WeatherArchive / Climate averages / Las Vegas
Las Vegas weather by month: climate averages
Las Vegas averages 68°F (20°C) over the year. July is warmest, with highs around 103°F (39°C); December is coldest, with lows near 38°F (4°C). About 5 inches (131 mm) of precipitation falls on roughly 25 days a year, from 30 years of ERA5 data (1996–2025).
| Month | Avg high | Avg low | Precip. | Days ≥1 mm | Sunshine / day |
|---|---|---|---|---|---|
| January | 14.1°C | 3.7°C | 17.0 mm | 3.3 | 8.9 h |
| February | 16.3°C | 5.1°C | 23.3 mm | 4.0 | 9.5 h |
| March | 20.9°C | 8.8°C | 11.6 mm | 3.0 | 11.0 h |
| April | 25.4°C | 12.5°C | 6.3 mm | 1.8 | 12.4 h |
| May | 30.8°C | 17.3°C | 4.3 mm | 1.0 | 13.2 h |
| June | 36.8°C | 22.9°C | 1.9 mm | 0.4 | 13.9 h |
| July | 39.5°C | 26.7°C | 7.2 mm | 2.0 | 13.5 h |
| August | 38.2°C | 25.7°C | 11.7 mm | 1.9 | 12.8 h |
| September | 33.9°C | 21.4°C | 9.5 mm | 1.3 | 11.8 h |
| October | 26.5°C | 14.7°C | 9.0 mm | 1.6 | 10.6 h |
| November | 18.9°C | 8.3°C | 11.4 mm | 1.6 | 9.3 h |
| December | 13.3°C | 3.6°C | 17.7 mm | 3.0 | 8.3 h |
Record high 1996–2025: 47.4°C on 2024-07-07. Record low: -6.9°C on 2008-12-19.
Source: Open-Meteo Historical Weather API (CC BY 4.0). Values are ERA5 reanalysis model data on a ~9–25 km grid, not readings from a weather station, so a single town’s thermometer can differ by a few degrees and local showers can be missed. Grid cell 36.17, -115.13 at 620 m. For snowfall, humidity and a best-time-to-visit score, open Las Vegas in the climate tool.
Las Vegas weather month by month
The wettest month in Las Vegas is February, averaging 0.9 in (23 mm); the driest is June at 0.1 in (2 mm). February has the most days with at least 1 mm of rain (about 4). June is the sunniest month, with about 13.9 hours of sunshine a day, against 8.3 hours in December. If you like average highs between 64 °F and 82 °F (18–28 °C) with few rainy days, aim for April, October and November.
Planning a particular day? See how often that date was wet or hot over 30 years with the event weather odds, or look up what the weather actually was on any past date in the historical weather archive.
Questions people ask
What is the warmest month in Las Vegas?
July, with an average daily high of 103°F (39°C) over 1996–2025.
What is the coldest month in Las Vegas?
December, when nights average about 38°F (4°C).
What is the rainiest month in Las Vegas?
February has the most precipitation (about 0.9 in (23 mm)), and February has the most rainy days (about 4 days with 1 mm or more). The driest month is June.
How much sunshine does Las Vegas get?
About 11.3 hours of bright sunshine a day averaged over the year, from 8.3 h in December to 13.9 h in June. Sunshine here is the model’s estimate of hours with direct sun, not hours of daylight.
What is the best month to visit Las Vegas for mild weather?
By average high between 64 °F and 82 °F (18–28 °C) and the fewest rainy days: April, October, November. Prices, crowds and events are not included.