Lompoc weather in December: Lompoc, California: normal highs, lows, rain and records for December
Lompoc in December has a normal high of 63°F and a normal low of 42°F, a daily mean of 53°F, falling from 65°F on the 1st to 63°F by the 31st. Measurable precipitation falls on 8 days in a normal December, 2.40 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 17°C and low of 6°C, 61 mm of precipitation in December.
- NOAA stationLompoc
- Station IDUSC00045064
- Location34.65°N 120.45°W
- Elevation75 ft (23 m)
- Population43,594
- Jan 65° 43°
- Feb 65° 44°
- Mar 67° 46°
- Apr 68° 47°
- May 69° 51°
- Jun 71° 53°
- Jul 73° 56°
- Aug 73° 56°
- Sep 75° 55°
- Oct 74° 51°
- Nov 70° 46°
- Dec 63° 42°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Lompoc in December?
The normal high is 63°F and the normal low 42°F, for a daily mean of 52.7°F. December is 5.1°F cooler than November and 1.3°F cooler than January. December is the 12th warmest month of the year in Lompoc and the 4th wettest. Across the month the normal high falls 2°F, from 65°F on December 1 to 63°F on December 31. From one year to the next December's mean temperature typically moves about 1.9°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 51°F and 55°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 26%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 65°F | 43°F | 21% | 13% |
| December 8 | 64°F | 42°F | 23% | 14% |
| December 15 | 63°F | 42°F | 25% | 15% |
| December 22 | 63°F | 42°F | 25% | 16% |
| December 31 | 63°F | 42°F | 26% | 17% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 17)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 65°F | 43°F | 21% | 13% | 10 h |
| December 2 | 65°F | 43°F | 22% | 13% | 10 h |
| December 3 | 65°F | 43°F | 22% | 13% | 10 h |
| December 4 | 65°F | 43°F | 22% | 13% | 10 h |
| December 5 | 64°F | 43°F | 22% | 13% | 10 h |
| December 6 | 64°F | 42°F | 23% | 14% | 10 h |
| December 7 | 64°F | 42°F | 23% | 14% | 10 h |
| December 8 | 64°F | 42°F | 23% | 14% | 10 h |
| December 9 | 64°F | 42°F | 23% | 14% | 9 h 50 min |
| December 10 | 63°F | 42°F | 24% | 14% | 9 h 50 min |
| December 11 | 63°F | 42°F | 24% | 14% | 9 h 50 min |
| December 12 | 63°F | 42°F | 24% | 15% | 9 h 50 min |
| December 13 | 63°F | 42°F | 24% | 15% | 9 h 50 min |
| December 14 | 63°F | 42°F | 25% | 15% | 9 h 50 min |
| December 15 | 63°F | 42°F | 25% | 15% | 9 h 50 min |
| December 16 | 63°F | 42°F | 25% | 15% | 9 h 50 min |
| December 17 | 63°F | 42°F | 25% | 15% | 9 h 50 min |
| December 18 | 63°F | 42°F | 25% | 16% | 9 h 50 min |
| December 19 | 63°F | 42°F | 25% | 16% | 9 h 50 min |
| December 20 | 63°F | 42°F | 25% | 16% | 9 h 50 min |
| December 21 | 63°F | 42°F | 25% | 16% | 9 h 50 min |
| December 22 | 63°F | 42°F | 25% | 16% | 9 h 50 min |
| December 23 | 63°F | 42°F | 25% | 16% | 9 h 50 min |
| December 24 | 63°F | 42°F | 25% | 16% | 9 h 50 min |
| December 25 | 63°F | 42°F | 25% | 16% | 9 h 50 min |
| December 26 | 63°F | 42°F | 26% | 16% | 9 h 50 min |
| December 27 | 63°F | 42°F | 26% | 17% | 9 h 50 min |
| December 28 | 63°F | 42°F | 26% | 17% | 9 h 50 min |
| December 29 | 63°F | 42°F | 26% | 17% | 9 h 50 min |
| December 30 | 63°F | 42°F | 26% | 17% | 9 h 50 min |
| December 31 | 63°F | 42°F | 26% | 17% | 9 h 50 min |
- Normal high
- 63°FDecember average
- Normal low
- 42°FDecember average
- Precipitation
- 2.40 inmonth total
- Days with precipitation
- 80.01 inch or more
- Nights at 32°F or colder
- 2
- Daylight
- 10 h to 9 h 50 minDecember 1 to December 31
- Days at 70°F or more
- 6
- Sunshine
- 82%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00045064; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Lompoc in December?
On a given December day the chance of 0.01 inch or more is 24% on average, highest around December 30 (26%). In all, 2.40 in falls on 8 days of a normal December, 1 of them with an inch or more.
In a normal December in Lompoc, 2 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00045064.
What are the records for December in Lompoc?
The warmest December temperature on this station's record (since 1917) is 90°F, on December 3, 1958; the coldest is 20°F, on December 22, 1990. The wettest December brought 8.88 in (2010).
The December mean against the 1991-2020 normal of 52.7°F: 2021 50.6°F (−2.1), 2022 51.9°F (−0.8), 2023 56.4°F (+3.7), 2024 53.6°F (+0.9), 2025 58.5°F (+5.8). 3 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 50.6°F | −2.1°F | 6.10 in |
| 2022 | 51.9°F | −0.8°F | 5.11 in |
| 2023 | 56.4°F | +3.7°F | 4.34 in |
| 2024 | 53.6°F | +0.9°F | 0.60 in |
| 2025 | 58.5°F | +5.8°F | 3.92 in |
Source: records: ACIS, station USC00045064; recent months: ACIS, station USC00045064. Records and recent months use complete months only.
How does December in Lompoc 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; Lompoc's is 63°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.