Photo: Louisiana Sea Grant College Program Louisiana State University · CC BY 2.0Chauvin sits near the top of U.S. towns for precipitation, with 63 inches a year
January nights here settle around 46°. Winters are mild: January nights here are milder than in 94% of U.S. towns. Since 1901–2000, the year has warmed by 1.0°, most of all in February. Garden planting can start around February 8; autumn frost returns near December 19.
A year in Chauvin at a glance
Each month’s typical high and low, and what it brings.
What stands out about Chauvin’s climate
Compared with towns across the U.S., with Chauvin’s place in Louisiana beside it.
What a year in Chauvin feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 311 frost-free days a year
In half of years the last 32° night comes by February 8 and the first by December 19. Frost and day counts come from NOAA’s station at Galliano, LA, 17 miles from the town’s center, at about the same height.
The 2023 USDA map puts Chauvin’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 63 inches of rain a year
July is the wettest month and February the driest. Rain falls on about 115 days a year. Snow is rare: about 0.0" in a normal year at Galliano, LA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Chauvin
31% 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 Galliano, LA.
Living with Chauvin’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
311 frost-free days in zone 9b. The last frost comes by Feb 8 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 19.
Months with highs of 62–84° and lows of 40° or more: January, February, March, April, October, November and December. 0.6 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Chauvin from natural hazards, coastal flooding is the largest share (52%); heat waves, cold waves, winter storms and ice storms together are 2%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Chauvin and similar climates
TownRatings has no climate map of the towns around Chauvin yet.
Climates most like Chauvin’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 |
|---|---|---|---|---|
| Chauvin, LA | 46° | 90° | 63" | 0.0" |
| Pensacola, FL | 44° | 90° | 63" | 0.0" |
| Gulf Shores, AL | 44° | 90° | 62" | 0.0" |
| Port Arthur, TX | 44° | 91° | 61" | 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 Chauvin averaged 1.0° warmer than the 1900s. The biggest change is in February (+1.6°).
A smaller shift than in 75% 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 Chauvin compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Chauvin’s place among Louisiana’s.
Chauvin weather by month
Highs, lows and precipitation from NOAA’s grid at Chauvin’s center; snow, wet days and snow on the ground from Galliano, LA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 64° | 46° | 5.2" | 0.0" | 9 | 0 | 47° – 62° |
| February | 67° | 49° | 3.6" | 0.0" | 9 | 0 | 49° – 69° |
| March | 73° | 54° | 4.0" | 0.0" | 8 | 0 | 57° – 71° |
| April | 78° | 61° | 4.6" | 0.0" | 6 | 0 | 64° – 74° |
| May | 84° | 68° | 5.0" | 0.0" | 7 | 0 | 72° – 79° |
| June | 89° | 73° | 6.9" | 0.0" | 12 | 0 | 79° – 84° |
| July | 90° | 75° | 7.7" | 0.0" | 16 | 0 | 81° – 85° |
| August | 91° | 75° | 7.2" | 0.0" | 15 | 0 | 79° – 86° |
| September | 88° | 72° | 6.1" | 0.0" | 11 | 0 | 77° – 84° |
| October | 81° | 62° | 4.1" | 0.0" | 8 | 0 | 68° – 76° |
| November | 72° | 52° | 3.8" | 0.0" | 7 | 0 | 57° – 67° |
| December | 66° | 48° | 4.4" | 0.0" | 9 | 0 | 51° – 65° |
| Year | 79° | 61° | 62.6" | 0.0" | 115 | 0 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 49° to 69°. June is the most reliable, staying within 5°.
Where Chauvin’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 Chauvin’s center.
- Snow: Galliano, LA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Galliano, LA, 17 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 Chauvin’s climate
What is the weather like in Chauvin?
A typical July afternoon reaches 90°, a January night drops to 46°, and snow is almost unheard of. Milder January nights than 94% of U.S. towns; hotter July afternoons than 79% of U.S. towns.
How cold does it get in Chauvin in winter?
January nights average 46°. About 9 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 47°.
How much snow does Chauvin get?
About 0.0 inches in a normal winter at Galliano, LA, so most winters see none.
How hot does it get in Chauvin?
July, with a typical high of 90° and a low of 75°. About 49 days a year reach 90° (Galliano, LA).
When is the first and last frost in Chauvin?
In half of years the last spring frost (32°) comes by February 8 and the first fall frost by December 19, about 311 frost-free days, at Galliano, LA.
What growing zone is Chauvin 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 Chauvin?
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 Chauvin getting warmer?
Yes: 1991–2020 averaged 1.0° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 75% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Chauvin.
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.