Oroville weather in December: Oroville, California: normal highs, lows, rain and records for December
Oroville in December has a normal high of 55°F and a normal low of 40°F, a daily mean of 47°F, falling from 57°F on the 1st to 54°F by the 31st. Measurable precipitation falls on 12 days in a normal December, 4.63 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 13°C and low of 4°C, 118 mm of precipitation in December.
- NOAA stationOroville Municipal Airport
- Station IDUSW00093210
- Location39.49°N 121.62°W
- Elevation190 ft (58 m)
- Population19,712
- Jan 55° 40°
- Feb 61° 42°
- Mar 66° 45°
- Apr 72° 49°
- May 81° 55°
- Jun 90° 61°
- Jul 96° 65°
- Aug 94° 64°
- Sep 89° 59°
- Oct 78° 52°
- Nov 64° 44°
- Dec 55° 40°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Oroville in December?
The normal high is 55°F and the normal low 40°F, for a daily mean of 47.4°F. December is 6.5°F cooler than November and 0.0°F cooler than January. December is the 11th warmest month of the year in Oroville and the 3rd wettest. Across the month the normal high falls 3°F, from 57°F on December 1 to 54°F on December 31. From one year to the next December's mean temperature typically moves about 2.1°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 45°F and 50°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 39%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 57°F | 41°F | 37% | 22% |
| December 8 | 56°F | 40°F | 38% | 23% |
| December 15 | 55°F | 39°F | 39% | 24% |
| December 22 | 55°F | 39°F | 38% | 24% |
| December 31 | 54°F | 39°F | 38% | 23% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 26)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 57°F | 41°F | 37% | 22% | 9 h 40 min |
| December 2 | 57°F | 41°F | 37% | 22% | 9 h 40 min |
| December 3 | 57°F | 41°F | 37% | 22% | 9 h 30 min |
| December 4 | 57°F | 41°F | 38% | 23% | 9 h 30 min |
| December 5 | 56°F | 40°F | 38% | 23% | 9 h 30 min |
| December 6 | 56°F | 40°F | 38% | 23% | 9 h 30 min |
| December 7 | 56°F | 40°F | 38% | 23% | 9 h 30 min |
| December 8 | 56°F | 40°F | 38% | 23% | 9 h 30 min |
| December 9 | 56°F | 40°F | 38% | 24% | 9 h 30 min |
| December 10 | 56°F | 40°F | 38% | 24% | 9 h 30 min |
| December 11 | 55°F | 40°F | 38% | 24% | 9 h 30 min |
| December 12 | 55°F | 40°F | 38% | 24% | 9 h 30 min |
| December 13 | 55°F | 40°F | 39% | 24% | 9 h 30 min |
| December 14 | 55°F | 40°F | 39% | 24% | 9 h 20 min |
| December 15 | 55°F | 39°F | 39% | 24% | 9 h 20 min |
| December 16 | 55°F | 39°F | 39% | 24% | 9 h 20 min |
| December 17 | 55°F | 39°F | 39% | 24% | 9 h 20 min |
| December 18 | 55°F | 39°F | 39% | 24% | 9 h 20 min |
| December 19 | 55°F | 39°F | 39% | 24% | 9 h 20 min |
| December 20 | 55°F | 39°F | 38% | 24% | 9 h 20 min |
| December 21 | 55°F | 39°F | 38% | 24% | 9 h 20 min |
| December 22 | 55°F | 39°F | 38% | 24% | 9 h 20 min |
| December 23 | 55°F | 39°F | 38% | 24% | 9 h 20 min |
| December 24 | 54°F | 39°F | 38% | 24% | 9 h 20 min |
| December 25 | 54°F | 39°F | 38% | 24% | 9 h 20 min |
| December 26 | 54°F | 39°F | 38% | 24% | 9 h 20 min |
| December 27 | 54°F | 39°F | 38% | 23% | 9 h 20 min |
| December 28 | 54°F | 39°F | 38% | 23% | 9 h 20 min |
| December 29 | 54°F | 39°F | 38% | 23% | 9 h 20 min |
| December 30 | 54°F | 39°F | 38% | 23% | 9 h 20 min |
| December 31 | 54°F | 39°F | 38% | 23% | 9 h 30 min |
- Normal high
- 55°FDecember average
- Normal low
- 40°FDecember average
- Precipitation
- 4.63 inmonth total
- Days with precipitation
- 120.01 inch or more
- Nights at 32°F or colder
- 4
- Daylight
- 9 h 40 min to 9 h 30 minDecember 1 to December 31
- Days at 70°F or more
- 1
- Sunshine
- 69%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00093210; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Oroville in December?
On a given December day the chance of 0.01 inch or more is 38% on average, highest around December 14 (39%). In all, 4.63 in falls on 12 days of a normal December, 1 of them with an inch or more.
In a normal December in Oroville, 4 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00093210.
What are the records for December in Oroville?
The warmest December temperature on this station's record (since 1998) is 79°F, on December 7, 2020; the coldest is 22°F, on December 9, 2009. The wettest December brought 10.28 in (2002).
The December mean against the 1991-2020 normal of 47.4°F: 2021 46.9°F (−0.5), 2022 46.9°F (−0.5), 2023 51.9°F (+4.5), 2024 51.1°F (+3.7), 2025 47.0°F (−0.4). 2 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 46.9°F | −0.5°F | 5.87 in |
| 2022 | 46.9°F | −0.5°F | 6.36 in |
| 2023 | 51.9°F | +4.5°F | 3.72 in |
| 2024 | 51.1°F | +3.7°F | 4.65 in |
| 2025 | 47.0°F | −0.4°F | 5.69 in |
Source: records: ACIS, station USW00093210; recent months: ACIS, station USW00093210. Records and recent months use complete months only.
How does December in Oroville 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; Oroville's is 55°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.