Richmond weather in December: Richmond, California: normal highs, lows, rain and records for December
Richmond in December has a normal high of 58°F and a normal low of 44°F, a daily mean of 51°F, falling from 60°F on the 1st to 57°F by the 31st. Measurable precipitation falls on 10 days in a normal December, 4.90 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 15°C and low of 7°C, 124 mm of precipitation in December.
- NOAA stationRichmond
- Station IDUSC00047414
- Location37.92°N 122.38°W
- Elevation20 ft (6 m)
- Population115,353
- Jan 58° 44°
- Feb 61° 46°
- Mar 64° 47°
- Apr 67° 49°
- May 69° 52°
- Jun 72° 54°
- Jul 71° 55°
- Aug 72° 56°
- Sep 75° 56°
- Oct 73° 54°
- Nov 65° 49°
- Dec 58° 44°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Richmond in December?
The normal high is 58°F and the normal low 44°F, for a daily mean of 51.3°F. December is 5.4°F cooler than November and 0.2°F warmer than January. December is the 11th warmest month of the year in Richmond and the 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 1.7°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 50°F and 53°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 | 60°F | 46°F | 28% | 21% |
| December 8 | 59°F | 45°F | 30% | 23% |
| December 15 | 58°F | 44°F | 31% | 24% |
| December 22 | 57°F | 44°F | 31% | 24% |
| December 31 | 57°F | 44°F | 32% | 24% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 29)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 60°F | 46°F | 28% | 21% | 9 h 50 min |
| December 2 | 60°F | 46°F | 28% | 21% | 9 h 40 min |
| December 3 | 60°F | 46°F | 28% | 22% | 9 h 40 min |
| December 4 | 60°F | 46°F | 29% | 22% | 9 h 40 min |
| December 5 | 59°F | 45°F | 29% | 22% | 9 h 40 min |
| December 6 | 59°F | 45°F | 29% | 23% | 9 h 40 min |
| December 7 | 59°F | 45°F | 29% | 23% | 9 h 40 min |
| December 8 | 59°F | 45°F | 30% | 23% | 9 h 40 min |
| December 9 | 59°F | 45°F | 30% | 23% | 9 h 40 min |
| December 10 | 59°F | 45°F | 30% | 23% | 9 h 40 min |
| December 11 | 59°F | 45°F | 30% | 24% | 9 h 40 min |
| December 12 | 58°F | 45°F | 30% | 24% | 9 h 40 min |
| December 13 | 58°F | 45°F | 31% | 24% | 9 h 30 min |
| December 14 | 58°F | 44°F | 31% | 24% | 9 h 30 min |
| December 15 | 58°F | 44°F | 31% | 24% | 9 h 30 min |
| December 16 | 58°F | 44°F | 31% | 24% | 9 h 30 min |
| December 17 | 58°F | 44°F | 31% | 24% | 9 h 30 min |
| December 18 | 58°F | 44°F | 31% | 24% | 9 h 30 min |
| December 19 | 58°F | 44°F | 31% | 24% | 9 h 30 min |
| December 20 | 58°F | 44°F | 31% | 24% | 9 h 30 min |
| December 21 | 58°F | 44°F | 31% | 24% | 9 h 30 min |
| December 22 | 57°F | 44°F | 31% | 24% | 9 h 30 min |
| December 23 | 57°F | 44°F | 31% | 24% | 9 h 30 min |
| December 24 | 57°F | 44°F | 31% | 24% | 9 h 30 min |
| December 25 | 57°F | 44°F | 31% | 24% | 9 h 30 min |
| December 26 | 57°F | 44°F | 31% | 24% | 9 h 30 min |
| December 27 | 57°F | 44°F | 31% | 24% | 9 h 30 min |
| December 28 | 57°F | 44°F | 32% | 24% | 9 h 30 min |
| December 29 | 57°F | 44°F | 32% | 24% | 9 h 30 min |
| December 30 | 57°F | 44°F | 32% | 24% | 9 h 30 min |
| December 31 | 57°F | 44°F | 32% | 24% | 9 h 30 min |
- Normal high
- 58°FDecember average
- Normal low
- 44°FDecember average
- Precipitation
- 4.90 inmonth total
- Days with precipitation
- 100.01 inch or more
- Daylight
- 9 h 50 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 USC00047414; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Richmond in December?
On a given December day the chance of 0.01 inch or more is 30% on average, highest around December 31 (32%). In all, 4.90 in falls on 10 days of a normal December, 2 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00047414.
What are the records for December in Richmond?
The warmest December temperature on this station's record (since 1950) is 76°F, on December 27, 1967; the coldest is 24°F, on December 9, 1972. The wettest December brought 15.40 in (2002).
Source: records: ACIS, station USC00047414. Records and recent months use complete months only.
How does December in Richmond 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; Richmond's is 58°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.