Climateby Month

Galveston, TX weather in December

NOAA 1991-2020 normals and daily records · Galveston all year

Expect mild weather with frequent rain in Galveston in December, with highs near 66°F and lows near 52°F. Rain falls on about 10 days. It is one of the coolest months in Galveston.

Normal high
66°F
Normal low
52°F
Wet days
10
4.2 in total
Muggy days
4
dew point 65°F+

How December changes from start to finish

Normal values at the start and end of December
December 1December 31
Normal high68°F63°F
Normal low55°F49°F
Chance of a wet day29%32%
Sunrise / sunset6:56 am / 5:20 pm7:13 am / 5:31 pm
Daylight10.4 h10.3 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).

A typical December day

  1. 6 am49°Fdew point 45°F
  2. 9 am53°Fdew point 47°F
  3. Noon61°Fdew point 46°F
  4. 3 pm63°Fdew point 46°F
  5. 6 pm57°Fdew point 47°F
  6. 9 pm54°Fdew point 47°F

NOAA hourly normals (local standard time) from Houston Intercont Airport (58 mi away); average wind 8 mph; clear or few clouds in 28% of daytime hours, mostly cloudy or overcast in 59%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F9 of 31
  • Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph0 of 31
  • Hot dayshigh 90°F or more0 of 31
  • Muggy daysdaily mean dew point 65°F or more4 of 31
  • Wet daysat least 0.01 in of rain or melted snow10 of 31
  • Notable rainat least 0.10 in5 of 31
  • Freezing nightslow 32°F or below0 of 31

Average days per December, counted from daily records for each year 1991-2020.

Rain and snow in December

Normal precipitation is 4.2 in; a dry December brings about 2.2 in and a wet one about 5.6 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more. Normal snowfall is 0.2 in.

How December varies from year to year

  • Warmest December, 1991-20202007: average high 70°F
  • Coolest December2000: average high 58°F
  • Wettest December2016: 11.1 in
  • Driest December2013: 0.7 in
  • Highest reading81°F (December 13, 2016)
  • Lowest reading32°F (December 25, 2004)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

December compared with November and January

NovemberDecemberJanuary
Normal high72°F66°F63°F
Normal low59°F52°F49°F
Wet days91010
Comfortable days1199
Daylight10.7 h10.3 h10.5 h

Highs change by -6°F from November and -3°F into January.

Nearby alternatives in December

How Galveston ranks in December

  • Normal high73rd warmest of 378 cities; 11th of 38 in Texas
  • Wet days227th driest of 378
  • Comfortable days98th most of 340

What to pack for Galveston in December

  • A rain jacket or umbrella – rain on about 10 days

Heating and cooling

December has 230 heating degree days and 31 cooling degree days (base 65°F), 6% of the year's total heating and cooling demand.

Questions

How cold is Galveston in December?

The normal high is 66°F and the normal low is 52°F. From 1991 to 2020 the coldest December reading was 32°F (December 25, 2004).

Does it rain a lot in Galveston in December?

About 10 days in December have at least 0.01 in of precipitation, and the normal total is 4.2 in. The wettest December in 1991-2020 was in 2016 (11.1 in); the driest was in 2013 (0.7 in).

Does it snow in Galveston in December?

Yes. Normal snowfall in December is 0.2 in.

Is December a good time to visit Galveston?

December ranks 8th of 12 months on our comfort score for Galveston (55 out of 100). It has about 9 comfortable days. The best months are March, April and November.

Where the numbers come from

  • Temperature and rain: Galveston Scholes Fld (USW00012923), 4.2 mi WSW of the city center, 5 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Houston Nwso (USC00414333), 21 mi NW of the city center, 19 ft . NOAA normals and daily records, 1991-2020.
  • Frost dates: Galveston (USW00012944), 0.2 mi SW of the city center, 7 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Houston Intercont Airport (USW00012960), 58 mi NW of the city center, 95 ft (89 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Scholes Intl At Glston Apt (722420-12923), 4.5 mi WSW of the city center, 5 ft . Hourly observations, 1991-2020.