Climateby Month

Mobile, AL weather in December

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

Mobile is cool in December, with frequent rain: highs average 64°F and nights drop to about 45°F. Rain falls on about 11 days. It is one of the coolest months in Mobile.

Normal high
64°F
Normal low
45°F
Wet days
11
5.2 in total
Muggy days
2
dew point 65°F+

How December changes from start to finish

Normal values at the start and end of December
December 1December 31
Normal high67°F62°F
Normal low47°F43°F
Chance of a wet day30%36%
Sunrise / sunset6:31 am / 4:50 pm6:49 am / 5:00 pm
Daylight10.3 h10.2 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 am47°Fdew point 43°F
  2. 9 am53°Fdew point 45°F
  3. Noon60°Fdew point 45°F
  4. 3 pm61°Fdew point 45°F
  5. 6 pm54°Fdew point 46°F
  6. 9 pm51°Fdew point 46°F

NOAA hourly normals (local standard time) from Mobile (12 mi away); average wind 8 mph; clear or few clouds in 44% of daytime hours, mostly cloudy or overcast in 44%.

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 more2 of 31
  • Wet daysat least 0.01 in of rain or melted snow11 of 31
  • Notable rainat least 0.10 in6 of 31
  • Freezing nightslow 32°F or below4 of 31

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

Rain and snow in December

Normal precipitation is 5.2 in; a dry December brings about 3.2 in and a wet one about 5.4 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 2 an inch or more. Normal snowfall is 0.1 in.

How December varies from year to year

  • Warmest December, 1991-20202015: average high 69°F
  • Coolest December2000: average high 57°F
  • Wettest December2009: 13.5 in
  • Driest December1994: 2.0 in
  • Highest reading81°F (December 8, 1998)
  • Lowest reading19°F (December 20, 1996)

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°F64°F62°F
Normal low50°F45°F43°F
Wet days81111
Comfortable days1699
Daylight10.6 h10.2 h10.4 h

Highs change by -8°F from November and -2°F into January.

Nearby alternatives in December

How Mobile ranks in December

  • Normal high82nd warmest of 378 cities; 2nd of 6 in Alabama
  • Wet days244th driest of 378
  • Comfortable days78th most of 340

What to pack for Mobile in December

  • A rain jacket or umbrella – rain on about 11 days

Frost in December

The first fall frost typically comes around Dec 6; in 1 year in 10 it comes before Nov 15. All frost dates for Mobile.

Heating and cooling

December has 338 heating degree days and 15 cooling degree days (base 65°F), 8% of the year's total heating and cooling demand.

Questions

How cold is Mobile in December?

The normal high is 64°F and the normal low is 45°F. From 1991 to 2020 the coldest December reading was 19°F (December 20, 1996).

Does it rain a lot in Mobile in December?

About 11 days in December have at least 0.01 in of precipitation, and the normal total is 5.2 in. The wettest December in 1991-2020 was in 2009 (13.5 in); the driest was in 1994 (2.1 in).

Does it snow in Mobile in December?

Yes. Normal snowfall in December is 0.1 in.

Is December a good time to visit Mobile?

December ranks 7th of 12 months on our comfort score for Mobile (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 frost dates: Mobile Downtown Airport (USW00013838), 4.9 mi SSW of the city center, 26 ft . NOAA normals and daily records, 1991-2020.
  • Rain: Fairhope 2 Ne (USC00012813), 14 mi SE of the city center, 23 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall, snow depth, humidity and wind by hour and cloud cover: Mobile (USW00013894), 12 mi W of the city center, 208 ft (199 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Mobile Downtown Airport (722235-13838), 5.6 mi SSW of the city center, 16 ft . Hourly observations, 1991-2020.