Las Vegas, NV
Las Vegas Weather in May
These are climate averages, not a forecast.
What is the weather like in Las Vegas in May? Based on NOAA 1991–2020 normals at Harry Reid Intl Airport, Las Vegas averages a high of 88.5°F and a low of 66.1°F in May, with 0.07 inches of precipitation. May is 10.0°F warmer than April.
- Average high 88.5°F 31.4°C
- Average low 66.1°F 18.9°C
- Precipitation 0.07 in 1.1 days
- Snow 0.0 in
May Temperatures in Las Vegas
May's average high is 10.0°F warmer than April's.
June's average high is 10.9°F warmer.
The average temperature normal is 77.3°F (25.2°C).
Rain in Las Vegas in May
Precipitation of 0.07 inches is 0.28 inches below the monthly mean of 0.35 inches.
About 1.1 days have at least 0.01 inch of precipitation.
How May Compares to Other Months
May is the fifth-warmest month in Las Vegas and is the second-driest month.
In Las Vegas, four months have a higher average high than May.
| Month | Avg high | Avg low | Precipitation | Days ≥ 0.01 in | Snow |
|---|---|---|---|---|---|
| Las Vegas weather in January | 58.5°F | 40.5°F | 0.56 in | 3.1 | 0.0 in |
| Las Vegas weather in February | 62.9°F | 44.1°F | 0.80 in | 4.1 | 0.0 in |
| Las Vegas weather in March | 71.1°F | 50.5°F | 0.42 in | 2.8 | 0.0 in |
| Las Vegas weather in April | 78.5°F | 56.9°F | 0.20 in | 1.6 | 0.0 in |
| Las Vegas weather in May | 88.5°F | 66.1°F | 0.07 in | 1.1 | 0.0 in |
| Las Vegas weather in June | 99.4°F | 75.8°F | 0.04 in | 0.4 | 0.0 in |
| Las Vegas weather in July | 104.5°F | 82.0°F | 0.38 in | 2.5 | 0.0 in |
| Las Vegas weather in August | 102.8°F | 80.6°F | 0.32 in | 2.2 | 0.0 in |
| Las Vegas weather in September | 94.9°F | 72.4°F | 0.32 in | 1.8 | 0.0 in |
| Las Vegas weather in October | 81.2°F | 59.6°F | 0.32 in | 1.7 | 0.0 in |
| Las Vegas weather in November | 67.1°F | 47.3°F | 0.30 in | 1.5 | 0.0 in |
| Las Vegas weather in December | 56.9°F | 39.6°F | 0.45 in | 3.0 | 0.2 in |
Is May a Good Time to Visit Las Vegas?
May does not meet the weather rule: the average high is 88.5°F, outside 65 to 85°F.
About This Data
Source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991–2020. Station: Harry Reid Intl Airport (NOAA station: LAS VEGAS MCCARRAN AP) (USW00023169), 14.4 mi from downtown, elevation 2131 ft. Climate normals are 30-year averages, not forecasts. MonthSky is not affiliated with NOAA.
Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/wck8-er13. Accessed 2026-10-21.
U.S. Government work.
NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
These pages are built automatically from public NOAA data.
U.S. Monthly Climate Normals (1991-2020) dataset
NCEI dataset landing page for the monthly normals
FAQ
How hot is Las Vegas in May?
The average high is 88.5°F (31.4°C) and the average low is 66.1°F (18.9°C).
Does it rain a lot in Las Vegas in May?
May averages 0.07 inches, below the monthly mean of 0.35 inches. That falls on about 1.1 days.
Is May a good time to visit Las Vegas?
By this page's weather rule, no. The rule keeps months with an average high from 65 to 85°F and precipitation below 0.35 inches.