December is one of the cooler months of the year in Victorville, with average highs near 13.7°C and lows around 1.7°C (mean 7.7°C). It is a relatively wet time of year, averaging 45 mm of rainfall and 56% relative humidity across the period.
December is one of the cooler months of the year in Victorville. Across 45 years of records, the warmest December in Victorville was 2025 — when the month averaged 12.5°C — while the coldest was 1990 at 4.4°C. Typical December days reach 13.7°C with nights near 1.7°C. The long-term trend is warming, about 0.7°C per decade.
December is a relatively wet time of year in Victorville, averaging 45 mm of rainfall. The wettest December on record was 2010 with 234 mm, while the driest was 2017 at 0 mm.
Relative humidity in Victorville during December averages 56%. The most humid December was 1984 at 72%, and the least humid was 2017 at 24%.
December receives about 2.9 kWh/m²/day of solar energy in Victorville. The sunniest December was 2017 at 3.3 kWh/m²/day, and the cloudiest were 1984 and 2019 at 2.5.
Average wind speed in Victorville during December is 2 m/s. The windiest December was 1996 at 2.5 m/s, while the calmest were 1986 and 2023 at 1.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 6.9°C | 6.9°C | 7.4°C | 8.2°C | 10.1°C | +3.2°C |
| Avg High | 12.9°C | 13.0°C | 13.4°C | 14.1°C | 16.2°C | +3.3°C |
| Avg Low | 0.9°C | 0.7°C | 1.4°C | 2.2°C | 4.0°C | +3.1°C |
| Avg Rain | 44 mm | 37 mm | 36 mm | 58 mm | 52 mm | +8 mm |
December temperatures in Victorville have risen by about 3.2°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -10.1°C (1990) to a record high of 25.4°C (2008).
Rainfall in December is a relatively wet time of year, averaging 45 mm, with a wettest year of 234 mm.
A quieter season to visit Victorville
If your dates are flexible, the more temperate months of June and September tend to be the most comfortable for visiting Victorville. That said, December — with days averaging 13.7°C and nights around 1.7°C (mean 7.7°C) and moderate rainfall (45 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🔥 | 18.6°C | 12.5°C | 6.4°C | 24.6°C | -0.1°C | 90 mm | 55% | 1.8 m/s | — |
| 2024 | 19.1°C | 12.2°C | 5.2°C | 23.7°C | -0.3°C | 0 mm | 41% | 1.7 m/s | 3 |
| 2023 | 16.9°C | 10.7°C | 4.6°C | 22.6°C | 0.6°C | 28 mm | 54% | 1.5 m/s | 2.8 |
| 2022 | 13.4°C | 8.0°C | 2.6°C | 22.8°C | -2.9°C | 52 mm | 67% | 1.8 m/s | 2.7 |
| 2021 | 13.8°C | 8.3°C | 2.7°C | 24.3°C | -2.6°C | 118 mm | 62% | 2.1 m/s | 2.8 |
| 2020 | 15.4°C | 8.9°C | 2.4°C | 21.8°C | -1.3°C | 21 mm | 39% | 2.1 m/s | 3 |
| 2019 | 12.4°C | 7.4°C | 2.4°C | 21.6°C | -3.9°C | 80 mm | 67% | 1.9 m/s | 2.5 |
| 2018 | 14.5°C | 8.5°C | 2.5°C | 20.3°C | -3.2°C | 37 mm | 57% | 1.8 m/s | 3 |
| 2017 | 18.4°C | 11.3°C | 4.2°C | 24.7°C | -2.6°C | 0 mm | 24% | 2 m/s | 3.3 |
| 2016 | 13.6°C | 7.8°C | 1.9°C | 21.3°C | -3.7°C | 87 mm | 60% | 2.2 m/s | 2.9 |
| 2015 | 13.4°C | 7.1°C | 0.7°C | 24.4°C | -4.2°C | 16 mm | 52% | 2.2 m/s | 3.1 |
| 2014 | 14.2°C | 9.0°C | 3.8°C | 22.8°C | -4.2°C | 72 mm | 67% | 1.6 m/s | 2.7 |
| 2013 | 14.4°C | 7.7°C | 0.9°C | 21.9°C | -5.2°C | 6 mm | 45% | 1.9 m/s | 3.2 |
| 2012 | 13.0°C | 7.4°C | 1.8°C | 21.8°C | -4.3°C | 35 mm | 65% | 2 m/s | 2.9 |
| 2011 | 13.2°C | 6.9°C | 0.6°C | 22.4°C | -3.2°C | 10 mm | 43% | 1.9 m/s | 3.2 |
| 2010 🌧️ | 14.1°C | 8.7°C | 3.3°C | 22.9°C | -4.4°C | 234 mm | 69% | 2 m/s | 2.6 |
| 2009 | 11.9°C | 6.3°C | 0.6°C | 18.3°C | -5.7°C | 59 mm | 59% | 2 m/s | 2.9 |
| 2008 | 12.1°C | 6.3°C | 0.4°C | 25.4°C | -6.4°C | 61 mm | 63% | 2 m/s | 2.8 |
