Climateby Month

Sacramento, CA weather in December

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

December in Sacramento: cool, with frequent rain. Highs 56°F, lows 41°F, rain on about 10 days. It is one of the coolest months in Sacramento.

Normal high
56°F
Normal low
41°F
Wet days
10
3.5 in total
Muggy days
0
dew point 65°F+

How December changes from start to finish

Normal values at the start and end of December
December 1December 31
Normal high59°F55°F
Normal low42°F40°F
Chance of a wet day31%33%
Sunrise / sunset7:04 am / 4:45 pm7:23 am / 4:54 pm
Daylight9.7 h9.5 h

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

A typical December day

  1. 6 am41°Fdew point 39°F
  2. 9 am45°Fdew point 41°F
  3. Noon52°Fdew point 42°F
  4. 3 pm55°Fdew point 41°F
  5. 6 pm49°Fdew point 41°F
  6. 9 pm46°Fdew point 41°F

NOAA hourly normals (local standard time) from Sacramento Executive Airport (5 mi away); average wind 5 mph; clear or few clouds in 57% of daytime hours, mostly cloudy or overcast in 38%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F2 of 31
  • Hot dayshigh 90°F or more0 of 31
  • Muggy daysdaily mean dew point 65°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow10 of 31
  • Notable rainat least 0.10 in6 of 31
  • Freezing nightslow 32°F or below2 of 31

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

Rain in December

Normal precipitation is 3.5 in; a dry December brings about 1.8 in and a wet one about 5.4 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more. Snow is very rare.

How December varies from year to year

  • Warmest December, 1991-20202017: average high 61°F
  • Coolest December1994: average high 51°F
  • Wettest December2005: 9.5 in
  • Driest December1999: 0.03 in
  • Highest reading72°F (December 7, 2020)
  • Lowest reading25°F (December 9, 2013)

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 high65°F56°F57°F
Normal low45°F41°F41°F
Wet days71011
Comfortable days1623
Daylight10.1 h9.5 h9.8 h

Highs change by -9°F from November and +1°F into January.

Nearby alternatives in December

How Sacramento ranks in December

  • Normal high153rd warmest of 378 cities; 51st of 60 in California
  • Wet days223rd driest of 378
  • Comfortable days177th most of 340

What to pack for Sacramento in December

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

Frost in December

The first fall frost typically comes around Dec 16; in 1 year in 10 it comes before Nov 28. All frost dates for Sacramento.

Heating and cooling

December has 510 heating degree days and 0 cooling degree days (base 65°F), 14% of the year's total heating and cooling demand.

Questions

How cold is Sacramento in December?

The normal high is 56°F and the normal low is 41°F. From 1991 to 2020 the coldest December reading was 25°F (December 9, 2013).

Does it rain a lot in Sacramento in December?

About 10 days in December have at least 0.01 in of precipitation, and the normal total is 3.5 in. The wettest December in 1991-2020 was in 2005 (9.5 in); the driest was in 1999 (0.03 in).

Is December a good time to visit Sacramento?

December ranks 11th of 12 months on our comfort score for Sacramento (44 out of 100). It has about 2 comfortable days. The best month is April.

Where the numbers come from

  • Temperature, rain, snowfall and frost dates: Sacramento 5 Ese (USW00023271), 4.6 mi ESE of the city center, 38 ft . NOAA normals and daily records, 1991-2020.
  • Snow depth: Nicolaus #2 (USC00046194), 24 mi N of the city center, 43 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Sacramento Executive Airport (USW00023232), 5.2 mi S of the city center, 15 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Sacramento Executive Airport (724830-23232), 5.2 mi S of the city center, 19 ft . Hourly observations, 1991-2020.