How warm is it in Las Vegas in December?

Daytime highs averaged 15.9 °C, night-time lows 3.7 °C. The highest value of the past 10 years was 24.4 °C (5 Dec 2021), the lowest -4.1 °C (18 Dec 2016).

How often does it rain in Las Vegas in December?

On average there were 2.6 rain days (at least 1 mm) with 13.2 mm of precipitation in total. In 3 of 10 years there was no rain day at all.

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Las Vegas weather in December: temperature & rain

Photo: Dietmar Rabich · CC BY-SA 4.0

🇺🇸 Weather in Las Vegas in December

This is what the weather in Las Vegas (Nevada, USA) was like in December over the years 2016–2025.

Key facts at a glance

Prevailing weather: Partly cloudy

Avg. daytime high

15.9 °C

12.9 °C – 18.9 °C

Avg. night-time low

3.7 °C

2.2 °C – 6.4 °C

Avg. rain days in period

2.6

8 % of days · ≥ 1.0 mm

Avg. precipitation in period

13.2 mm

0.0 mm – 41.2 mm

Avg. cloud cover

50 %

This data source has no sunshine hours – average cloud cover is shown instead.

Avg. sea temperature

–

No sea nearby – no sea temperature.

Extremes: Highest temperature 24.4 °C (5 Dec 2021) · Lowest temperature -4.1 °C (18 Dec 2016) · Avg. daily peak wind 19 km/h

Weather mix of all days

94Sunny
113Partly cloudy
77Cloudy
18Light rain
8Rain

Summary

On average 15.9 °C during the day and 3.7 °C at night.
On average 2.6 rain days (Rain day = at least 1.0 mm of precipitation) with 13.2 mm of precipitation in total.
In 3 of 10 years there was not a single rain day.
Prevailing weather: Partly cloudy.
Warmest year: 2025 (avg. 18.9 °C), coolest: 2019 (avg. 12.9 °C).
Wettest year: 2016 (41.2 mm), driest: 2017 (0.0 mm).
Extremes: 24.4 °C on 5 Dec 2021 and -4.1 °C on 18 Dec 2016.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2025
Avg. max18.9°Avg. min6.4°
Rain days
4 Rain days
Precipitation
15.7 mm
Avg. cloud cover
45 % cloudy
Sea temperature
–
Max 24.2 °C · Min 1.8 °C
2024
Avg. max18.5°Avg. min5.1°
Rain days
0 Rain days
Precipitation
0.3 mm
Avg. cloud cover
53 % cloudy
Sea temperature
–
Max 21.5 °C · Min 0.0 °C
2023
Avg. max17.5°Avg. min5.0°
Rain days
1 Rain days
Precipitation
1.8 mm
Avg. cloud cover
56 % cloudy
Sea temperature
–
Max 23.2 °C · Min 0.8 °C
2022
Avg. max14.8°Avg. min2.9°
Rain days
2 Rain days
Precipitation
6.1 mm
Avg. cloud cover
54 % cloudy
Sea temperature
–
Max 20.4 °C · Min -2.1 °C
2021
Avg. max15.0°Avg. min3.0°
Rain days
5 Rain days
Precipitation
31.2 mm
Avg. cloud cover
60 % cloudy
Sea temperature
–
Max 24.4 °C · Min -2.4 °C
2020
Avg. max15.4°Avg. min2.3°
Rain days
0 Rain days
Precipitation
0.6 mm
Avg. cloud cover
43 % cloudy
Sea temperature
–
Max 21.7 °C · Min -1.8 °C
2019
Avg. max12.9°Avg. min2.6°
Rain days
6 Rain days
Precipitation
28.8 mm
Avg. cloud cover
61 % cloudy
Sea temperature
–
Max 18.4 °C · Min -2.9 °C
2018
Avg. max14.5°Avg. min3.0°
Rain days
2 Rain days
Precipitation
6.5 mm
Avg. cloud cover
46 % cloudy
Sea temperature
–
Max 19.1 °C · Min -1.4 °C
2017
Avg. max17.6°Avg. min4.0°
Rain days
0 Rain days
Precipitation
0.0 mm
Avg. cloud cover
38 % cloudy
Sea temperature
–
Max 23.7 °C · Min -1.4 °C
2016
Avg. max13.9°Avg. min2.2°
Rain days
6 Rain days
Precipitation
41.2 mm
Avg. cloud cover
50 % cloudy
Sea temperature
–
Max 20.6 °C · Min -4.1 °C

Frequently asked questions

How warm is it in Las Vegas in December?: Daytime highs averaged 15.9 °C, night-time lows 3.7 °C. The highest value of the past 10 years was 24.4 °C (5 Dec 2021), the lowest -4.1 °C (18 Dec 2016).
How often does it rain in Las Vegas in December?: On average there were 2.6 rain days (at least 1 mm) with 13.2 mm of precipitation in total. In 3 of 10 years there was no rain day at all.

Check your exact travel dates

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Data sources

Weather data: Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains.
Sea temperature: MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)