December Weather in Las Vegas, United States

Last updated: February 24, 2025

December in Las Vegas ushers in a cooler climate, with maximum temperatures reaching a pleasant 23°C (73°F) and average lows dipping to around 7°C (45°F). Visitors can expect some brisk days, with occasional drops to a chilly -3°C (27°F) at night. Though the month is relatively dry, recording only 18 mm (0.7 in) of precipitation over a mere four days, a humidity level of 78% can make the air feel cooler than the actual temperature. Whether you're exploring the vibrant Strip or enjoying outdoor activities, December's mild sun and crisp air offer a refreshing escape from winter's chill.

December Temperature in Las Vegas

In Las Vegas, December presents a noticeable chill as the temperatures begin to dip, with minimums around -3°C (27°F) and an average hovering at 7°C (45°F). Despite the cooler weather, daytime highs can still reach up to 23°C (73°F), offering a stark contrast to the frigid nights. As the year draws to a close, this month reflects a gradual decline in temperatures from the milder conditions of November, marking the onset of winter. Visitors can enjoy the festive atmosphere with the comfort of sunny days, while evenings invite cozy gatherings, showcasing Las Vegas in all its dazzling holiday charm.

December Weather in Las Vegas: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Las Vegas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec454855657284898880655545
Data source: Temperature data for Las Vegas generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Las Vegas

In Las Vegas, December marks a notable transition in precipitation patterns, as the city experiences an average of 18 mm (0.7 in) of rainfall over 4 days—a slight uptick compared to the drier months of June and October. This increase in precipitation hints at the arrival of winter, leading to wetter conditions that often characterize the end of the year. When compared to the summer months, where rainfall is scarce and often totals around 1 mm, December’s precipitation provides a refreshing contrast. Despite the overall aridity of the region, the end of the year showcases the potential for brief yet impactful rainy spells, adding a touch of seasonal change to the typically sun-drenched landscape of the Nevada desert.

December Precipitation Trends in Las Vegas

The chart displays monthly precipitation patterns in Las Vegas, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec22252161011610431319
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Las Vegas

In December, Las Vegas experiences a noticeable rise in humidity, with levels reaching 78%. This increase follows a gradual fluctuation throughout the year, starting from a low of 29% in August. As winter approaches, the humidity escalates, peaking in the earlier months of the year, with January and February exhibiting the highest levels at 81% and 84%, respectively. Conversely, the summer months are characterized by notably lower humidity, with July and August being the driest. This trend indicates that while Las Vegas is known for its arid climate, the winter months bring a refreshing increase in moisture, offering a brief respite from the typically scorching desert conditions.

December Average Humidity in Las Vegas

This chart illustrates the average monthly humidity levels in Las Vegas, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec81%84%76%64%48%40%33%29%43%61%76%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Las Vegas

As December unfolds in Las Vegas, the UV Index drops to a moderate level of 3, indicating a reduced need for sun protection compared to the previous months. This month experiences a more relaxed burn time of 30 minutes, allowing residents and visitors to enjoy the crisp winter sun without the intense fear of overexposure. The gradual decline in UV levels from November's 5 and the dramatic peaks seen earlier in the year, such as the extreme levels from May to July, highlight the seasonal variations in solar radiation. With winter's arrival, the focus shifts from high vigilance to moderate caution, making December a pleasant time for outdoor activities. For a detailed overview of the UV Index throughout the year, check out Las Vegas UV Index.

Maximum UV Index Levels in Las Vegas for December

The chart shows the monthly maximum UV Index (UVI) for Las Vegas in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec468101112131110753
Data source: Las Vegas December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Las Vegas

In Las Vegas, December brings a delightful shift as the city enjoys about 229 hours of sunshine, wrapping up the year with a warm glow. While this marks a dip from the sun-drenched days of summer—July boasting a peak of 381 hours—the festive atmosphere continues to thrive under a relatively mild winter sun. Comparatively, the sunshine in December is notably more than the early months of the year, such as January with only 186 hours. Overall, the trend highlights Las Vegas as a sunny oasis, where the brightness never truly fades, keeping spirits high even as the year draws to a close.

Monthly Sunshine Duration in Las Vegas: December Highlighted

The December sunshine duration represents the total number of hours Las Vegas experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec186h239h291h326h368h380h381h363h324h294h256h229h
Data source: Las Vegas December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Las Vegas During December

In December, Las Vegas experiences a 57% chance of sunny weather, which is part of a noticeable trend throughout the year. As the seasons change, the likelihood of sunshine initially dips in January and July, both at around 56% and 55% respectively, while February and September boast the highest probabilities at 75% and 88%. As we transition from autumn to winter, November maintains a commendable 75%, leading into December's moderate chance of sun. Despite being one of the cooler months, December's weather remains relatively bright compared to the early winter gloom found elsewhere, making it a compelling time to enjoy the city’s attractions under blue skies.

