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Weather & Climate in Hammond, LA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hammond enjoys a temperate climate with an average annual temperature of 67°F (19°C). Winters average 50°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 64.2 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 40 feet.
Temperature
50°F Jan (10°C)
82°F Jul (28°C)
| Annual Average | 66.8°F |
| 24% above US avg | |
| January Average | 50°F (10°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 313 days/yr |
Geography
| Elevation | 40 ft (12 m) |
| Area | 5.4 sq mi (14.0 km²) |
| Population Density | 1,459/sq mi |
| Coordinates | 30.5057°N, 90.4565°W |
| Timezone | America/Chicago |
| County | Tangipahoa Parish County |
| Nearest Airport | Louis Armstrong New Orleans International (MSY) 37 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 93.3 / 100 |
| Social Vulnerability | 73.2 / 100 |
| Community Resilience | 65.8 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively High |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Low |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| 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: M3.0.
| Aug 2, 2010 | 16 km ESE of Clinton, Louisiana | M3.0 | 51 km | 0 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 4.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Francine | Category 2 | 104 mph | 109 km |
| 2021 | Ida | Category 4 | 150 mph | 35 km |
| 2020 | Laura | Category 4 | 150 mph | 282 km |
| 2020 | Zeta | Category 3 | 115 mph | 63 km |
| 2020 | Delta | Category 2 | 98 mph | 239 km |
| 2020 | Sally | Category 2 | 109 mph | 253 km |
| 2019 | Barry | Category 1 | 75 mph | 193 km |
| 2017 | Nate | Category 1 | 86 mph | 138 km |
| 2012 | Isaac | Category 1 | 81 mph | 123 km |
| 2009 | Ida | Category 1 | 86 mph | 280 km |
| 2008 | Gustav | Category 2 | 109 mph | 120 km |
| 2005 | Katrina | Category 4 | 144 mph | 85 km |
| 2005 | Cindy | Category 1 | 75 mph | 149 km |
| 2004 | Ivan | Category 4 | 132 mph | 248 km |
| 2002 | Lili | Category 3 | 121 mph | 186 km |
| 1998 | Georges | Category 2 | 109 mph | 149 km |
| 1998 | Earl | Category 2 | 98 mph | 293 km |
| 1997 | Danny | Category 1 | 81 mph | 151 km |
| 1995 | Erin | Category 1 | 75 mph | 283 km |
| 1992 | Andrew | Category 4 | 144 mph | 119 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tornado History
698 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 35 fatalities, 943 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 19, 2020 | EF4 | 79 km | 53.8 mi | 1 |
| Apr 12, 2020 | EF4 | 90 km | 21.2 mi | 4 |
| Dec 6, 1983 | EF4 | 49 km | 7.0 mi | 0 |
| Jan 10, 1975 | EF4 | 75 km | 56.5 mi | 9 |
| Mar 22, 2022 | EF3 | 79 km | 11.5 mi | 1 |
| Dec 16, 2019 | EF3 | 87 km | 29.3 mi | 0 |
| Feb 7, 2017 | EF3 | 70 km | 10.1 mi | 0 |
| Feb 7, 2017 | EF3 | 45 km | 6.4 mi | 0 |
| Feb 23, 2016 | EF3 | 83 km | 7.8 mi | 0 |
| Dec 23, 2014 | EF3 | 100 km | 12.5 mi | 3 |
| Dec 25, 2012 | EF3 | 76 km | 60.3 mi | 0 |
| May 26, 2011 | EF3 | 41 km | 6.1 mi | 0 |
| Aug 25, 1992 | EF3 | 48 km | 9.0 mi | 2 |
| Oct 14, 1984 | EF3 | 68 km | 16.0 mi | 0 |
| Mar 20, 1983 | EF3 | 66 km | 2.0 mi | 0 |
| Dec 13, 1977 | EF3 | 62 km | 20.4 mi | 0 |
| Apr 26, 1973 | EF3 | 60 km | 0.3 mi | 0 |
| Feb 29, 1972 | EF3 | 89 km | 1.0 mi | 0 |
| Dec 10, 1971 | EF3 | 97 km | 19.1 mi | 0 |
| Sep 16, 1971 | EF3 | 55 km | 7.3 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (4,022 acres, 2014).
| Year | Name | Acres Burned | Distance |
| 2014 | UNNAMED | 4,022 | 96 km |
| 2006 | KILN (BAYOU BACON) | 3,576 | 92 km |
| 2024 | HOMOCHITTO BB28 SUB3 RX | 2,279 | 96 km |
| 2000 | UNIT 1 B | 2,030 | 69 km |
| 2021 | HOMOCHITTO BB26 | 2,008 | 98 km |
| 2006 | UNNAMED | 1,984 | 90 km |
| 1998 | UNIT 4 CD | 1,729 | 51 km |
| 2015 | BAYOU LACROIX | 1,714 | 96 km |
| 2009 | SLIDELL AIRPORT | 1,663 | 60 km |
| 1998 | UNIT 7 | 1,623 | 55 km |
| 2008 | UNNAMED | 1,594 | 55 km |
| 2010 | BURN BLOCK 14 | 1,502 | 87 km |
| 2011 | BAD ROMANCE | 1,305 | 72 km |
| 2011 | TONEY ISLAND | 1,215 | 93 km |
| 2006 | UNNAMED | 1,206 | 20 km |
| 2006 | WHITE SANDS FIRE | 1,193 | 86 km |
| 2016 | UNNAMED | 1,174 | 99 km |
| 2006 | UNNAMED | 1,111 | 97 km |
| 2004 | UNITS 1A-1B | 1,108 | 69 km |
| 2006 | UNNAMED | 1,102 | 52 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 50°F (10°C) | 5.9 in | Coldest |
| February | 53°F (12°C) | 5.7 in | |
| March | 60°F (16°C) | 6.0 in | |
| April | 66°F (19°C) | 5.6 in | |
| May | 74°F (23°C) | 5.4 in | |
| June | 79°F (26°C) | 5.0 in | |
| July | 82°F (28°C) | 6.4 in | Warmest, Wettest |
| August | 81°F (27°C) | 5.8 in | |
| September | 77°F (25°C) | 4.9 in | |
| October | 67°F (20°C) | 3.5 in | Driest |
| November | 59°F (15°C) | 4.8 in | |
| December | 53°F (11°C) | 5.7 in |
Hammond has a seasonal temperature swing of 32°F / from 50°F in January to 82°F in July. Total annual precipitation is 64.8 inches, with July being the wettest month (6.4") and October the driest (3.5").