| 2007 | 11.6°C | 5.9°C | 0.3°C | 23.6°C | -3.8°C | 23 mm | 59% | 2.2 m/s | 3.1 |
| 2006 | 14.4°C | 7.8°C | 1.1°C | 21.9°C | -3.8°C | 12 mm | 45% | 2.1 m/s | 3.2 |
| 2005 | 15.1°C | 9.0°C | 2.8°C | 23.3°C | -2.2°C | 7 mm | 56% | 1.9 m/s | 2.8 |
| 2004 | 13.5°C | 7.8°C | 2.2°C | 23.1°C | -3.3°C | 78 mm | 62% | 2.2 m/s | 3 |
| 2003 | 13.5°C | 7.4°C | 1.3°C | 21.2°C | -4.9°C | 27 mm | 59% | 1.9 m/s | 2.8 |
| 2002 | 12.7°C | 7.1°C | 1.6°C | 18.1°C | -3.3°C | 67 mm | 66% | 1.8 m/s | 3 |
| 2001 | 12.6°C | 6.7°C | 0.8°C | 19.1°C | -3.3°C | 20 mm | 60% | 1.8 m/s | 2.9 |
| 2000 | 16.7°C | 10.0°C | 3.3°C | 21.9°C | -0.8°C | 1 mm | 42% | 1.8 m/s | 3 |
| 1999 | 14.7°C | 8.1°C | 1.4°C | 19.6°C | -1.6°C | 8 mm | 39% | 2.2 m/s | 3.2 |
| 1998 | 13.6°C | 7.1°C | 0.6°C | 21.4°C | -5.5°C | 10 mm | 46% | 2.3 m/s | 3.2 |
| 1997 | 11.4°C | 5.8°C | 0.2°C | 21.1°C | -4.0°C | 56 mm | 54% | 2.3 m/s | 3.1 |
| 1996 | 13.7°C | 8.1°C | 2.5°C | 21.0°C | -2.4°C | 67 mm | 64% | 2.5 m/s | 2.7 |
| 1995 | 15.9°C | 9.2°C | 2.6°C | 22.7°C | -2.9°C | 21 mm | 57% | 1.9 m/s | 2.8 |
| 1994 | 13.0°C | 7.0°C | 0.9°C | 19.7°C | -3.7°C | 29 mm | 62% | 1.7 m/s | 2.8 |
| 1993 | 13.5°C | 6.8°C | 0.1°C | 20.8°C | -3.5°C | 18 mm | 51% | 1.9 m/s | 3.1 |
| 1992 | 10.2°C | 4.9°C | -0.4°C | 16.3°C | -4.6°C | 109 mm | 66% | 2.3 m/s | 2.9 |
| 1991 | 13.1°C | 7.3°C | 1.4°C | 19.2°C | -3.1°C | 50 mm | 55% | 2.1 m/s | 3 |
| 1990 ❄️ | 10.7°C | 4.4°C | -2.0°C | 20.4°C | -10.1°C | 3 mm | 42% | 2.2 m/s | 2.9 |
| 1989 | 15.6°C | 8.5°C | 1.4°C | 24.0°C | -3.5°C | 2 mm | 35% | 1.9 m/s | 3.1 |
| 1988 | 11.7°C | 5.9°C | 0.0°C | 21.3°C | -5.4°C | 67 mm | 58% | 2.3 m/s | 2.6 |
| 1987 | 9.6°C | 4.5°C | -0.5°C | 21.7°C | -6.5°C | 47 mm | 65% | 2.2 m/s | 2.6 |
| 1986 | 14.2°C | 7.8°C | 1.3°C | 21.5°C | -3.3°C | 23 mm | 53% | 1.5 m/s | 2.7 |
| 1985 | 13.5°C | 7.4°C | 1.3°C | 19.6°C | -5.0°C | 15 mm | 58% | 1.8 m/s | 3 |
| 1984 | 10.6°C | 5.1°C | -0.4°C | 15.1°C | -4.7°C | 131 mm | 72% | 2.1 m/s | 2.5 |
| 1983 | 12.9°C | 7.3°C | 1.6°C | 19.5°C | -3.5°C | 59 mm | 71% | 2.2 m/s | — |
| 1982 | 12.0°C | 6.3°C | 0.6°C | 19.2°C | -4.2°C | 45 mm | 61% | 2.4 m/s | — |
| 1981 | 16.2°C | 9.6°C | 3.0°C | 21.0°C | -3.0°C | 8 mm | 57% | 1.9 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 13.7°C with lows near 1.7°C (mean 7.7°C), based on 45 years of NASA POWER data.
December averages 45 mm of rainfall in Victorville, a relatively wet time of year. The wettest on record was 234 mm in 2010.
The hottest December reached 25.4°C in 2008. The coldest dipped to -10.1°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 3.2°C. Daytime highs moved from 13°C to 16.4°C and overnight lows from 1.2°C to 4.3°C over the same span.
December is one of the cooler months of the year in Victorville and a relatively wet time of year, so plan for around 13.7°C daytime highs and 1.7°C at night.
Yes — December is the coldest month of the year in Victorville, averaging 7.7°C.
For December in Victorville, pack warm layers and a jacket for chilly mornings, with typical highs of 13.7°C and lows of 1.7°C.
Relative humidity in December averages 56% — moderately humid.
Average wind speed in December is 2 m/s. The windiest December on record averaged 2.5 m/s (1996).
The wettest December on record was 2010 with 234 mm. On average, December sees 45 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Victorville behaves each December, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for December specifically, along with year-by-year records and how the month has changed over the decades.
