Galveston weather in December: Galveston, Texas: normal highs, lows, rain and records for December
Galveston in December has a normal high of 66°F and a normal low of 52°F, a daily mean of 59°F, falling from 68°F on the 1st to 63°F by the 31st. Measurable precipitation falls on 10 days in a normal December, 4.23 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 19°C and low of 11°C, 107 mm of precipitation and 0 cm of snow in December.
- NOAA stationGalveston Scholes Field
- Station IDUSW00012923
- Location29.27°N 94.86°W
- Elevation5 ft (2 m)
- Population53,538
- Jan 63° 49°
- Feb 66° 52°
- Mar 72° 58°
- Apr 78° 65°
- May 84° 72°
- Jun 90° 78°
- Jul 91° 80°
- Aug 92° 80°
- Sep 89° 76°
- Oct 82° 69°
- Nov 72° 59°
- Dec 66° 52°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Galveston in December?
The normal high is 66°F and the normal low 52°F, for a daily mean of 58.5°F. December is 7.0°F cooler than November and 2.5°F warmer than January. December is the 11th warmest month of the year in Galveston and the 6th wettest, and the snowiest. Across the month the normal high falls 5°F, from 68°F on December 1 to 63°F on December 31. From one year to the next December's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 56°F and 61°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 32%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 68°F | 55°F | 28% | 16% |
| December 8 | 67°F | 53°F | 30% | 16% |
| December 15 | 66°F | 52°F | 31% | 16% |
| December 22 | 64°F | 50°F | 32% | 16% |
| December 31 | 63°F | 49°F | 32% | 16% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 68°F | 55°F | 28% | 16% | 10 h 30 min |
| December 2 | 68°F | 54°F | 28% | 16% | 10 h 20 min |
| December 3 | 68°F | 54°F | 29% | 16% | 10 h 20 min |
| December 4 | 68°F | 54°F | 29% | 16% | 10 h 20 min |
| December 5 | 67°F | 54°F | 29% | 16% | 10 h 20 min |
| December 6 | 67°F | 54°F | 29% | 16% | 10 h 20 min |
| December 7 | 67°F | 53°F | 29% | 16% | 10 h 20 min |
| December 8 | 67°F | 53°F | 30% | 16% | 10 h 20 min |
| December 9 | 67°F | 53°F | 30% | 16% | 10 h 20 min |
| December 10 | 66°F | 53°F | 30% | 16% | 10 h 20 min |
| December 11 | 66°F | 52°F | 30% | 16% | 10 h 20 min |
| December 12 | 66°F | 52°F | 30% | 16% | 10 h 20 min |
| December 13 | 66°F | 52°F | 30% | 16% | 10 h 20 min |
| December 14 | 66°F | 52°F | 30% | 16% | 10 h 20 min |
| December 15 | 66°F | 52°F | 31% | 16% | 10 h 20 min |
| December 16 | 65°F | 52°F | 31% | 16% | 10 h 20 min |
| December 17 | 65°F | 51°F | 31% | 16% | 10 h 20 min |
| December 18 | 65°F | 51°F | 31% | 16% | 10 h 20 min |
| December 19 | 65°F | 51°F | 31% | 16% | 10 h 20 min |
| December 20 | 65°F | 51°F | 31% | 16% | 10 h 20 min |
| December 21 | 65°F | 51°F | 31% | 16% | 10 h 20 min |
| December 22 | 64°F | 50°F | 32% | 16% | 10 h 20 min |
| December 23 | 64°F | 50°F | 32% | 16% | 10 h 20 min |
| December 24 | 64°F | 50°F | 32% | 16% | 10 h 20 min |
| December 25 | 64°F | 50°F | 32% | 16% | 10 h 20 min |
| December 26 | 64°F | 50°F | 32% | 16% | 10 h 20 min |
| December 27 | 64°F | 50°F | 32% | 16% | 10 h 20 min |
| December 28 | 64°F | 50°F | 32% | 16% | 10 h 20 min |
| December 29 | 64°F | 49°F | 32% | 16% | 10 h 20 min |
| December 30 | 64°F | 49°F | 32% | 16% | 10 h 20 min |
| December 31 | 63°F | 49°F | 32% | 16% | 10 h 20 min |
- Normal high
- 66°FDecember average
- Normal low
- 52°FDecember average
- Precipitation
- 4.23 inmonth total
- Days with precipitation
- 100.01 inch or more
- Snowfall
- 0.1 inmonth total
- Daylight
- 10 h 30 min to 10 h 20 minDecember 1 to December 31
- Days at 70°F or more
- 10
- Sunshine
- 71%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00012923; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Galveston in December?
On a given December day the chance of 0.01 inch or more is 31% on average, highest around December 27 (32%). In all, 4.23 in falls on 10 days of a normal December, 1 of them with an inch or more.
In a normal December in Galveston, snowfall averages 0.1 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00012923.
What are the records for December in Galveston?
The warmest December temperature on Galveston's official record (since 1874) is 82°F, on December 28, 2021; the coldest is 14°F, on December 25, 1983. The wettest December brought 11.08 in (2016); the snowiest, 1.0 inches (1989).
The December mean against the 1991-2020 normal of 58.5°F: 2021 69.8°F (+11.3), 2022 60.3°F (+1.8), 2023 60.8°F (+2.3), 2024 63.5°F (+5.0), 2025 60.7°F (+2.2). 5 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 69.8°F | +11.3°F | 1.19 in |
| 2022 | 60.3°F | +1.8°F | 3.01 in |
| 2023 | 60.8°F | +2.3°F | 2.94 in |
| 2024 | 63.5°F | +5.0°F | 2.60 in |
| 2025 | 60.7°F | +2.2°F | 1.81 in |
Source: records: ACIS, NWS threaded record GLSthr; recent months: ACIS, station USW00012923. Records and recent months use complete months only.
How does December in Galveston compare across Texas?
Across the 321 places PlainClimate covers in Texas, December normal highs run from 49°F in Dumas to 74°F in Brownsville; Galveston's is 66°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.