Thibodaux, Louisiana climate: Normal weather by month, frost dates and records
Thibodaux's normal year runs from 45°F January nights to 92°F July afternoons, with 71.1 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 21.2°C, January lows of 7°C, July highs of 33°C, 1,807 mm of precipitation a year.
- NOAA stationThibodaux (4 mi SE)
- Station IDUSC00169013
- Location29.75°N 90.77°W
- Elevation15 ft (5 m)
- From the center4 miles
- Population15,569
On October 23, the normal high in Thibodaux is 80°F and the normal low 58°F, and the chance of measurable rain or snow is 26%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Thibodaux.
- Jan 64° 45°
- Feb 68° 49°
- Mar 74° 54°
- Apr 79° 60°
- May 86° 67°
- Jun 91° 73°
- Jul 92° 75°
- Aug 92° 75°
- Sep 89° 71°
- Oct 82° 61°
- Nov 73° 52°
- Dec 66° 47°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Thibodaux each month?
July is the warmest month, with normal highs of 92°F; January the coldest, with normal lows of 45°F. The most precipitation falls in June (8.67 in), the least in November (3.80 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 64°F | 45°F | 54.2°F | 5.76 | 13 | <1 | 5 | 10 h 30 min |
| February | 68°F | 49°F | 58.2°F | 4.38 | 10 | <1 | 1 | 11 h 10 min |
| March | 74°F | 54°F | 63.9°F | 4.85 | 9 | <1 | 1 | 12 h |
| April | 79°F | 60°F | 69.6°F | 4.94 | 8 | <1 | <1 | 12 h 50 min |
| May | 86°F | 67°F | 76.6°F | 5.91 | 9 | 5 | <1 | 13 h 40 min |
| June | 91°F | 73°F | 81.9°F | 8.67 | 15 | 17 | <1 | 14 h |
| July | 92°F | 75°F | 83.6°F | 8.41 | 18 | 22 | <1 | 13 h 50 min |
| August | 92°F | 75°F | 83.5°F | 8.48 | 16 | 23 | <1 | 13 h 20 min |
| September | 89°F | 71°F | 79.9°F | 5.96 | 11 | 14 | <1 | 12 h 20 min |
| October | 82°F | 61°F | 71.4°F | 4.72 | 8 | 2 | <1 | 11 h 30 min |
| November | 73°F | 52°F | 62.2°F | 3.80 | 8 | <1 | 1 | 10 h 40 min |
| December | 66°F | 47°F | 56.4°F | 5.25 | 10 | <1 | 3 | 10 h 10 min |
| Year (annual) | 80°F | 61°F | 70.1°F | 71.13 | 134 | 83 | 11 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 18°C | 7°C | 12.3°C | 146 mm |
| February | 20°C | 9°C | 14.6°C | 111 mm |
| March | 23°C | 12°C | 17.7°C | 123 mm |
| April | 26°C | 15°C | 20.9°C | 125 mm |
| May | 30°C | 20°C | 24.8°C | 150 mm |
| June | 33°C | 23°C | 27.7°C | 220 mm |
| July | 33°C | 24°C | 28.7°C | 214 mm |
| August | 33°C | 24°C | 28.6°C | 215 mm |
| September | 32°C | 22°C | 26.6°C | 151 mm |
| October | 28°C | 16°C | 21.9°C | 120 mm |
| November | 23°C | 11°C | 16.8°C | 97 mm |
| December | 19°C | 8°C | 13.6°C | 133 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00169013; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Thibodaux?
Normal highs sit between 65°F and 85°F in February, March, April, October, November and December. Of those, November has the fewest days with rain (8).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00169013.
When is the last frost in Thibodaux?
In Thibodaux, the last spring frost (32°F) comes after February 5 in half of years and after March 7 in one year in ten; the first autumn frost comes before December 14 in half of years and before November 19 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- February 51 year in 10 after March 7; 9 in 10 after January 3
- First autumn frost, half of years before
- December 141 year in 10 before November 19; 9 in 10 before January 15
NOAA puts the median frost-free season at 311 days, and the season without a hard freeze (28°F) at 346 days.
A hard freeze (28°F) comes after January 23 in half of springs and before January 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Thibodaux in zone 9b in ZIP code 70310, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Thibodaux's NOAA station is in zone 9b: the coldest night of a typical year reaches 26°F (25 complete years).
Frost dates for every NOAA station in Louisiana · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00169013; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Thibodaux?
