Martinez weather in December: Martinez, California: normal highs, lows, rain and records for December
Martinez in December has a normal high of 57°F and a normal low of 35°F, a daily mean of 46°F, falling from 59°F on the 1st to 55°F by the 31st. Measurable precipitation falls on 10 days in a normal December, 3.81 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 14°C and low of 2°C, 97 mm of precipitation in December.
- NOAA stationMartinez Water Treatment Plant
- Station IDUSC00045378
- Location38.01°N 122.11°W
- Elevation40 ft (12 m)
- Population37,006
- Jan 56° 35°
- Feb 61° 37°
- Mar 66° 40°
- Apr 71° 43°
- May 78° 46°
- Jun 85° 50°
- Jul 88° 51°
- Aug 87° 51°
- Sep 84° 50°
- Oct 76° 46°
- Nov 64° 39°
- Dec 57° 35°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Martinez in December?
The normal high is 57°F and the normal low 35°F, for a daily mean of 45.6°F. December is 6.3°F cooler than November and 0.0°F cooler than January. December is the 11th warmest month of the year in Martinez and the 2nd wettest. Across the month the normal high falls 4°F, from 59°F on December 1 to 55°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 43°F and 48°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 35%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 59°F | 36°F | 30% | 21% |
| December 8 | 57°F | 35°F | 32% | 22% |
| December 15 | 56°F | 35°F | 34% | 23% |
| December 22 | 56°F | 34°F | 34% | 23% |
| December 31 | 55°F | 34°F | 35% | 24% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 25)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 59°F | 36°F | 30% | 21% | 9 h 40 min |
| December 2 | 59°F | 36°F | 31% | 21% | 9 h 40 min |
| December 3 | 59°F | 36°F | 31% | 21% | 9 h 40 min |
| December 4 | 58°F | 36°F | 31% | 21% | 9 h 40 min |
| December 5 | 58°F | 36°F | 32% | 21% | 9 h 40 min |
| December 6 | 58°F | 36°F | 32% | 22% | 9 h 40 min |
| December 7 | 58°F | 35°F | 32% | 22% | 9 h 40 min |
| December 8 | 57°F | 35°F | 32% | 22% | 9 h 40 min |
| December 9 | 57°F | 35°F | 33% | 22% | 9 h 40 min |
| December 10 | 57°F | 35°F | 33% | 22% | 9 h 40 min |
| December 11 | 57°F | 35°F | 33% | 23% | 9 h 40 min |
| December 12 | 57°F | 35°F | 33% | 23% | 9 h 30 min |
| December 13 | 57°F | 35°F | 33% | 23% | 9 h 30 min |
| December 14 | 56°F | 35°F | 34% | 23% | 9 h 30 min |
| December 15 | 56°F | 35°F | 34% | 23% | 9 h 30 min |
| December 16 | 56°F | 35°F | 34% | 23% | 9 h 30 min |
| December 17 | 56°F | 35°F | 34% | 23% | 9 h 30 min |
| December 18 | 56°F | 34°F | 34% | 23% | 9 h 30 min |
| December 19 | 56°F | 34°F | 34% | 23% | 9 h 30 min |
| December 20 | 56°F | 34°F | 34% | 23% | 9 h 30 min |
| December 21 | 56°F | 34°F | 34% | 23% | 9 h 30 min |
| December 22 | 56°F | 34°F | 34% | 23% | 9 h 30 min |
| December 23 | 56°F | 34°F | 34% | 23% | 9 h 30 min |
| December 24 | 56°F | 34°F | 34% | 23% | 9 h 30 min |
| December 25 | 55°F | 34°F | 34% | 23% | 9 h 30 min |
| December 26 | 55°F | 34°F | 34% | 23% | 9 h 30 min |
| December 27 | 55°F | 34°F | 34% | 23% | 9 h 30 min |
| December 28 | 55°F | 34°F | 34% | 23% | 9 h 30 min |
| December 29 | 55°F | 34°F | 34% | 24% | 9 h 30 min |
| December 30 | 55°F | 34°F | 34% | 24% | 9 h 30 min |
| December 31 | 55°F | 34°F | 35% | 24% | 9 h 30 min |
- Normal high
- 57°FDecember average
- Normal low
- 35°FDecember average
- Precipitation
- 3.81 inmonth total
- Days with precipitation
- 100.01 inch or more
- Nights at 32°F or colder
- 7
- Daylight
- 9 h 40 min to 9 h 30 minDecember 1 to December 31
- Sunshine
- 72%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00045378; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Martinez in December?
On a given December day the chance of 0.01 inch or more is 33% on average, highest around December 31 (35%). In all, 3.81 in falls on 10 days of a normal December, 1 of them with an inch or more.
In a normal December in Martinez, 7 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00045378.
What are the records for December in Martinez?
The warmest December temperature on this station's record (since 1970) is 74°F, on December 19, 1999; the coldest is 19°F, on December 22, 1990. The wettest December brought 10.85 in (2005).
Source: records: ACIS, station USC00045378. Records and recent months use complete months only.
How does December in Martinez 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; Martinez's is 57°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.