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Weather & Climate in Lacassine, LA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Lacassine enjoys a temperate climate with an average annual temperature of 68°F (20°C). Winters average 51°F in January while summers reach 82°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 63.5 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 20 feet.
Temperature
51°F Jan (11°C)
82°F Jul (28°C)
| Annual Average | 67.8°F |
| 26% above US avg | |
| January Average | 51°F (11°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 313 days/yr |
Geography
| Elevation | 20 ft (6 m) |
| Area | 1.8 sq mi (4.5 km²) |
| Population Density | 100/sq mi |
| Coordinates | 30.2331°N, 92.9208°W |
| Timezone | America/Chicago |
| County | Jefferson Davis Parish County |
| Nearest Airport | Chennault International (CWF) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 74.3 / 100 |
| Social Vulnerability | 61.5 / 100 |
| Community Resilience | 39.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Moderate |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively High |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
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 | 186 km |
| 2021 | Ida | Category 4 | 150 mph | 207 km |
| 2020 | Laura | Category 4 | 150 mph | 55 km |
| 2020 | Zeta | Category 3 | 115 mph | 252 km |
| 2020 | Delta | Category 2 | 104 mph | 15 km |
| 2019 | Barry | Category 1 | 75 mph | 99 km |
| 2012 | Isaac | Category 1 | 81 mph | 251 km |
| 2008 | Ike | Category 2 | 109 mph | 200 km |
| 2008 | Gustav | Category 2 | 109 mph | 98 km |
| 2007 | Humberto | Category 1 | 92 mph | 66 km |
| 2005 | Rita | Category 3 | 127 mph | 92 km |
| 2005 | Cindy | Category 1 | 75 mph | 296 km |
| 2002 | Lili | Category 3 | 121 mph | 65 km |
| 1992 | Andrew | Category 4 | 144 mph | 118 km |
| 1989 | Jerry | Category 1 | 86 mph | 231 km |
| 1989 | Chantal | Category 1 | 81 mph | 156 km |
| 1986 | Bonnie | Category 1 | 86 mph | 138 km |
| 1985 | Juan | Category 1 | 86 mph | 98 km |
| 1985 | Danny | Category 1 | 92 mph | 34 km |
| 1983 | Alicia | Category 3 | 115 mph | 245 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tornado History
653 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 40 fatalities, 656 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Nov 7, 1957 | EF4 | 79 km | 12.9 mi | 1 |
| Dec 3, 1953 | EF4 | 94 km | 85.5 mi | 9 |
| May 17, 2020 | EF3 | 68 km | 3.9 mi | 1 |
| Dec 16, 2019 | EF3 | 76 km | 62.6 mi | 1 |
| Nov 21, 1992 | EF3 | 11 km | 6.0 mi | 0 |
| May 20, 1984 | EF3 | 64 km | 3.0 mi | 0 |
| May 20, 1983 | EF3 | 85 km | 5.0 mi | 0 |
| Feb 9, 1983 | EF3 | 74 km | 21.0 mi | 0 |
| Feb 9, 1983 | EF3 | 61 km | 3.0 mi | 0 |
| Jan 31, 1983 | EF3 | 67 km | 6.0 mi | 1 |
| Apr 21, 1977 | EF3 | 94 km | 3.8 mi | 1 |
| Oct 29, 1974 | EF3 | 28 km | 31.3 mi | 2 |
| Oct 29, 1974 | EF3 | 82 km | 7.3 mi | 0 |
| Apr 17, 1973 | EF3 | 72 km | 0.5 mi | 0 |
| Apr 17, 1973 | EF3 | 24 km | 0.5 mi | 0 |
| Feb 12, 1971 | EF3 | 27 km | 3.6 mi | 0 |
| Oct 11, 1970 | EF3 | 99 km | 4.3 mi | 0 |
| Dec 25, 1969 | EF3 | 68 km | 1.5 mi | 1 |
| May 1, 1967 | EF3 | 49 km | 5.2 mi | 0 |
| Sep 10, 1961 | EF3 | 65 km | 5.7 mi | 1 |
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 | 76 km |
| 2023 | LASBR-BIL-FY23-RX-PRESCRIBED FIRE | 18,392 | 62 km |
| 2005 | LACASSINE POOL | 16,640 | 29 km |
| 2002 | BAYOU COMPLEX | 15,744 | 78 km |
| 1993 | PF UNIT 5 | 15,059 | 85 km |
| 2000 | UNNAMED | 15,017 | 99 km |
| 2007 | UNIT 5 | 13,959 | 82 km |
| 2000 | UNNAMED | 12,496 | 63 km |
| 1990 | U 2 PF 90 1 | 12,490 | 75 km |
| 2005 | UNIT 4 05 01 | 11,749 | 76 km |
| 2003 | UNNAMED | 11,431 | 89 km |
| 2011 | SABINE WEST - 2011 (UNIT 3) | 10,195 | 71 km |
| 2014 | PINTAIL | 9,498 | 64 km |
| 1987 | U 1 PF 87 09 | 8,953 | 64 km |
| 1998 | UNIT 1 RX | 8,913 | 66 km |
| 2006 | UNNAMED | 8,563 | 60 km |
| 1996 | UNIT 7 | 8,298 | 87 km |
| 2011 | SABINE WEST 2011 UNIT 5 | 8,184 | 89 km |
| 2022 | NORTHLINE | 8,096 | 67 km |
| 2000 | RX 3 | 7,409 | 70 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 51°F (11°C) | 5.4 in | Coldest |
| February | 54°F (12°C) | 4.0 in | |
| March | 61°F (16°C) | 4.2 in | |
| April | 67°F (20°C) | 3.7 in | Driest |
| May | 75°F (24°C) | 5.7 in | |
| June | 80°F (27°C) | 5.3 in | |
| July | 82°F (28°C) | 5.6 in | Warmest |
| August | 82°F (28°C) | 5.0 in | |
| September | 78°F (26°C) | 5.8 in | Wettest |
| October | 69°F (20°C) | 4.3 in | |
| November | 60°F (15°C) | 4.7 in | |
| December | 53°F (12°C) | 5.5 in |
Lacassine has a seasonal temperature swing of 31°F / from 51°F in January to 82°F in July. Total annual precipitation is 59.2 inches, with September being the wettest month (5.8") and April the driest (3.7").