In a normal year in Thibodaux, 83 days a year reach 90°F, 11 nights fall to 32°F or colder and 134 days bring measurable precipitation.
- Days at 90°F or more
- 83a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 11a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 134a normal year
The highest temperature in this station's record (since 1893) is 105°F, on August 19, 1909; the lowest is 6°F, on February 13, 1899.
The wettest calendar year on that record is 1991, with 98.63 in; the snowiest season is 1957–58, with 2.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00169013; records: ACIS (NOAA Regional Climate Centers), station USC00169013. Records use complete months only; a month missing more than three days is left out.
How sunny is Thibodaux?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Thibodaux, 4.7 kWh per square metre a day. October is the sunniest month (85%) and February the cloudiest (73%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 75% | 3.0 |
| February | 73% | 3.6 |
| March | 79% | 4.9 |
| April | 81% | 5.8 |
| May | 84% | 6.5 |
| June | 79% | 6.1 |
| July | 75% | 5.6 |
| August | 76% | 5.4 |
| September | 81% | 5.1 |
| October | 85% | 4.5 |
| November | 82% | 3.5 |
| December | 74% | 2.7 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Thibodaux need?
A normal year in Thibodaux brings 1,215 heating degree days, 77% fewer than the median U.S. place (5,373), and 3,102 cooling degree days, 3.4 times the median (908). One month needs 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 7,517 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 355 | 19 |
| February | 225 | 35 |
| March | 122 | 87 |
| April | 33 | 170 |
| May | 2 | 363 |
| June | 0 | 505 |
| July | 0 | 577 |
| August | 0 | 574 |
| September | 0 | 449 |
| October | 27 | 224 |
| November | 151 | 69 |
| December | 298 | 31 |
| Year (annual) | 1,215 | 3,102 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00169013. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Thibodaux been warmer than normal lately?
2025 averaged 69.8°F, 0.3°F below the 1991-2020 normal of 70.1°F. 2 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 69.5°F | −0.6°F | 86.37 |
| 2022 | 69.2°F | −0.9°F | 57.25 |
| 2023 | 71.3°F | +1.3°F | 33.39 |
| 2024 | 70.8°F | +0.7°F | 75.60 |
| 2025 | 69.8°F | −0.3°F | 52.47 |
Over 90 complete years from 1896 to 2025, the station's annual mean temperature rose at a fitted 1.3°F per century (+0.07°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00169013; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Thibodaux's climate compare?
Thibodaux is warmer than 59 of the other 64 places with their own NOAA record in Louisiana, and wetter than 62. Across the 7,247 U.S. stations with normals, its annual mean of 70.1°F is warmer than 95%.
In the Köppen classification computed from these normals, Thibodaux is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Thibodaux share this climate record?
12 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Raceland, LA10,517 people · 9 mi E
- Schriever, LA6,052 people · 4 mi SW
- Chackbay, LA5,287 people · 7 mi N
- Lafourche Crossing, LA2,439 people · 1 mi N
- Lockport, LA2,351 people · 16 mi SE
- Mathews, LA1,579 people · 14 mi E
- Lockport Heights, LA1,441 people · 15 mi SE
- Bayou Country Club, LA1,381 people · 2 mi NW
- Labadieville, LA1,324 people · 12 mi NW
- Kraemer, LA969 people · 11 mi NE
- Choctaw, LA433 people · 7 mi NE
- Moonshine, LA214 people · 15 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Thibodaux's climate
What is the coldest month in Thibodaux?
January, with a normal high of 64°F and a normal low of 45°F. The warmest is July (92°F by day, 75°F at night).
Does it snow in Thibodaux?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month in Thibodaux?
June, with 8.67 in of precipitation in a normal year; the driest is November with 3.80 in.
What plant hardiness zone is Thibodaux in?
The USDA's 2023 map puts Thibodaux in zone 9b in ZIP code 70310, the nearest ZIP area. By the same method at Thibodaux's NOAA station, the coldest night of a typical year reaches 26°F (25 years, 1991-2020): zone 9b.
How late can frost come in Thibodaux?
In half of years the last 32°F night comes after February 5; in one year in ten it comes after March 7. Waiting until March 7 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Louisiana climateThe statewide normals and every place in the state
- Houma, LA8 miles from this station, 69.6°F a year
- Reserve, LA24 miles from this station, 69.1°F a year
- Morgan City, LA25 miles from this station, 70.1°F a year
- Donaldsonville, LA27 miles from this station, 68.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made