2025 Compare Climate & Weather:
Las Vegas, NV vs Sierra Vista Southeast, AZ

Highlights

On average, there are 288 sunny days per year in Sierra Vista Southeast. Las Vegas averages 294 sunny days per year. The US average is 205 sunny days.

Sierra Vista Southeast, Arizona gets 15.5 inches of rain, on average, per year. Las Vegas, Nevada gets 5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Sierra Vista Southeast averages 1.3 inches of snow per year. Las Vegas averages 0.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Sierra Vista Southeast, Arizona
Summer High: the July high is around 91.3 degrees
Winter Low: the January low is 33.8
Rain: averages 15.5 inches of rain a year
Snow: averages 1.3 inches of snow a year

Las Vegas, Nevada
Summer High: the July high is around 103.8 degrees
Winter Low: the January low is 37.1
Rain: averages 5 inches of rain a year
Snow: averages 0.3 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Sierra Vista Southeast is 8.4 (10=best), which means it is one of the most pleasant places in Arizona.

The annual BestPlaces Comfort Index for Las Vegas is 7.4 (10=best), which means it is more comfortable than most places in Nevada.

Today's Weather - Las Vegas, NV

68°F

Today's Weather - Sierra Vista Southeast, AZ

73°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Las Vegas / Sierra Vista Southeast

July is the hottest month for Las Vegas with an average high temperature of 103.8°, which ranks it as warmer than most places in Nevada. In Las Vegas, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Las Vegas are April, October and March.

June is the hottest month for Sierra Vista Southeast with an average high temperature of 92.8°, which ranks it as cooler than most places in Arizona. In Sierra Vista Southeast, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sierra Vista Southeast are October, April and May.

December has the coldest nighttime temperatures for Las Vegas with an average of 36.6°. This is one of the warmest places in Nevada.

January has the coldest nighttime temperatures for Sierra Vista Southeast with an average of 33.8°. This is about average compared to other places in Arizona.

In Las Vegas, there are 129.0 days annually when the high temperature is over 90°, which is hotter than most places in Nevada.

In Sierra Vista Southeast, there are 70.4 days annually when the high temperature is over 90°, which is cooler than most places in Arizona.

In Las Vegas, there are 16.0 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Nevada.

In Sierra Vista Southeast, there are 38.0 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Arizona.

In Las Vegas, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Nevada.

In Sierra Vista Southeast, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Arizona.

February is the wettest month in Las Vegas with 0.8 inches of rain, and the driest month is May with 0.1 inches. The wettest season is Spring with 40% of yearly precipitation and 17% occurs in Summer, which is the driest season. The annual rainfall of 5.0 inches in Las Vegas means that it is drier than most places in Nevada.


August is the wettest month in Sierra Vista Southeast with 3.7 inches of rain, and the driest month is May with 0.3 inches. The wettest season is Autumn with 49% of yearly precipitation and 8% occurs in Summer, which is the driest season. The annual rainfall of 15.5 inches in Sierra Vista Southeast means that it is wetter than most places in Arizona.

February is the rainiest month in Las Vegas with 4.6 days of rain, and June is the driest month with only 0.6 rainy days. There are 26.1 rainy days annually in Las Vegas, which is one of the least rainy places in Nevada. The rainiest season is Spring when it rains 40% of the time and the driest is Winter with only a 20% chance of a rainy day.

August is the rainiest month in Sierra Vista Southeast with 11.6 days of rain, and May is the driest month with only 1.5 rainy days. There are 53.2 rainy days annually in Sierra Vista Southeast, which is rainier than most places in Arizona. The rainiest season is Autumn when it rains 47% of the time and the driest is Summer with only a 11% chance of a rainy day.

An annual snowfall of 0.3 inches in Las Vegas means that it is less snowy than most places in Nevada.

An annual snowfall of 1.3 inches in Sierra Vista Southeast means that it is about average compared to other places in Arizona.

December is the snowiest month in Las Vegas with 0.2 inches of snow, and no months of the year have significant snowfall.

December is the snowiest month in Sierra Vista Southeast with 0.5 inches of snow, and 2 months of the year have significant snowfall.