2025 Compare Climate & Weather:
New Haven, CT vs Las Vegas, NV

Highlights

On average, there are 294 sunny days per year in Las Vegas. New Haven averages 204 sunny days per year. The US average is 205 sunny days.

Las Vegas, Nevada gets 5 inches of rain, on average, per year. New Haven, Connecticut gets 48.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Las Vegas averages 0.3 inches of snow per year. New Haven averages 29.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

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

New Haven, Connecticut
Summer High: the July high is around 83.4 degrees
Winter Low: the January low is 20.5
Rain: averages 48.1 inches of rain a year
Snow: averages 29.1 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for New Haven is 7.2 (10=best), which means it is one of the most pleasant places in Connecticut.

Today's Weather - New Haven, CT

60°F

Today's Weather - Las Vegas, NV

65°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: New Haven / Las Vegas

July is the hottest month for New Haven with an average high temperature of 83.4°, which ranks it as warmer than most places in Connecticut. In New Haven, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for New Haven are June, September and August.

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.

January has the coldest nighttime temperatures for New Haven with an average of 20.5°. This is warmer than most places in Connecticut.

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

In New Haven, there are 7.6 days annually when the high temperature is over 90°, which is about average compared to other places in Connecticut.

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 New Haven, there are 112.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Connecticut.

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 New Haven, there are 1.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Connecticut.

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.

April is the wettest month in New Haven with 4.5 inches of rain, and the driest month is February with 3.1 inches. The wettest season is Summer with 27% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 48.1 inches in New Haven means that it is drier than most places in Connecticut.


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.

May is the rainiest month in New Haven with 10.7 days of rain, and August is the driest month with only 7.8 rainy days. There are 107.7 rainy days annually in New Haven, which is one of the least rainy places in Connecticut. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.

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.

An annual snowfall of 29.1 inches in New Haven means that it is less snowy than most places in Connecticut.

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

January is the snowiest month in New Haven with 8.4 inches of snow, and 6 months of the year have significant snowfall.

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