Annual mean 20°C · wettest around April · prevailing wind E
Warmest
38.9 °C
Coldest
11.3 °C
Wettest
32%
Windiest
4.8 m/s
Prevailing
E
3.9 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Las Vegas over the whole year is 20°C. July is the hottest month, with highs of about 39°C; January is the coldest, with lows of about 4°C. Las Vegas has no sharply defined rainy season: the chance of rain on a given day runs from 7% in June, the driest month, to 16% in April, the wettest. Winds in Las Vegas are highest in April, averaging 4.0 m/s (14 km/h), and lightest in December, at 2.5 m/s (9 km/h). The prevailing wind is from the E. The clearest skies in Las Vegas come in June, when the sky is typically 9% covered; March is the cloudiest month, at 25%.
Month by month Las Vegas climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
12°C
4°C
7°C
13%
24%
2.7 m/s
4
0
59
February
15°C
6°C
9°C
15%
21%
3.3 m/s
20
0
65
March
18°C
9°C
12°C
13%
25%
3.9 m/s
36
2
75
April
24°C
14°C
18°C
16%
17%
4.0 m/s
69
14
69
May
29°C
19°C
23°C
10%
15%
4.0 m/s
67
41
44
June
36°C
26°C
31°C
7%
9%
4.0 m/s
26
56
8
July
39°C
29°C
35°C
11%
12%
3.7 m/s
5
36
1
August
37°C
27°C
34°C
13%
12%
3.5 m/s
7
43
1
September
33°C
22°C
29°C
14%
10%
3.1 m/s
39
61
15
October
26°C
14°C
21°C
11%
10%
2.9 m/s
72
30
56
November
18°C
8°C
13°C
10%
14%
2.7 m/s
42
1
79
December
13°C
4°C
8°C
11%
22%
2.5 m/s
8
0
64
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Las Vegas weather by season
Year round, Las Vegas has days of about 12°C at their warmest in January, its coolest month, and 39°C in July, its warmest; the coolest hours of the day run from 4°C to 29°C through the year, and the average temperature over the year is 20°C around the clock. Rain is most likely around April and least likely around June. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Las Vegas weather in winterDecember to February
High 13°CLow 5°CRain 13%
Winter in Las Vegas has typical daily highs of about 13°C and lows of about 5°C, with a 13% chance of rain on a given day.
Las Vegas weather in springMarch to May
High 24°CLow 14°CRain 13%
Spring in Las Vegas has typical daily highs of about 24°C and lows of about 14°C, with a 13% chance of rain on a given day.
Las Vegas weather in summerJune to August
High 37°CLow 27°CRain 10%
Summer in Las Vegas has typical daily highs of about 37°C and lows of about 27°C, with a 10% chance of rain on a given day.
Las Vegas weather in autumnSeptember to November
High 25°CLow 15°CRain 12%
Autumn in Las Vegas has typical daily highs of about 25°C and lows of about 15°C, with a 12% chance of rain on a given day.
When is the rainy season in Las Vegas?
Las Vegas has no sharply defined rainy season: the chance of rain on a given day runs from 7% in June, the driest month, to 16% in April, the wettest.
What time of year is Las Vegas windiest?
Winds in Las Vegas are highest in April, averaging 4.0 m/s (14 km/h), and lightest in December, at 2.5 m/s (9 km/h). The prevailing wind is from the E.
What is the average temperature in Las Vegas year round?
The average temperature in Las Vegas over the whole year is 20°C. July is the hottest month, with highs of about 39°C; January is the coldest, with lows of about 4°C.