Houma, Louisiana climate: Normal weather by month, frost dates and records
Houma's normal year runs from 44°F January nights to 91°F August afternoons, with 65.4 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 20.9°C, January lows of 6°C, August highs of 33°C, 1,662 mm of precipitation a year.
- NOAA stationHouma
- Station IDUSC00164407
- Location29.64°N 90.82°W
- Elevation8 ft (2 m)
- Population31,671
On October 22, the normal high in Houma is 80°F and the normal low 59°F, and the chance of measurable rain or snow is 23%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Houma.
- Jan 64° 44°
- Feb 67° 48°
- Mar 73° 54°
- Apr 78° 60°
- May 85° 67°
- Jun 90° 73°
- Jul 91° 74°
- Aug 91° 75°
- Sep 89° 71°
- Oct 82° 61°
- Nov 72° 52°
- Dec 66° 46°
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 Houma each month?
August is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 44°F. The most precipitation falls in July (9.06 in), the least in April (3.99 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 64°F | 44°F | 53.7°F | 5.57 | 10 | <1 | 5 | 10 h 30 min |
| February | 67°F | 48°F | 57.5°F | 4.44 | 8 | <1 | 1 | 11 h 10 min |
| March | 73°F | 54°F | 63.6°F | 4.48 | 7 | <1 | 1 | 12 h |
| April | 78°F | 60°F | 68.9°F | 3.99 | 6 | <1 | <1 | 12 h 50 min |
| May | 85°F | 67°F | 76.2°F | 4.38 | 7 | 4 | <1 | 13 h 40 min |
| June | 90°F | 73°F | 81.2°F | 8.40 | 12 | 15 | <1 | 14 h |
| July | 91°F | 74°F | 82.7°F | 9.06 | 16 | 22 | <1 | 13 h 50 min |
| August | 91°F | 75°F | 82.9°F | 6.50 | 14 | 21 | <1 | 13 h 10 min |
| September | 89°F | 71°F | 79.7°F | 5.77 | 11 | 12 | <1 | 12 h 20 min |
| October | 82°F | 61°F | 71.2°F | 4.31 | 7 | 1 | <1 | 11 h 30 min |
| November | 72°F | 52°F | 61.9°F | 4.35 | 7 | <1 | 1 | 10 h 40 min |
| December | 66°F | 46°F | 56.0°F | 4.17 | 10 | <1 | 2 | 10 h 20 min |
| Year (annual) | 79°F | 60°F | 69.6°F | 65.42 | 115 | 76 | 10 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 18°C | 6°C | 12.1°C | 141 mm |
| February | 20°C | 9°C | 14.2°C | 113 mm |
| March | 23°C | 12°C | 17.6°C | 114 mm |
| April | 26°C | 15°C | 20.5°C | 101 mm |
| May | 30°C | 20°C | 24.6°C | 111 mm |
| June | 32°C | 23°C | 27.3°C | 213 mm |
| July | 33°C | 23°C | 28.2°C | 230 mm |
| August | 33°C | 24°C | 28.3°C | 165 mm |
| September | 31°C | 22°C | 26.5°C | 147 mm |
| October | 28°C | 16°C | 21.8°C | 109 mm |
| November | 22°C | 11°C | 16.6°C | 110 mm |
| December | 19°C | 8°C | 13.3°C | 106 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00164407; 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 Houma?
Normal highs sit between 65°F and 85°F in February, March, April, October, November and December. Of those, April has the fewest days with rain (6).
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 USC00164407.
When is the last frost in Houma?
In Houma, 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 17 in half of years and before November 23 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 6
- First autumn frost, half of years before
- December 171 year in 10 before November 23; 9 in 10 before January 13
NOAA puts the median frost-free season at 312 days, and the season without a hard freeze (28°F) at 343 days.
A hard freeze (28°F) comes after January 26 in half of springs and before January 2 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Houma in zone 9b in ZIP code 70364, the nearest ZIP area.
Frost dates for every NOAA station in Louisiana · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00164407; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Houma?
In a normal year in Houma, 76 days a year reach 90°F, 10 nights fall to 32°F or colder and 115 days bring measurable precipitation.
- Days at 90°F or more
- 76a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 10a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 115a normal year
The highest temperature in this station's record (since 1893) is 104°F, on June 22, 1915; the lowest is 5°F, on February 13, 1899.
The wettest calendar year on that record is 1991, with 97.59 in; the snowiest season is 1894–95, with 16.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00164407; records: ACIS (NOAA Regional Climate Centers), station USC00164407. Records use complete months only; a month missing more than three days is left out.
How sunny is Houma?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Houma, 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 Houma need?
A normal year in Houma brings 1,250 heating degree days, 77% fewer than the median U.S. place (5,373), and 2,969 cooling degree days, 3.3 times the median (908). Two months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 7,350 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 363 | 12 |
| February | 236 | 26 |
| March | 123 | 79 |
| April | 40 | 159 |
| May | 4 | 352 |
| June | 0 | 487 |
| July | 0 | 549 |
| August | 0 | 556 |
| September | 0 | 441 |
| October | 30 | 222 |
| November | 156 | 64 |
| December | 300 | 21 |
| Year (annual) | 1,250 | 2,969 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00164407. 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.
How does Houma's climate compare?
Houma is warmer than 56 of the other 64 places with their own NOAA record in Louisiana, and wetter than 53. Across the 7,247 U.S. stations with normals, its annual mean of 69.6°F is warmer than 95%.
In the Köppen classification computed from these normals, Houma 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 Houma share this climate record?
6 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.
- Bayou Cane, LA22,143 people · 4 mi E
- Bayou Blue, LA11,218 people · 9 mi E
- Gray, LA5,524 people · 3 mi NE
- Bourg, LA2,386 people · 13 mi SE
- Presquille, LA1,885 people · 12 mi SE
- Dulac, LA574 people · 18 mi SE
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 Houma's climate
What is the coldest month in Houma?
January, with a normal high of 64°F and a normal low of 44°F. The warmest is August (91°F by day, 75°F at night).
Does it snow in Houma?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month in Houma?
July, with 9.06 in of precipitation in a normal year; the driest is April with 3.99 in.
What plant hardiness zone is Houma in?
The USDA's 2023 map puts Houma in zone 9b in ZIP code 70364, the nearest ZIP area.
How late can frost come in Houma?
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
- Houma in OctoberThis month day by day, its records and recent years
- Louisiana climateThe statewide normals and every place in the state
- Thibodaux, LA8 miles from this station, 70.1°F a year
- Morgan City, LA22 miles from this station, 70.1°F a year
- Reserve, LA32 miles from this station, 69.1°F a year
- Donaldsonville, LA32 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