WeatherArchive / Climate averages / Las Vegas
Las Vegas climate: average weather by month
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.