph | 116 km |
| 1983 | Alicia | Category 3 | 115 mph | 147 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
490 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 14 fatalities, 368 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Nov 7, 1957 | EF4 | 27 km | 12.9 mi | 1 |
| Dec 28, 2024 | EF3 | 83 km | 67.9 mi | 0 |
| Jan 1, 1999 | EF3 | 55 km | 5.5 mi | 0 |
| Nov 21, 1992 | EF3 | 91 km | 6.0 mi | 0 |
| May 20, 1984 | EF3 | 54 km | 3.0 mi | 0 |
| May 20, 1983 | EF3 | 33 km | 5.0 mi | 0 |
| Jan 31, 1983 | EF3 | 34 km | 1.0 mi | 0 |
| May 13, 1982 | EF3 | 68 km | 8.5 mi | 1 |
| Oct 28, 1974 | EF3 | 55 km | 9.6 mi | 1 |
| Apr 17, 1973 | EF3 | 80 km | 0.5 mi | 0 |
| Apr 17, 1973 | EF3 | 37 km | 0.5 mi | 0 |
| Feb 12, 1971 | EF3 | 76 km | 3.6 mi | 0 |
| Oct 11, 1970 | EF3 | 3 km | 4.3 mi | 0 |
| May 27, 1969 | EF3 | 79 km | 1.5 mi | 3 |
| Mar 23, 1969 | EF3 | 41 km | 0.5 mi | 0 |
| Sep 12, 1961 | EF3 | 85 km | 0.5 mi | 0 |
| Nov 7, 1957 | EF3 | 10 km | 1.5 mi | 0 |
| Nov 7, 1957 | EF3 | 7 km | 3.6 mi | 2 |
| May 13, 2024 | EF2 | 66 km | 3.4 mi | 0 |
| Apr 10, 2024 | EF2 | 73 km | 1.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: LASBR-BIL-FY23-RX-PRESCRIBED FIRE (18,392 acres, 2023).
| Year | Name | Acres Burned | Distance |
| 2023 | LASBR-BIL-FY23-RX-PRESCRIBED FIRE | 18,392 | 42 km |
| 2007 | 08 UNIT 1 RX | 16,981 | 46 km |
| 2005 | LACASSINE POOL | 16,640 | 94 km |
| 2002 | BAYOU COMPLEX | 15,744 | 35 km |
| 1993 | PF UNIT 5 | 15,059 | 17 km |
| 2010 | MCR UNIT 2 RX | 14,471 | 38 km |
| 2000 | E WHITES 2 | 13,996 | 42 km |
| 2007 | UNIT 5 | 13,959 | 21 km |
| 2012 | WF HOLIDAY 1-2 | 13,251 | 41 km |
| 1990 | U 2 PF 90 1 | 12,490 | 32 km |
| 2005 | UNIT 4 05 01 | 11,749 | 31 km |
| 2003 | UNNAMED | 11,431 | 19 km |
| 2005 | RX UNIT 12 1117 2005 | 10,728 | 41 km |
| 2011 | SABINE WEST - 2011 (UNIT 3) | 10,195 | 31 km |
| 1997 | WILD COW BAY | 10,069 | 25 km |
| 2020 | TXMCR-FY20-RX-W | 10,033 | 30 km |
| 2014 | PINTAIL | 9,498 | 40 km |
| 2023 | H AND H COMPLEX | 9,476 | 20 km |
| 1992 | UNNAMED | 9,344 | 41 km |
| 2003 | UNIT 8 WILDFIRE | 9,076 | 26 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 54°F (12°C) | 5.0 in | Coldest |
| February | 55°F (13°C) | 3.5 in | |
| March | 62°F (17°C) | 3.3 in | Driest |
| April | 68°F (20°C) | 3.5 in | |
| May | 75°F (24°C) | 5.4 in | |
| June | 81°F (27°C) | 5.8 in | |
| July | 84°F (29°C) | 5.5 in | Warmest |
| August | 83°F (28°C) | 5.3 in | |
| September | 79°F (26°C) | 6.1 in | Wettest |
| October | 70°F (21°C) | 4.3 in | |
| November | 61°F (16°C) | 4.6 in | |
| December | 55°F (13°C) | 4.9 in |
Port Arthur has a seasonal temperature swing of 30°F / from 54°F in January to 84°F in July. Total annual precipitation is 56.9 inches, with September being the wettest month (6.1") and March the driest (3.3").