Lafayette weather in December: Lafayette, Louisiana: normal highs, lows, rain and records for December
Lafayette in December has a normal high of 64°F and a normal low of 45°F, a daily mean of 55°F, falling from 67°F on the 1st to 62°F by the 31st. Measurable precipitation falls on 10 days in a normal December, 4.96 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 18°C and low of 7°C, 126 mm of precipitation in December.
- NOAA stationLafayette Regional Airport
- Station IDUSW00013976
- Location30.20°N 91.99°W
- Elevation38 ft (12 m)
- Population122,280
- Jan 62° 44°
- Feb 66° 47°
- Mar 73° 53°
- Apr 79° 59°
- May 86° 67°
- Jun 90° 73°
- Jul 92° 75°
- Aug 92° 75°
- Sep 89° 70°
- Oct 81° 60°
- Nov 72° 50°
- Dec 64° 45°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Lafayette in December?
The normal high is 64°F and the normal low 45°F, for a daily mean of 54.9°F. December is 5.9°F cooler than November and 2.1°F warmer than January. December is the 11th warmest month of the year in Lafayette and the 7th wettest. Across the month the normal high falls 5°F, from 67°F on December 1 to 62°F on December 31. From one year to the next December's mean temperature typically moves about 3.1°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 52°F and 58°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 33%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 67°F | 47°F | 30% | 19% |
| December 8 | 66°F | 46°F | 31% | 20% |
| December 15 | 64°F | 45°F | 32% | 21% |
| December 22 | 63°F | 45°F | 32% | 21% |
| December 31 | 62°F | 44°F | 33% | 22% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 67°F | 47°F | 30% | 19% | 10 h 20 min |
| December 2 | 67°F | 47°F | 30% | 19% | 10 h 20 min |
| December 3 | 67°F | 47°F | 30% | 20% | 10 h 20 min |
| December 4 | 67°F | 47°F | 30% | 20% | 10 h 20 min |
| December 5 | 66°F | 47°F | 30% | 20% | 10 h 20 min |
| December 6 | 66°F | 46°F | 30% | 20% | 10 h 20 min |
| December 7 | 66°F | 46°F | 31% | 20% | 10 h 20 min |
| December 8 | 66°F | 46°F | 31% | 20% | 10 h 20 min |
| December 9 | 66°F | 46°F | 31% | 20% | 10 h 20 min |
| December 10 | 65°F | 46°F | 31% | 20% | 10 h 20 min |
| December 11 | 65°F | 46°F | 31% | 20% | 10 h 10 min |
| December 12 | 65°F | 46°F | 31% | 21% | 10 h 10 min |
| December 13 | 65°F | 46°F | 31% | 21% | 10 h 10 min |
| December 14 | 65°F | 46°F | 31% | 21% | 10 h 10 min |
| December 15 | 64°F | 45°F | 32% | 21% | 10 h 10 min |
| December 16 | 64°F | 45°F | 32% | 21% | 10 h 10 min |
| December 17 | 64°F | 45°F | 32% | 21% | 10 h 10 min |
| December 18 | 64°F | 45°F | 32% | 21% | 10 h 10 min |
| December 19 | 64°F | 45°F | 32% | 21% | 10 h 10 min |
| December 20 | 64°F | 45°F | 32% | 21% | 10 h 10 min |
| December 21 | 63°F | 45°F | 32% | 21% | 10 h 10 min |
| December 22 | 63°F | 45°F | 32% | 21% | 10 h 10 min |
| December 23 | 63°F | 45°F | 32% | 21% | 10 h 10 min |
| December 24 | 63°F | 44°F | 32% | 21% | 10 h 10 min |
| December 25 | 63°F | 44°F | 32% | 21% | 10 h 10 min |
| December 26 | 63°F | 44°F | 32% | 21% | 10 h 10 min |
| December 27 | 63°F | 44°F | 33% | 22% | 10 h 10 min |
| December 28 | 63°F | 44°F | 33% | 22% | 10 h 10 min |
| December 29 | 62°F | 44°F | 33% | 22% | 10 h 10 min |
| December 30 | 62°F | 44°F | 33% | 22% | 10 h 10 min |
| December 31 | 62°F | 44°F | 33% | 22% | 10 h 10 min |
- Normal high
- 64°FDecember average
- Normal low
- 45°FDecember average
- Precipitation
- 4.96 inmonth total
- Days with precipitation
- 100.01 inch or more
- Nights at 32°F or colder
- 3
- Daylight
- 10 h 20 min to 10 h 10 minDecember 1 to December 31
- Days at 70°F or more
- 11
- Days at 80°F or more
- 1
- Sunshine
- 70%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013976; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Lafayette in December?
On a given December day the chance of 0.01 inch or more is 31% on average, highest around December 30 (33%). In all, 4.96 in falls on 10 days of a normal December, 2 of them with an inch or more.
In a normal December in Lafayette, 3 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013976.
How humid and windy is Lafayette in December?
At 3 p.m. the normal temperature is 60°F with 56% relative humidity and a dew point of 44°F; at 6 a.m. it is 47°F with 85% humidity. The wind averages 7.9 mph, most often from the north-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 47°F | 43°F | 85% | 6.7 mph | – |
| 9 a.m. | 51°F | 44°F | 78% | 8.4 mph | 50% |
| noon | 57°F | 44°F | 62% | 9.7 mph | 53% |
| 3 p.m. | 60°F | 44°F | 56% | 10.3 mph | 52% |
| 6 p.m. | 55°F | 44°F | 67% | 7.3 mph | 57% |
| 9 p.m. | 51°F | 44°F | 77% | 6.9 mph | 59% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00013976. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for December in Lafayette?
The warmest December temperature on this station's record (since 1893) is 89°F, on December 1, 1906; the coldest is 9°F, on December 23, 1989. The wettest December brought 15.74 in (1912).
The December mean against the 1991-2020 normal of 54.9°F: 2021 65.2°F (+10.3), 2022 58.0°F (+3.1), 2023 57.3°F (+2.4), 2024 58.5°F (+3.6), 2025 56.8°F (+1.9). 5 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 65.2°F | +10.3°F | 3.29 in |
| 2022 | 58.0°F | +3.1°F | 6.01 in |
| 2023 | 57.3°F | +2.4°F | 9.47 in |
| 2024 | 58.5°F | +3.6°F | 7.88 in |
| 2025 | 56.8°F | +1.9°F | 7.58 in |
Source: records: ACIS, station USW00013976; recent months: ACIS, station USW00013976. Records and recent months use complete months only.
How does December in Lafayette compare across Louisiana?
Across the 65 places PlainClimate covers in Louisiana, December normal highs run from 56°F in Bastrop to 66°F in Houma; Lafayette's is 64°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.