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Weather & Climate in Deweyville, TX
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Deweyville enjoys a temperate climate with an average annual temperature of 67°F (19°C). Winters average 51°F in January while summers reach 81°F in July. The area gets 313 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 64.4 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 14 feet.
Temperature
51°F Jan (10°C)
81°F Jul (27°C)
| Annual Average | 66.8°F |
| 24% above US avg | |
| January Average | 51°F (10°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 313 days/yr |
Geography
| Elevation | 14 ft (4 m) |
| Area | 11.3 sq mi (29.3 km²) |
| Population Density | 48/sq mi |
| Coordinates | 30.2998°N, 93.7730°W |
| Timezone | America/Chicago |
| County | Orange County County |
| Nearest Airport | Jack Brooks Regional (BPT) 25 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 85.9 / 100 |
| Social Vulnerability | 50.5 / 100 |
| Community Resilience | 66.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
3 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.3.
| Jan 20, 2019 | 7 km SSW of San Augustine, Texas | M3.3 | 135 km | 5 km |
| Apr 2, 2024 | 5 km WSW of Chireno, Texas | M3.0 | 144 km | 8 km |
| May 4, 2024 | 5 km WSW of Chireno, Texas | M2.6 | 143 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
20 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 | 249 km |
| 2024 | Beryl | Category 1 | 92 mph | 242 km |
| 2021 | Ida | Category 2 | 75 mph | 287 km |
| 2021 | Nicholas | Category 1 | 75 mph | 250 km |
| 2020 | Laura | Category 4 | 150 mph | 42 km |
| 2020 | Delta | Category 2 | 104 mph | 85 km |
| 2019 | Barry | Category 1 | 75 mph | 170 km |
| 2008 | Ike | Category 2 | 109 mph | 127 km |
| 2008 | Gustav | Category 2 | 104 mph | 180 km |
| 2007 | Humberto | Category 1 | 92 mph | 17 km |
| 2005 | Rita | Category 3 | 127 mph | 39 km |
| 2003 | Claudette | Category 1 | 92 mph | 272 km |
| 2002 | Lili | Category 3 | 121 mph | 146 km |
| 1992 | Andrew | Category 4 | 138 mph | 200 km |
| 1989 | Jerry | Category 1 | 86 mph | 170 km |
| 1989 | Chantal | Category 1 | 81 mph | 99 km |
| 1986 | Bonnie | Category 1 | 86 mph | 67 km |
| 1985 | Juan | Category 1 | 86 mph | 134 km |
| 1985 | Danny | Category 1 | 92 mph | 108 km |
| 1983 | Alicia | Category 3 | 115 mph | 178 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
569 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 15 fatalities, 404 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Nov 7, 1957 | EF4 | 23 km | 12.9 mi | 1 |
| Dec 16, 2019 | EF3 | 78 km | 62.6 mi | 1 |
| Mar 2, 1999 | EF3 | 68 km | 12.0 mi | 1 |
| Jan 1, 1999 | EF3 | 73 km | 5.5 mi | 0 |
| Nov 21, 1992 | EF3 | 72 km | 6.0 mi | 0 |
| May 20, 1984 | EF3 | 69 km | 3.0 mi | 0 |
| May 20, 1983 | EF3 | 63 km | 5.0 mi | 0 |
| Jan 31, 1983 | EF3 | 46 km | 1.0 mi | 0 |
| May 13, 1982 | EF3 | 35 km | 8.5 mi | 1 |
| Oct 28, 1974 | EF3 | 94 km | 9.6 mi | 1 |
| Apr 17, 1973 | EF3 | 18 km | 0.5 mi | 0 |
| Apr 17, 1973 | EF3 | 58 km | 0.5 mi | 0 |
| Feb 12, 1971 | EF3 | 56 km | 3.6 mi | 0 |
| Oct 11, 1970 | EF3 | 44 km | 4.3 mi | 0 |
| Mar 23, 1969 | EF3 | 75 km | 0.5 mi | 0 |
| May 1, 1967 | EF3 | 91 km | 5.2 mi | 0 |
| Sep 12, 1961 | EF3 | 93 km | 0.5 mi | 0 |
| Nov 7, 1957 | EF3 | 42 km | 3.6 mi | 2 |
| Nov 7, 1957 | EF3 | 50 km | 1.5 mi | 0 |
| Apr 4, 1952 | EF3 | 88 km | 36.7 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: TIGER ISLAND (30,959 acres, 2023).
| Year | Name | Acres Burned | Distance |
| 2023 | TIGER ISLAND | 30,959 | 57 km |
| 2023 | LASBR-BIL-FY23-RX-PRESCRIBED FIRE | 18,392 | 52 km |
| 2007 | 08 UNIT 1 RX | 16,981 | 88 km |
| 2005 | LACASSINE POOL | 16,640 | 90 km |
| 2002 | BAYOU COMPLEX | 15,744 | 60 km |
| 1993 | PF UNIT 5 | 15,059 | 44 km |
| 2000 | UNNAMED | 15,017 | 63 km |
| 2010 | MCR UNIT 2 RX | 14,471 | 81 km |
| 2000 | E WHITES 2 | 13,996 | 84 km |
| 2007 | UNIT 5 | 13,959 | 45 km |
| 2012 | WF HOLIDAY 1-2 | 13,251 | 84 km |
| 1990 | U 2 PF 90 1 | 12,490 | 53 km |
| 2005 | UNIT 4 05 01 | 11,749 | 53 km |
| 2003 | UNNAMED | 11,431 | 53 km |
| 2005 | RX UNIT 12 1117 2005 | 10,728 | 84 km |
| 2011 | SABINE WEST - 2011 (UNIT 3) | 10,195 | 45 km |
| 1997 | WILD COW BAY | 10,069 | 69 km |
| 2020 | TXMCR-FY20-RX-W | 10,033 | 75 km |
| 2014 | PINTAIL | 9,498 | 50 km |
| 2023 | H AND H COMPLEX | 9,476 | 61 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 51°F (10°C) | 5.1 in | Coldest |
| February | 54°F (12°C) | 3.9 in | |
| March | 60°F (16°C) | 3.7 in | |
| April | 67°F (19°C) | 3.5 in | Driest |
| May | 74°F (23°C) | 5.5 in | |
| June | 80°F (26°C) | 5.9 in | Wettest |
| July | 81°F (27°C) | 5.4 in | |
| August | 82°F (28°C) | 4.5 in | Warmest |
| September | 77°F (25°C) | 5.8 in | |
| October | 68°F (20°C) | 4.3 in | |
| November | 59°F (15°C) | 4.7 in | |
| December | 52°F (11°C) | 5.4 in |
Deweyville has a seasonal temperature swing of 31°F / from 51°F in January to 82°F in August. Total annual precipitation is 57.7 inches, with June being the wettest month (5.9") and April the driest (3.5").