Phoenix vs Las Vegas: Weather & Climate Compared
On annual averages, Phoenix is warmer overall, Las Vegas is sunnier, and Phoenix has more rainy days. The monthly comparison shows when that result changes.
Phoenix vs Las Vegas weather right now
At this moment, Phoenix is the warmer of the two by 7°F (4°C).
Small regional differences that change the experience
Across the year, Phoenix is the warmer of the two: its annual average of 75°F (24°C) beats Las Vegas's 70°F (21°C) by roughly 4.3°F (2.4°C).
For the full seasonal context behind this comparison, see the Phoenix monthly climate guide and Las Vegas monthly climate guide.
Differences that matter for a regional choice
- Sunshine: expect more blue sky in Las Vegas - 11.1 sun hours a day on average, against 10.9 in Phoenix.
- Rain: umbrellas get more use in Phoenix - about 34 wet days a year versus 24 in Las Vegas.
- Peak heat: the hottest stretch lands in July for Phoenix (106°F (41°C)) and July for Las Vegas (105°F (41°C)).
- Coldest nights: January lows of 42°F (6°C) in Phoenix; December lows of 39°F (4°C) in Las Vegas.
Which city has the easier sightseeing weather?
Counting months with average highs between 64°F and 82°F (18–28°C) and fewer than 12 wet days:
- Phoenix: January, February, March, November, December (5 months)
- Las Vegas: March, April, October, November (4 months)
Both cities are at their most comfortable in March, November, the easiest window for a trip that takes in both.
Phoenix vs Las Vegas month by month
| Month | Phoenix high / low | Las Vegas high / low | Phoenix rain days | Las Vegas rain days |
|---|---|---|---|---|
| January | 65° / 42° | 58° / 40° | 4 | 4 |
| February | 70° / 45° | 63° / 42° | 3 | 3 |
| March | 77° / 51° | 70° / 49° | 3 | 4 |
| April | 87° / 59° | 81° / 57° | 1 | 2 |
| May | 93° / 67° | 88° / 64° | 1 | 1 |
| June | 105° / 78° | 101° / 76° | 1 | 0 |
| July | 106° / 84° | 105° / 82° | 5 | 2 |
| August | 104° / 83° | 103° / 80° | 5 | 2 |
| September | 100° / 76° | 96° / 72° | 3 | 1 |
| October | 89° / 64° | 82° / 60° | 2 | 2 |
| November | 76° / 51° | 67° / 47° | 2 | 1 |
| December | 66° / 44° | 57° / 39° | 4 | 2 |
Sunshine, daylight and rain chance
| Month | Phoenix sun | Las Vegas sun | Phoenix daylight | Las Vegas daylight | Phoenix wet-day chance | Las Vegas wet-day chance |
|---|---|---|---|---|---|---|
| January | 8.5 h | 8.5 h | 10.2 h | 9.9 h | 14% | 14% |
| February | 9.7 h | 9.5 h | 10.9 h | 10.8 h | 11% | 11% |
| March | 10.6 h | 10.6 h | 11.9 h | 11.9 h | 10% | 13% |
| April | 12.5 h | 12.3 h | 13.0 h | 13.1 h | 3% | 5% |
| May | 12.9 h | 13.0 h | 13.9 h | 14.1 h | 3% | 4% |
| June | 13.2 h | 13.7 h | 14.4 h | 14.6 h | 3% | 1% |
| July | 12.1 h | 13.2 h | 14.2 h | 14.4 h | 16% | 6% |
| August | 12.2 h | 12.6 h | 13.4 h | 13.5 h | 15% | 6% |
| September | 11.4 h | 11.6 h | 12.3 h | 12.4 h | 9% | 4% |
| October | 10.5 h | 10.6 h | 11.3 h | 11.2 h | 7% | 5% |
| November | 9.4 h | 9.4 h | 10.4 h | 10.2 h | 5% | 4% |
| December | 8.2 h | 8.1 h | 9.9 h | 9.7 h | 13% | 7% |
Seasons compared
| Months | Phoenix high / low | Las Vegas high / low | Phoenix rain days | Las Vegas rain days | Phoenix sun | Las Vegas sun |
|---|---|---|---|---|---|---|
| December - February | 67° / 44° | 59° / 40° | 11 | 10 | 8.8 h | 8.7 h |
| March - May | 86° / 59° | 80° / 57° | 5 | 7 | 12.0 h | 12.0 h |
| June - August | 105° / 82° | 103° / 79° | 11 | 4 | 12.5 h | 13.2 h |
| September - November | 88° / 64° | 82° / 59° | 7 | 4 | 10.4 h | 10.5 h |
Who is warmer, month by month?
There is no seasonal flip here: Phoenix holds the temperature lead in all twelve months of the year. Come November the difference peaks near 9°F (5°C); by July Las Vegas almost catches up.
Dataset extremes, distance and time difference
- Phoenix 2015–2024 extremes: highest daily value 118° in June, lowest 28° in January. These are reanalysis values, not all-time station records.
- Las Vegas 2015–2024 extremes: highest daily value 117° in July, lowest 24° in January. These are reanalysis values, not all-time station records.
- Distance: Phoenix and Las Vegas are about 256 miles (412 km) apart as the crow flies.
- Time difference: Phoenix is 1 hour ahead of Las Vegas right now.