2025 Compare Climate & Weather:
Las Vegas, NV vs St. David, AZ

Highlights

On average, there are 279 sunny days per year in St. David. Las Vegas averages 294 sunny days per year. The US average is 205 sunny days.

St. David, Arizona gets 13 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.

St. David averages 1.5 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

St. David, Arizona
Summer High: the July high is around 95.7 degrees
Winter Low: the January low is 28.3
Rain: averages 13 inches of rain a year
Snow: averages 1.5 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 St. David is 7.8 (10=best), which means it is more comfortable than most 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

58°F

Today's Weather - St. David, AZ

42°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Las Vegas / St. David

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 St. David with an average high temperature of 96.8°, which ranks it as about average compared to other places in Arizona. In St. David, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. David are April, October and March.

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

December has the coldest nighttime temperatures for St. David with an average of 28.0°. This is colder than most 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 St. David, there are 107.8 days annually when the high temperature is over 90°, which is about average compared to other 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 St. David, there are 88.5 days annually when the nighttime low temperature falls below freezing, which is colder than most 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 St. David, 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 St. David with 3.0 inches of rain, and the driest month is April with 0.3 inches. The wettest season is Autumn with 48% of yearly precipitation and 10% occurs in Summer, which is the driest season. The annual rainfall of 13.0 inches in St. David 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 St. David with 11.6 days of rain, and April is the driest month with only 1.9 rainy days. There are 55.7 rainy days annually in St. David, which is rainier than most places in Arizona. The rainiest season is Autumn when it rains 43% of the time and the driest is Summer with only a 13% 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 1.5 inches in St. David 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.

January is the snowiest month in St. David with 0.7 inches of snow, and 1 month of the year have significant snowfall.