Concord weather in December: Concord, California: normal highs, lows, rain and records for December
Concord in December has a normal high of 58°F and a normal low of 41°F, a daily mean of 50°F, falling from 60°F on the 1st to 57°F by the 31st. Measurable precipitation falls on 10 days in a normal December, 3.18 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 15°C and low of 5°C, 81 mm of precipitation in December.
- NOAA stationConcord Buchanan Field
- Station IDUSW00023254
- Location37.99°N 122.06°W
- Elevation18 ft (6 m)
- From the center3 miles
- Population124,016
- Jan 58° 41°
- Feb 62° 44°
- Mar 67° 47°
- Apr 71° 49°
- May 78° 53°
- Jun 84° 57°
- Jul 88° 59°
- Aug 88° 59°
- Sep 85° 58°
- Oct 78° 53°
- Nov 66° 45°
- Dec 58° 41°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Concord in December?
The normal high is 58°F and the normal low 41°F, for a daily mean of 49.5°F. December is 6.1°F cooler than November and 0.1°F warmer than January. December is the 11th warmest month of the year in Concord and the 3rd wettest. Across the month the normal high falls 3°F, from 60°F on December 1 to 57°F on December 31. From one year to the next December's mean temperature typically moves about 2.2°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 47°F and 52°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 31%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 60°F | 42°F | 27% | 18% |
| December 8 | 59°F | 41°F | 29% | 19% |
| December 15 | 58°F | 41°F | 31% | 20% |
| December 22 | 57°F | 40°F | 31% | 20% |
| December 31 | 57°F | 40°F | 31% | 18% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 20)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 60°F | 42°F | 27% | 18% | 9 h 40 min |
| December 2 | 60°F | 42°F | 28% | 18% | 9 h 40 min |
| December 3 | 60°F | 42°F | 28% | 18% | 9 h 40 min |
| December 4 | 60°F | 42°F | 28% | 19% | 9 h 40 min |
| December 5 | 60°F | 41°F | 29% | 19% | 9 h 40 min |
| December 6 | 59°F | 41°F | 29% | 19% | 9 h 40 min |
| December 7 | 59°F | 41°F | 29% | 19% | 9 h 40 min |
| December 8 | 59°F | 41°F | 29% | 19% | 9 h 40 min |
| December 9 | 59°F | 41°F | 30% | 20% | 9 h 40 min |
| December 10 | 59°F | 41°F | 30% | 20% | 9 h 40 min |
| December 11 | 59°F | 41°F | 30% | 20% | 9 h 40 min |
| December 12 | 58°F | 41°F | 31% | 20% | 9 h 30 min |
| December 13 | 58°F | 41°F | 31% | 20% | 9 h 30 min |
| December 14 | 58°F | 41°F | 31% | 20% | 9 h 30 min |
| December 15 | 58°F | 41°F | 31% | 20% | 9 h 30 min |
| December 16 | 58°F | 41°F | 31% | 20% | 9 h 30 min |
| December 17 | 58°F | 40°F | 31% | 20% | 9 h 30 min |
| December 18 | 58°F | 40°F | 31% | 20% | 9 h 30 min |
| December 19 | 58°F | 40°F | 31% | 20% | 9 h 30 min |
| December 20 | 58°F | 40°F | 31% | 20% | 9 h 30 min |
| December 21 | 58°F | 40°F | 31% | 20% | 9 h 30 min |
| December 22 | 57°F | 40°F | 31% | 20% | 9 h 30 min |
| December 23 | 57°F | 40°F | 31% | 19% | 9 h 30 min |
| December 24 | 57°F | 40°F | 31% | 19% | 9 h 30 min |
| December 25 | 57°F | 40°F | 31% | 19% | 9 h 30 min |
| December 26 | 57°F | 40°F | 31% | 19% | 9 h 30 min |
| December 27 | 57°F | 40°F | 31% | 19% | 9 h 30 min |
| December 28 | 57°F | 40°F | 31% | 19% | 9 h 30 min |
| December 29 | 57°F | 40°F | 31% | 19% | 9 h 30 min |
| December 30 | 57°F | 40°F | 31% | 18% | 9 h 30 min |
| December 31 | 57°F | 40°F | 31% | 18% | 9 h 30 min |
- Normal high
- 58°FDecember average
- Normal low
- 41°FDecember average
- Precipitation
- 3.18 inmonth total
- Days with precipitation
- 100.01 inch or more
- Nights at 32°F or colder
- 4
- Daylight
- 9 h 40 min to 9 h 30 minDecember 1 to December 31
- Sunshine
- 74%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023254; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Concord in December?
On a given December day the chance of 0.01 inch or more is 30% on average, highest around December 17 (31%). In all, 3.18 in falls on 10 days of a normal December, 1 of them with an inch or more.
In a normal December in Concord, 4 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023254.
What are the records for December in Concord?
The warmest December temperature on this station's record (since 1999) is 75°F, on December 2, 2011; the coldest is 24°F, on December 10, 2013. The wettest December brought 8.79 in (2002).
The December mean against the 1991-2020 normal of 49.5°F: 2021 48.3°F (−1.2), 2022 47.4°F (−2.1), 2023 52.9°F (+3.4), 2024 51.8°F (+2.3), 2025 49.9°F (+0.4). 3 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 48.3°F | −1.2°F | 4.77 in |
| 2022 | 47.4°F | −2.1°F | 7.97 in |
| 2023 | 52.9°F | +3.4°F | 2.40 in |
| 2024 | 51.8°F | +2.3°F | 1.61 in |
| 2025 | 49.9°F | +0.4°F | 1.42 in |
Source: records: ACIS, station USW00023254; recent months: ACIS, station USW00023254. Records and recent months use complete months only.
How does December in Concord compare across California?
Across the 219 places PlainClimate covers in California, December normal highs run from 38°F in Tahoma to 71°F in Anaheim; Concord's is 58°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.