Percentage of Sunny Days in December in Las Vegas

The chart illustrates the percentage of sunny days in Las Vegas throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Las Vegas experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec56%75%67%75%83%70%55%83%88%70%75%57%
Data source: Las Vegas December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Las Vegas in December

As December unfolds in Las Vegas, the city basks in approximately 9 hours of daylight, marking the shortest days of the year. This decline in daylight begins in November, where the duration dips to 10 hours, and continues its downward trend through December. Interestingly, the year witnesses a gradual increase in sunlight from the winter months of January and February, both featuring 10 hours of daylight, and peaks in the vibrant spring and summer months, especially in June and July, where daylight reaches a generous 14 hours. As fall arrives, daylight diminishes steadily, returning to 10 hours by November before concluding the calendar year with December's shorter days. This cyclical pattern highlights the remarkable transition from winter's brevity to the generous sunlight of summer, showcasing the dynamic climate of Las Vegas.

Average Daylight Hours in Las Vegas for December

The chart illustrates the variation in daylight duration in Las Vegas throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h10h 52m11h 59m13h 8m14h 5m14h 33m14h 18m13h 27m12h 21m11h 12m10h 13m9h 43m
Data source: Las Vegas daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Las Vegas

As December rolls in, Las Vegas experiences a subtle shift in its wind patterns, with average speeds dipping to 2.3 m/s (5 mph), mirroring the tranquil breezes of November. Throughout the year, the city enjoys a relatively gentle wind climate, peaking in the vibrant spring months of April and May, where the winds pick up to 2.9 m/s (7 mph), bringing a refreshing touch to the increasingly warm days. However, as summer fades and the holiday season approaches, the wind slows down, creating a calm atmosphere perfect for enjoying festive activities. This consistent yet mild wind pattern not only enhances the city's charm but also offers a pleasant backdrop to the dazzling lights and lively entertainment that Las Vegas is renowned for.

Average December Wind Speed in Las Vegas

The chart displays monthly wind speed patterns in Las Vegas, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.42.72.82.92.92.82.22.72.62.52.32.3 m/s
Data source: Las Vegas December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Las Vegas Compares to Other Months

The weather in Las Vegas changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Las Vegas and find detailed weather information for every month.

December and January share similar average temperatures, with December ranging from a minimum of -3°C (27°F) to a maximum of 23°C (73°F), while January experiences slightly cooler minimum temperatures of -5°C (24°F) and a maximum of 20°C (68°F). Both months see an average temperature of around 7°C (45°F for December and 46°F for January). Precipitation is slightly higher in January, with 22 mm (0.8 in) over 3 days compared to December's 18 mm (0.7 in) across 4 days. Humidity also increases in January, reaching 81%, compared to December's 78%. For more detailed information on January weather, you can check Las Vegas weather in January.

In December, the weather experiences a range of temperatures with a minimum of -3°C (27°F) and an average of 7°C (45°F), peaking at a maximum of 23°C (73°F). The month sees about 18 mm (0.7 in) of precipitation over roughly 4 days, and the humidity levels are around 78%. In contrast, February's weather is slightly cooler, with a minimum of -5°C (23°F) and an average of 9°C (48°F), while still reaching a high of 24°C (75°F). February has increased precipitation of 25 mm (1.0 in) over the same number of days, along with a higher humidity level at 84%. For more information on what to expect, check out Las Vegas weather in February.

December and March exhibit notable differences in weather patterns. December experiences cooler temperatures, with a minimum of -3°C (27°F) and an average of 7°C (45°F), while March sees a rise in warmth, boasting a minimum of -1°C (31°F) and an average of 13°C (55°F). The maximum temperatures in December reach up to 23°C (73°F), compared to a more temperate 30°C (87°F) in March. Precipitation levels are fairly similar, with December receiving 18 mm (0.7 in) and March slightly higher at 21 mm (0.8 in), but both months share the same number of rainy days at four. Humidity levels also remain relatively close, with December at 78% and March at 76%. For a detailed look at March weather specifically, visit Las Vegas weather in March.

December weather presents a cooler and more variable climate, with temperatures ranging from a chilly -3°C (27°F) to a warm 23°C (73°F) and an average of 7°C (45°F). The month sees more precipitation, totaling 18 mm (0.7 in) over about four days, along with a higher humidity level of 78%. In contrast, April brings significantly milder and more stable conditions, with temperatures ranging from 2°C (36°F) at night to a maximum of 34°C (94°F) during the day and an average temperature of 18°C (65°F). It experiences less rain, accumulating just 6 mm (0.2 in) over two days, and lower humidity at 64%. For more detailed insights, you can visit Las Vegas weather in April.

