Photo: Lane Lefort, U.S. Army Corps of Engineers · Public domainJean Lafitte’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 91°, a January night drops to 45°, and snow is almost unheard of.
A year in Jean Lafitte at a glance
Each month’s typical high and low, and what it brings.
What stands out about Jean Lafitte’s climate
Compared with towns across the U.S., with Jean Lafitte’s place in Louisiana beside it.
What a year in Jean Lafitte feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 306 frost-free days a year
In half of years the last 32° night comes by February 10 and the first by December 12. Frost and day counts come from NOAA’s station at Marrero 9 Ssw, LA, 2.4 miles from the town’s center, at about the same height.
The 2023 USDA map puts Jean Lafitte’s center in zone 9b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 27°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 64 inches of rain a year
July is the wettest month and October the driest. Rain falls on about 96 days a year. Snow is rare: about 0.0" in a normal year at Gretna, LA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Jean Lafitte
34% of the work is heating, so air conditioning is the bigger bill. Months averaging under 55° run from January.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Marrero 9 Ssw, LA.
Living with Jean Lafitte’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
306 frost-free days in zone 9b. The last frost comes by Feb 10 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Dec 12.
Months with highs of 62–84° and lows of 40° or more: January, February, March, April, October, November and December. 0.9 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Jean Lafitte from natural hazards, hurricanes are the largest share (42%); heat waves, cold waves, winter storms and ice storms together are 3%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Jean Lafitte and similar climates
TownRatings has no climate map of the towns around Jean Lafitte yet.
Climates most like Jean Lafitte’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Jean Lafitte, LA | 45° | 91° | 64" | 0.0" |
| Ferry Pass, FL | 44° | 90° | 64" | 0.0" |
| Port Arthur, TX | 44° | 91° | 61" | 0.0" |
| Orange Beach, AL | 43° | 90° | 62" | 0.0" |
| Magalia, CA | 38° | 92° | 61" | 0.1" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Jean Lafitte averaged 0.8° warmer than the 1900s. The biggest change is in February (+1.3°).
A smaller shift than in 88% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Jean Lafitte compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Jean Lafitte’s place among Louisiana’s.
Jean Lafitte weather by month
Highs, lows and precipitation from NOAA’s grid at Jean Lafitte’s center; snow, wet days and snow on the ground from Gretna, LA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 63° | 45° | 5.2" | 0.0" | 9 | 0 | 47° – 60° |
| February | 67° | 48° | 4.1" | 0.0" | 7 | 0 | 48° – 67° |
| March | 72° | 54° | 4.6" | 0.0" | 7 | 0 | 57° – 71° |
| April | 78° | 60° | 4.9" | 0.0" | 5 | 0 | 64° – 73° |
| May | 85° | 67° | 5.0" | 0.0" | 6 | 0 | 73° – 79° |
| June | 90° | 73° | 7.1" | 0.0" | 12 | 0 | 79° – 84° |
| July | 91° | 75° | 7.8" | 0.0" | 12 | 0 | 81° – 85° |
| August | 91° | 75° | 6.9" | 0.0" | 9 | 0 | 80° – 86° |
| September | 88° | 72° | 5.8" | 0.0" | 9 | 0 | 78° – 83° |
| October | 80° | 62° | 3.7" | 0.0" | 5 | 0 | 68° – 76° |
| November | 71° | 52° | 3.8" | 0.0" | 7 | 0 | 56° – 66° |
| December | 65° | 47° | 4.6" | 0.0" | 8 | 0 | 50° – 64° |
| Year | 78° | 61° | 63.6" | 0.0" | 96 | 0 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 48° to 67°. July is the most reliable, staying within 4°.
Where Jean Lafitte’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Jean Lafitte’s center.
- Snow: Gretna, LA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Marrero 9 Ssw, LA, 2.4 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Jean Lafitte’s climate
What is the weather like in Jean Lafitte?
A typical July afternoon reaches 91°, a January night drops to 45°, and snow is almost unheard of. Milder January nights than 94% of U.S. towns; hotter July afternoons than 82% of U.S. towns.
How cold does it get in Jean Lafitte in winter?
January nights average 45°. About 11 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 47°.
How much snow does Jean Lafitte get?
About 0.0 inches in a normal winter at Gretna, LA, so most winters see none.
How hot does it get in Jean Lafitte?
July, with a typical high of 91° and a low of 75°. About 79 days a year reach 90° (Marrero 9 Ssw, LA).
When is the first and last frost in Jean Lafitte?
In half of years the last spring frost (32°) comes by February 10 and the first fall frost by December 12, about 306 frost-free days, at Marrero 9 Ssw, LA.
What growing zone is Jean Lafitte in?
Zone 9b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 27°.
What is the best time of year to visit Jean Lafitte?
By one simple rule (highs of 62–84° and lows of 40° or more), January, February, March, April, October, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Jean Lafitte getting warmer?
Yes: 1991–2020 averaged 0.8° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 88% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Jean Lafitte.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.