Red Bluff weather in December: Red Bluff, California: normal highs, lows, rain and records for December
Red Bluff in December has a normal high of 56°F and a normal low of 38°F, a daily mean of 47°F, falling from 58°F on the 1st to 55°F by the 31st. Measurable precipitation falls on 11 days in a normal December, 4.23 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 13°C and low of 3°C, 107 mm of precipitation in December.
- NOAA stationRed Bluff Municipal Airport
- Station IDUSW00024216
- Location40.15°N 122.25°W
- Elevation353 ft (108 m)
- Population14,286
- Jan 57° 38°
- Feb 61° 41°
- Mar 66° 44°
- Apr 72° 47°
- May 82° 55°
- Jun 91° 62°
- Jul 98° 66°
- Aug 96° 64°
- Sep 91° 59°
- Oct 79° 51°
- Nov 64° 43°
- Dec 56° 38°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Red Bluff in December?
The normal high is 56°F and the normal low 38°F, for a daily mean of 46.8°F. December is 6.6°F cooler than November and 0.6°F cooler than January. December is the 12th warmest month of the year in Red Bluff and the 2nd wettest. Across the month the normal high falls 3°F, from 58°F on December 1 to 55°F on December 31. From one year to the next December's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 45°F and 49°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 | 58°F | 39°F | 31% | 22% |
| December 8 | 56°F | 38°F | 33% | 23% |
| December 15 | 55°F | 38°F | 34% | 24% |
| December 22 | 55°F | 37°F | 35% | 24% |
| December 31 | 55°F | 37°F | 35% | 24% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 22)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 58°F | 39°F | 31% | 22% | 9 h 30 min |
| December 2 | 58°F | 39°F | 31% | 22% | 9 h 30 min |
| December 3 | 58°F | 39°F | 32% | 22% | 9 h 30 min |
| December 4 | 57°F | 39°F | 32% | 22% | 9 h 30 min |
| December 5 | 57°F | 39°F | 32% | 23% | 9 h 30 min |
| December 6 | 57°F | 39°F | 33% | 23% | 9 h 30 min |
| December 7 | 57°F | 38°F | 33% | 23% | 9 h 30 min |
| December 8 | 56°F | 38°F | 33% | 23% | 9 h 30 min |
| December 9 | 56°F | 38°F | 33% | 23% | 9 h 20 min |
| December 10 | 56°F | 38°F | 34% | 23% | 9 h 20 min |
| December 11 | 56°F | 38°F | 34% | 24% | 9 h 20 min |
| December 12 | 56°F | 38°F | 34% | 24% | 9 h 20 min |
| December 13 | 56°F | 38°F | 34% | 24% | 9 h 20 min |
| December 14 | 55°F | 38°F | 34% | 24% | 9 h 20 min |
| December 15 | 55°F | 38°F | 34% | 24% | 9 h 20 min |
| December 16 | 55°F | 38°F | 35% | 24% | 9 h 20 min |
| December 17 | 55°F | 38°F | 35% | 24% | 9 h 20 min |
| December 18 | 55°F | 37°F | 35% | 24% | 9 h 20 min |
| December 19 | 55°F | 37°F | 35% | 24% | 9 h 20 min |
| December 20 | 55°F | 37°F | 35% | 24% | 9 h 20 min |
| December 21 | 55°F | 37°F | 35% | 24% | 9 h 20 min |
| December 22 | 55°F | 37°F | 35% | 24% | 9 h 20 min |
| December 23 | 55°F | 37°F | 35% | 24% | 9 h 20 min |
| December 24 | 55°F | 37°F | 35% | 24% | 9 h 20 min |
| December 25 | 55°F | 37°F | 35% | 24% | 9 h 20 min |
| December 26 | 55°F | 37°F | 35% | 24% | 9 h 20 min |
| December 27 | 55°F | 37°F | 35% | 24% | 9 h 20 min |
| December 28 | 55°F | 37°F | 35% | 24% | 9 h 20 min |
| December 29 | 55°F | 37°F | 35% | 24% | 9 h 20 min |
| December 30 | 55°F | 37°F | 35% | 24% | 9 h 20 min |
| December 31 | 55°F | 37°F | 35% | 24% | 9 h 20 min |
- Normal high
- 56°FDecember average
- Normal low
- 38°FDecember average
- Precipitation
- 4.23 inmonth total
- Days with precipitation
- 110.01 inch or more
- Nights at 32°F or colder
- 7
- Daylight
- 9 h 30 min to 9 h 20 minDecember 1 to December 31
- Days at 70°F or more
- 1
- Sunshine
- 66%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024216; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Red Bluff in December?
On a given December day the chance of 0.01 inch or more is 34% on average, highest around December 18 (35%). In all, 4.23 in falls on 11 days of a normal December, 1 of them with an inch or more.
In a normal December in Red Bluff, 7 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024216.
How humid and windy is Red Bluff in December?
At 3 p.m. the normal temperature is 54°F with 52% relative humidity and a dew point of 36°F; at 6 a.m. it is 39°F with 83% humidity. The wind averages 7.3 mph, most often from the east in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 39°F | 35°F | 83% | 7.0 mph | 63% |
| 9 a.m. | 42°F | 36°F | 79% | 7.2 mph | 60% |
| noon | 51°F | 37°F | 59% | 8.7 mph | 60% |
| 3 p.m. | 54°F | 36°F | 52% | 8.0 mph | 62% |
| 6 p.m. | 47°F | 37°F | 68% | 6.5 mph | 62% |
| 9 p.m. | 43°F | 36°F | 77% | 6.6 mph | 64% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024216. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for December in Red Bluff?
The warmest December temperature on this station's record (since 1933) is 83°F, on December 15, 1980; the coldest is 13°F, on December 23, 1990. The wettest December brought 10.77 in (1940); the snowiest, 10.7 inches (1972).
The December mean against the 1991-2020 normal of 46.8°F: 2021 45.6°F (−1.1), 2022 45.8°F (−1.0), 2023 50.9°F (+4.1), 2024 49.3°F (+2.5), 2025 47.4°F (+0.6). 3 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 45.6°F | −1.1°F | 4.99 in |
| 2022 | 45.8°F | −1.0°F | 5.69 in |
| 2023 | 50.9°F | +4.1°F | 4.69 in |
| 2024 | 49.3°F | +2.5°F | 6.80 in |
| 2025 | 47.4°F | +0.6°F | 5.11 in |
Source: records: ACIS, station USW00024216; recent months: ACIS, station USW00024216. Records and recent months use complete months only.
How does December in Red Bluff 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; Red Bluff's is 56°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Red Bluff in November64°F by day, 43°F at night
- Red Bluff in January57°F by day, 38°F at night
- Red Bluff through the yearEvery month, frost dates, records and recent years
- California in DecemberThe statewide normal and the warmest and coolest places
- Anaheim: California's warmest Decembernormal high 71°F