Las Vegas weather in May: Las Vegas, Nevada: normal highs, lows, rain and records for May
Las Vegas in May has a normal high of 89°F and a normal low of 66°F, a daily mean of 77°F, rising from 83°F on the 1st to 94°F by the 31st. Measurable precipitation falls on 1 days in a normal May, 0.07 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 19°C, 2 mm of precipitation in May.
- NOAA stationHarry Reid International Airport
- Station IDUSW00023169
- Location36.07°N 115.16°W
- Elevation2,131 ft (650 m)
- From the center12 miles
- Population678,922
- Jan 59° 41°
- Feb 63° 44°
- Mar 71° 51°
- Apr 79° 57°
- May 89° 66°
- Jun 99° 76°
- Jul 105° 82°
- Aug 103° 81°
- Sep 95° 72°
- Oct 81° 60°
- Nov 67° 47°
- Dec 57° 40°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Las Vegas in May?
The normal high is 89°F and the normal low 66°F, for a daily mean of 77.3°F. May is 9.6°F warmer than April and 10.3°F cooler than June. May is the 5th warmest month of the year in Las Vegas and the 11th wettest. Across the month the normal high rises 11°F, from 83°F on May 1 to 94°F on May 31. From one year to the next May's mean temperature typically moves about 3.8°F either way (NOAA's standard deviation), so roughly two Mays in three average between 74°F and 81°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 4%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 83°F | 61°F | 4% | 1% |
| May 8 | 85°F | 64°F | 4% | 1% |
| May 15 | 88°F | 66°F | 4% | 1% |
| May 22 | 91°F | 68°F | 3% | 1% |
| May 31 | 94°F | 71°F | 3% | 1% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 83°F | 61°F | 4% | 1% | 13 h 40 min |
| May 2 | 83°F | 62°F | 4% | 1% | 13 h 40 min |
| May 3 | 84°F | 62°F | 4% | 1% | 13 h 40 min |
| May 4 | 84°F | 62°F | 4% | 1% | 13 h 40 min |
| May 5 | 84°F | 63°F | 4% | 1% | 13 h 50 min |
| May 6 | 85°F | 63°F | 4% | 1% | 13 h 50 min |
| May 7 | 85°F | 63°F | 4% | 1% | 13 h 50 min |
| May 8 | 85°F | 64°F | 4% | 1% | 13 h 50 min |
| May 9 | 86°F | 64°F | 4% | 1% | 13 h 50 min |
| May 10 | 86°F | 64°F | 4% | 1% | 13 h 50 min |
| May 11 | 87°F | 65°F | 4% | 1% | 14 h |
| May 12 | 87°F | 65°F | 4% | 1% | 14 h |
| May 13 | 87°F | 65°F | 4% | 1% | 14 h |
| May 14 | 88°F | 66°F | 4% | 1% | 14 h |
| May 15 | 88°F | 66°F | 4% | 1% | 14 h |
| May 16 | 89°F | 66°F | 4% | 1% | 14 h |
| May 17 | 89°F | 66°F | 4% | 1% | 14 h 10 min |
| May 18 | 89°F | 67°F | 3% | 1% | 14 h 10 min |
| May 19 | 90°F | 67°F | 3% | 1% | 14 h 10 min |
| May 20 | 90°F | 67°F | 3% | 1% | 14 h 10 min |
| May 21 | 91°F | 68°F | 3% | 1% | 14 h 10 min |
| May 22 | 91°F | 68°F | 3% | 1% | 14 h 10 min |
| May 23 | 91°F | 68°F | 3% | 1% | 14 h 20 min |
| May 24 | 92°F | 69°F | 3% | 1% | 14 h 20 min |
| May 25 | 92°F | 69°F | 3% | 1% | 14 h 20 min |
| May 26 | 93°F | 69°F | 3% | 1% | 14 h 20 min |
| May 27 | 93°F | 70°F | 3% | 1% | 14 h 20 min |
| May 28 | 93°F | 70°F | 3% | 1% | 14 h 20 min |
| May 29 | 94°F | 70°F | 3% | 1% | 14 h 20 min |
| May 30 | 94°F | 71°F | 3% | 1% | 14 h 20 min |
| May 31 | 94°F | 71°F | 3% | 1% | 14 h 20 min |
- Normal high
- 89°FMay average
- Normal low
- 66°FMay average
- Precipitation
- 0.07 inmonth total
- Days with precipitation
- 10.01 inch or more
- Days at 90°F or more
- 16
- Daylight
- 13 h 40 min to 14 h 20 minMay 1 to May 31
- Days at 70°F or more
- 30
- Days at 80°F or more
- 26
- Sunshine
- 91%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023169; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Las Vegas in May?
On a given May day the chance of 0.01 inch or more is 3% on average, highest around May 1 (4%). In all, 0.07 in falls on 1 days of a normal May.
In a normal May in Las Vegas, 16 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023169.
How humid and windy is Las Vegas in May?
At 3 p.m. the normal temperature is 93°F with 11% relative humidity and a dew point of 30°F; at 6 a.m. it is 74°F with 24% humidity. The wind averages 9.7 mph, most often from the south-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 74°F | 35°F | 24% | 7.0 mph | 69% |
| 9 a.m. | 83°F | 34°F | 17% | 8.1 mph | 68% |
| noon | 90°F | 32°F | 13% | 9.8 mph | 58% |
| 3 p.m. | 93°F | 30°F | 11% | 11.5 mph | 54% |
| 6 p.m. | 91°F | 30°F | 11% | 12.4 mph | 59% |
| 9 p.m. | 84°F | 30°F | 14% | 10.3 mph | 70% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00023169. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for May in Las Vegas?
The warmest May temperature on Las Vegas's official record (since 1937) is 109°F, on May 26, 1951; the coldest is 38°F, on May 3, 1942. The wettest May brought 1.44 in (2025).
The May mean against the 1991-2020 normal of 77.3°F: 2021 78.8°F (+1.5), 2022 77.6°F (+0.3), 2023 77.8°F (+0.5), 2024 80.2°F (+2.9), 2025 78.9°F (+1.6), 2026 78.8°F (+1.5). 6 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 78.8°F | +1.5°F | 0.01 in |
| 2022 | 77.6°F | +0.3°F | 0.00 in |
| 2023 | 77.8°F | +0.5°F | 0.00 in |
| 2024 | 80.2°F | +2.9°F | 0.00 in |
| 2025 | 78.9°F | +1.6°F | 1.44 in |
| 2026 | 78.8°F | +1.5°F | 0.00 in |
Source: records: ACIS, NWS threaded record LASthr; recent months: ACIS, station USW00023169. Records and recent months use complete months only.
How does May in Las Vegas compare across Nevada?
Across the 55 places PlainClimate covers in Nevada, May normal highs run from 59°F in Glenbrook to 95°F in Laughlin; Las Vegas's is 89°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.