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Weather & Climate in Delacroix, LA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Delacroix enjoys a temperate climate with an average annual temperature of 69°F (20°C). Winters average 53°F in January while summers reach 82°F in July. The area gets 319 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Air quality is rated Good with a median AQI of 42. The city sits at an elevation of 10 feet.
Temperature
53°F Jan (12°C)
82°F Jul (28°C)
| Annual Average | 68.6°F |
| 27% above US avg | |
| January Average | 53°F (12°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 319 days/yr |
Geography
| Elevation | 10 ft (3 m) |
| Area | 0.3 sq mi (0.6 km²) |
| Population Density | 64/sq mi |
| Coordinates | 29.7624°N, 89.7895°W |
| Timezone | America/Chicago |
| County | St. Bernard Parish County |
| Nearest Airport | Louis Armstrong New Orleans International (MSY) 32 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 75.6 / 100 |
| Social Vulnerability | 42.2 / 100 |
| Community Resilience | 96.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M2.9.
| Oct 18, 1997 | 69 km SSW of Dauphin Island, Alabama | M2.9 | 139 km | 1 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
24 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Francine | Category 2 | 104 mph | 109 km |
| 2021 | Ida | Category 4 | 150 mph | 80 km |
| 2020 | Zeta | Category 3 | 115 mph | 50 km |
| 2020 | Sally | Category 2 | 109 mph | 166 km |
| 2019 | Barry | Category 1 | 75 mph | 211 km |
| 2017 | Nate | Category 1 | 92 mph | 59 km |
| 2012 | Isaac | Category 1 | 81 mph | 74 km |
| 2009 | Ida | Category 1 | 86 mph | 176 km |
| 2008 | Gustav | Category 2 | 109 mph | 108 km |
| 2005 | Katrina | Category 5 | 161 mph | 34 km |
| 2005 | Dennis | Category 3 | 127 mph | 265 km |
| 2005 | Cindy | Category 1 | 75 mph | 69 km |
| 2004 | Ivan | Category 4 | 132 mph | 178 km |
| 2002 | Lili | Category 4 | 121 mph | 232 km |
| 1998 | Georges | Category 2 | 109 mph | 105 km |
| 1998 | Earl | Category 2 | 98 mph | 190 km |
| 1997 | Danny | Category 1 | 81 mph | 48 km |
| 1995 | Opal | Category 4 | 150 mph | 220 km |
| 1995 | Erin | Category 2 | 98 mph | 239 km |
| 1992 | Andrew | Category 4 | 144 mph | 152 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
409 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 36 fatalities, 655 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Dec 6, 1983 | EF4 | 78 km | 7.0 mi | 0 |
| Oct 3, 1964 | EF4 | 59 km | 1.5 mi | 22 |
| Mar 22, 2022 | EF3 | 29 km | 11.5 mi | 1 |
| Feb 7, 2017 | EF3 | 34 km | 10.1 mi | 0 |
| Dec 25, 2012 | EF3 | 99 km | 60.3 mi | 0 |
| May 26, 2011 | EF3 | 98 km | 6.1 mi | 0 |
| Aug 25, 1992 | EF3 | 72 km | 9.0 mi | 2 |
| May 19, 1980 | EF3 | 90 km | 10.6 mi | 0 |
| May 19, 1980 | EF3 | 61 km | 13.1 mi | 0 |
| May 16, 1980 | EF3 | 91 km | 11.5 mi | 0 |
| Apr 13, 1980 | EF3 | 95 km | 15.9 mi | 0 |
| Nov 3, 1968 | EF3 | 96 km | 2.0 mi | 0 |
| Oct 30, 1967 | EF3 | 97 km | 2.0 mi | 4 |
| Jan 28, 1966 | EF3 | 54 km | 0.1 mi | 0 |
| Mar 21, 1957 | EF3 | 84 km | 2.0 mi | 0 |
| Apr 10, 2024 | EF2 | 54 km | 11.0 mi | 0 |
| Dec 14, 2022 | EF2 | 35 km | 10.6 mi | 0 |
| Dec 14, 2022 | EF2 | 73 km | 4.7 mi | 1 |
| Feb 7, 2017 | EF2 | 98 km | 23.1 mi | 0 |
| Feb 23, 2016 | EF2 | 77 km | 4.7 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: KILN (BAYOU BACON) (3,576 acres, 2006).
| Year | Name | Acres Burned | Distance |
| 2006 | KILN (BAYOU BACON) | 3,576 | 79 km |
| 2006 | SANDY FOX FIRE | 3,167 | 99 km |
| 2000 | UNIT 1 B | 2,030 | 40 km |
| 1998 | UNIT 4 CD | 1,729 | 64 km |
| 2015 | BAYOU LACROIX | 1,714 | 70 km |
| 2009 | SLIDELL AIRPORT | 1,663 | 68 km |
| 1998 | UNIT 7 | 1,623 | 58 km |
| 2008 | UNNAMED | 1,594 | 80 km |
| 2006 | UNNAMED | 1,482 | 87 km |
| 2020 | TILLMAN ROAD | 1,395 | 94 km |
| 2011 | BAD ROMANCE | 1,305 | 35 km |
| 2011 | TONEY ISLAND | 1,215 | 71 km |
| 2006 | UNNAMED | 1,206 | 99 km |
| 2006 | UNNAMED | 1,111 | 93 km |
| 2004 | UNITS 1A-1B | 1,108 | 40 km |
| 2006 | UNNAMED | 1,102 | 91 km |
| 2006 | UNNAMED | 1,049 | 89 km |
| 2001 | UNNAMED | 950 | 70 km |
| 2007 | BRANCH | 906 | 94 km |
| 2010 | UNNAMED | 904 | 61 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 53°F (12°C) | 5.1 in | Coldest |
| February | 56°F (13°C) | 5.5 in | |
| March | 62°F (16°C) | 5.1 in | |
| April | 68°F (20°C) | 4.3 in | |
| May | 75°F (24°C) | 5.0 in | |
| June | 80°F (27°C) | 4.9 in | |
| July | 82°F (28°C) | 6.8 in | Wettest |
| August | 82°F (28°C) | 6.6 in | Warmest |
| September | 79°F (26°C) | 5.9 in | |
| October | 71°F (22°C) | 3.2 in | Driest |
| November | 62°F (17°C) | 4.6 in | |
| December | 56°F (13°C) | 5.0 in |
Delacroix has a seasonal temperature swing of 29°F / from 53°F in January to 82°F in August. Total annual precipitation is 61.9 inches, with July being the wettest month (6.8") and October the driest (3.2").