Tracy weather in December: Tracy, California: normal highs, lows, rain and records for December
Tracy in December has a normal high of 56°F and a normal low of 36°F, a daily mean of 46°F, falling from 60°F on the 1st to 55°F by the 31st. The month brings 2.32 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 13°C and low of 2°C, 59 mm of precipitation in December.
- NOAA stationTracy Carbona
- Station IDUSC00048999
- Location37.68°N 121.35°W
- Elevation135 ft (41 m)
- From the center7 miles
- Population100,136
- Jan 57° 36°
- Feb 62° 39°
- Mar 68° 42°
- Apr 73° 45°
- May 80° 50°
- Jun 88° 55°
- Jul 93° 57°
- Aug 92° 56°
- Sep 89° 54°
- Oct 79° 48°
- Nov 67° 41°
- Dec 56° 36°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Tracy in December?
The normal high is 56°F and the normal low 36°F, for a daily mean of 46.4°F. December is 7.3°F cooler than November and 0.4°F cooler than January. December is the 12th warmest month of the year in Tracy and the 3rd wettest. Across the month the normal high falls 5°F, from 60°F on December 1 to 55°F on December 31.
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 60°F | 38°F | – | – |
| December 8 | 57°F | 37°F | – | – |
| December 15 | 56°F | 36°F | – | – |
| December 22 | 55°F | 36°F | – | – |
| December 31 | 55°F | 36°F | – | – |
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 | 60°F | 38°F | – | – | 9 h 50 min |
| December 2 | 59°F | 38°F | – | – | 9 h 50 min |
| December 3 | 59°F | 37°F | – | – | 9 h 40 min |
| December 4 | 59°F | 37°F | – | – | 9 h 40 min |
| December 5 | 58°F | 37°F | – | – | 9 h 40 min |
| December 6 | 58°F | 37°F | – | – | 9 h 40 min |
| December 7 | 58°F | 37°F | – | – | 9 h 40 min |
| December 8 | 57°F | 37°F | – | – | 9 h 40 min |
| December 9 | 57°F | 37°F | – | – | 9 h 40 min |
| December 10 | 57°F | 37°F | – | – | 9 h 40 min |
| December 11 | 57°F | 37°F | – | – | 9 h 40 min |
| December 12 | 56°F | 37°F | – | – | 9 h 40 min |
| December 13 | 56°F | 36°F | – | – | 9 h 40 min |
| December 14 | 56°F | 36°F | – | – | 9 h 40 min |
| December 15 | 56°F | 36°F | – | – | 9 h 30 min |
| December 16 | 56°F | 36°F | – | – | 9 h 30 min |
| December 17 | 56°F | 36°F | – | – | 9 h 30 min |
| December 18 | 55°F | 36°F | – | – | 9 h 30 min |
| December 19 | 55°F | 36°F | – | – | 9 h 30 min |
| December 20 | 55°F | 36°F | – | – | 9 h 30 min |
| December 21 | 55°F | 36°F | – | – | 9 h 30 min |
| December 22 | 55°F | 36°F | – | – | 9 h 30 min |
| December 23 | 55°F | 36°F | – | – | 9 h 30 min |
| December 24 | 55°F | 36°F | – | – | 9 h 30 min |
| December 25 | 55°F | 36°F | – | – | 9 h 30 min |
| December 26 | 55°F | 36°F | – | – | 9 h 30 min |
| December 27 | 55°F | 36°F | – | – | 9 h 30 min |
| December 28 | 55°F | 36°F | – | – | 9 h 30 min |
| December 29 | 55°F | 36°F | – | – | 9 h 30 min |
| December 30 | 55°F | 36°F | – | – | 9 h 40 min |
| December 31 | 55°F | 36°F | – | – | 9 h 40 min |
- Normal high
- 56°FDecember average
- Normal low
- 36°FDecember average
- Precipitation
- 2.32 inmonth total
- Nights at 32°F or colder
- 11
- Daylight
- 9 h 50 min to 9 h 40 minDecember 1 to December 31
- Days at 70°F or more
- 1
- Sunshine
- 74%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00048999; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Tracy in December?
In a normal December in Tracy, 11 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00048999.
What are the records for December in Tracy?
The warmest December temperature on this station's record (since 1949) is 72°F, on December 1, 1977; the coldest is 17°F, on December 31, 1978. The wettest December brought 6.18 in (2014).
The December mean against the 1991-2020 normal of 46.4°F: 2025 44.7°F (−1.7). 0 of 1 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2025 | 44.7°F | −1.7°F | 1.17 in |
Source: records: ACIS, station USC00048999; recent months: ACIS, station USC00048999. Records and recent months use complete months only.
How does December in Tracy 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; Tracy's is 56°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.