In December, the weather is notably cooler, with temperatures ranging from a chilly -3°C (27°F) to a mild 23°C (73°F), accompanied by relatively high humidity at 78%. Precipitation is also more frequent, averaging about 18 mm over 4 days. In stark contrast, May brings much warmer temperatures, with a minimum of 7°C (45°F) and a scorching maximum of 39°C (102°F). The average temperature reaches a comfortable 22°C (72°F), with significantly less precipitation at only 10 mm over just 2 days and lower humidity at 48%. For more details about the weather in May, you can check Las Vegas weather in May.

December and June present a striking contrast in weather. December experiences cooler temperatures, ranging from a minimum of -3°C (27°F) to a maximum of 23°C (73°F), with an average of 7°C (45°F). This month also sees higher humidity levels at 78% and a light amount of precipitation, occurring over four days. In contrast, June is characterized by much warmer conditions, with temperatures ranging from a minimum of 12°C (54°F) to a scorching maximum of 43°C (110°F), averaging 29°C (85°F). Notably, June experiences significantly less precipitation, with just 1 mm recorded over the month and no rainy days, alongside a much lower humidity of 40%. For a closer look at June's weather specifics, you can check Las Vegas weather in June.

The weather in December contrasts sharply with that of July. In December, temperatures range from a chilly -3°C (27°F) to a mild 23°C (73°F), with an average of 7°C (45°F) and relatively high humidity at 78%. Precipitation is modest, occurring on about four days with a total of 18 mm (0.7 in). In contrast, July boasts much warmer conditions, with minimum temperatures at 18°C (64°F) and maximums soaring to 44°C (111°F), averaging 32°C (89°F). The humidity drops significantly to 33%, and while July sees only slightly less precipitation than December at 16 mm (0.6 in) across the same four days, the overall feel is distinctly dry and hot. For more details on the weather during this month, visit Las Vegas weather in July.

December weather presents a stark contrast to August, characterized by cooler temperatures and increased humidity. While December experiences temperatures ranging from a chilly -3°C (27°F) at night to a mild 23°C (73°F) at its warmest, August boasts much higher temperatures, with nightly lows around 20°C (67°F) and peak highs soaring up to 42°C (109°F). Precipitation in December is relatively modest, with 18 mm (0.7 in) falling over four days, compared to August's lower 10 mm (0.4 in) over just two days. Additionally, December's humidity sits at a high 78%, while August offers a much drier atmosphere with only 29% humidity. For more specifics on the August climate, check out Las Vegas weather in August.

Comparing the weather in December and September reveals a stark contrast in temperatures and conditions. In December, temperatures range from a chilly -3°C (27°F) at night to a mild 23°C (73°F) during the day, with an average of 7°C (45°F). The precipitation level is relatively low at 18 mm (0.7 in), occurring over just four days, while humidity is quite high at 78%. In contrast, September boasts significantly warmer temperatures, with a minimum of 8°C (47°F) and soaring daytime highs reaching up to 42°C (108°F), averaging 27°C (80°F). Precipitation is minimal in September at only 3 mm (0.1 in) over one day, along with much lower humidity at 43%. For more information, check the details on Las Vegas weather in September.

When comparing the weather in December and October, notable differences emerge in temperature and precipitation patterns. December experiences colder temperatures, with a minimum of -3°C (27°F) and an average of 7°C (45°F), while October boasts a milder range, featuring a minimum of -1°C (31°F) and an average of 18°C (65°F). Additionally, October can reach highs of 35°C (95°F), significantly warmer than December's maximum of 23°C (73°F). Precipitation is also less frequent in October, with only 3 mm (0.1 in) recorded over just 1 day, compared to December’s 18 mm (0.7 in) spread across 4 days. For more insights into the October weather specifically, you can refer to this link: Las Vegas weather in October.

In comparing the weather patterns of December and November, December experiences slightly cooler temperatures with a minimum of -3°C (27°F) and an average temperature of 7°C (45°F), while November's temperatures range from a minimum of -2°C (29°F) to an average of 13°C (55°F). Additionally, December has a higher maximum temperature of 23°C (73°F) compared to November's 28°C (82°F), suggesting November is generally warmer. Precipitation in December is slightly higher at 18 mm (0.7 in) over 4 days, compared to November's 13 mm (0.5 in) over just 1 day. The humidity is also similar, with December at 78% and November at 76%. For more details on November's weather, you can check out the Las Vegas weather in November.

Compare Las Vegas's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Las Vegas

In December, Las Vegas experiences a notable shift from the warmer months, with cooler temperatures that can dip to near freezing at night. While the average daytime highs are still pleasant compared to many other regions, the evenings bring a crisp chill, making it essential to layer up. The city also sees an increase in humidity and occasional rainfall, with several days experiencing light precipitation. This contrasts sharply with the dry desert heat that characterizes the summer months. If you're planning a visit, be prepared for a refreshing dip in climate and consider checking out seasonal events while you enjoy the unique charm of Las Vegas in winter. For more detailed information, visit Las Vegas Climate.