Weather & Climate in Prairieville, LA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Prairieville enjoys a temperate climate with an average annual temperature of 69°F (20°C). Winters average 52°F in January while summers reach 83°F in July. Annual precipitation totals 67.2 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 33. 92% of days have good air quality. The city sits at an elevation of 20 feet.
Temperature
52°F Jan (11°C)
83°F Jul (28°C)
| Annual Average | 68.7°F |
| 27% above US avg | |
| January Average | 52°F (11°C) |
| July Average | 83°F (28°C) |
Geography
| Elevation | 20 ft (6 m) |
| Area | 22.1 sq mi (57.2 km²) |
| Population Density | 1,591/sq mi |
| Coordinates | 30.3135°N, 90.9581°W |
| Timezone | America/Chicago |
| County | Ascension Parish County |
| Nearest Airport | Louis Armstrong New Orleans International (MSY) 47 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 33.0 |
| Rating | Good |
| Good Days % | 91.9% |
| Unhealthy Days | 3 |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 92.1 / 100 |
| Social Vulnerability | 34.8 / 100 |
| Community Resilience | 84.6 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Very 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 | 57 km | 0 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
25 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 | 80 km |
| 2021 | Ida | Category 4 | 150 mph | 28 km |
| 2020 | Laura | Category 4 | 150 mph | 233 km |
| 2020 | Zeta | Category 3 | 115 mph | 102 km |
| 2020 | Delta | Category 2 | 104 mph | 188 km |
| 2020 | Sally | Category 2 | 109 mph | 290 km |
| 2019 | Barry | Category 1 | 75 mph | 144 km |
| 2017 | Nate | Category 1 | 86 mph | 175 km |
| 2012 | Isaac | Category 1 | 81 mph | 111 km |
| 2009 | Ida | Category 1 | 86 mph | 298 km |
| 2008 | Gustav | Category 2 | 109 mph | 71 km |
| 2007 | Humberto | Category 1 | 75 mph | 254 km |
| 2005 | Katrina | Category 4 | 144 mph | 130 km |
| 2005 | Rita | Category 3 | 127 mph | 269 km |
| 2005 | Cindy | Category 1 | 75 mph | 149 km |
| 2004 | Ivan | Category 4 | 132 mph | 294 km |
| 2002 | Lili | Category 3 | 121 mph | 134 km |
| 1998 | Georges | Category 2 | 109 mph | 198 km |
| 1997 | Danny | Category 1 | 81 mph | 161 km |
| 1992 | Andrew | Category 4 | 144 mph | 74 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tornado History
589 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 45 fatalities, 879 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Dec 6, 1983 | EF4 | 50 km | 7.0 mi | 0 |
| Oct 3, 1964 | EF4 | 98 km | 1.5 mi | 22 |
| Mar 22, 2022 | EF3 | 99 km | 11.5 mi | 1 |
| Dec 16, 2019 | EF3 | 98 km | 29.3 mi | 0 |
| Feb 7, 2017 | EF3 | 98 km | 10.1 mi | 0 |
| Feb 7, 2017 | EF3 | 35 km | 6.4 mi | 0 |
| Feb 23, 2016 | EF3 | 38 km | 7.8 mi | 0 |
| May 26, 2011 | EF3 | 93 km | 6.1 mi | 0 |
| Aug 25, 1992 | EF3 | 56 km | 9.0 mi | 2 |
| Oct 14, 1984 | EF3 | 42 km | 16.0 mi | 0 |
| Dec 13, 1977 | EF3 | 84 km | 20.4 mi | 0 |
| Apr 21, 1977 | EF3 | 95 km | 3.8 mi | 1 |
| Apr 26, 1973 | EF3 | 24 km | 0.3 mi | 0 |
| Feb 29, 1972 | EF3 | 47 km | 1.0 mi | 0 |
| Sep 16, 1971 | EF3 | 17 km | 7.3 mi | 0 |
| Mar 17, 1970 | EF3 | 76 km | 1.0 mi | 0 |
| Dec 25, 1969 | EF3 | 43 km | 13.5 mi | 0 |
| Apr 12, 1969 | EF3 | 14 km | 10.7 mi | 0 |
| Jan 28, 1966 | EF3 | 75 km | 0.1 mi | 0 |
| Mar 21, 1957 | EF3 | 97 km | 2.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
12 wildfires (100+ acres) recorded within 100 km. Largest: UNIT 4 CD (1,729 acres, 1998).
| Year | Name | Acres Burned | Distance |
| 1998 | UNIT 4 CD | 1,729 | 94 km |
| 1998 | UNIT 7 | 1,623 | 97 km |
| 2006 | UNNAMED | 1,206 | 72 km |
| 2001 | UNNAMED | 950 | 92 km |
| 2010 | UNNAMED | 904 | 67 km |
| 2009 | GOOSEPOINT C | 864 | 95 km |
| 2006 | BOY SCOUT EAST | 826 | 100 km |
| 1996 | UNNAMED | 809 | 94 km |
| 2000 | UNNAMED | 750 | 95 km |
| 1996 | UNNAMED | 734 | 100 km |
| 2005 | UNT 4A SAMMY SLOUGH | 717 | 95 km |
| 2009 | BAPTISTE CEMETERY | 684 | 93 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 52°F (11°C) | 5.6 in | Coldest |
| February | 56°F (13°C) | 5.2 in | |
| March | 62°F (17°C) | 4.5 in | |
| April | 68°F (20°C) | 5.7 in | |
| May | 76°F (24°C) | 7.2 in | |
| June | 81°F (27°C) | 6.7 in | |
| July | 83°F (28°C) | 5.3 in | Warmest |
| August | 83°F (28°C) | 7.7 in | Wettest |
| September | 79°F (26°C) | 4.6 in | |
| October | 70°F (21°C) | 4.8 in | |
| November | 60°F (16°C) | 4.1 in | Driest |
| December | 55°F (13°C) | 5.9 in |
Prairieville has a seasonal temperature swing of 30°F / from 52°F in January to 83°F in July. Total annual precipitation is 67.2 inches, with August being the wettest month (7.7") and November the driest (4.1").