The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: San Tan Valley, AZ vs Las Vegas, NV

2025 Compare Climate & Weather:
San Tan Valley, AZ vs Las Vegas, NV

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Highlights

On average, there are 294 sunny days per year in Las Vegas. San Tan Valley averages 292 sunny days per year. The US average is 205 sunny days.

Las Vegas, Nevada gets 5 inches of rain, on average, per year. San Tan Valley, Arizona gets 9.9 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. San Tan Valley averages 0 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

San Tan Valley, Arizona
Summer High:
the July high is around 105 degrees
Winter Low: the January low is 39.4
Rain: averages 9.9 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index
Las Vegas

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

7.4 / 10
October, April and March are the most pleasant months in Las Vegas, while July and August are the least comfortable months.

San Tan Valley

The annual BestPlaces Comfort Index for San Tan Valley is 7.3 (10=best), which means it is less comfortable than most places in Arizona.

7.3 / 10
April, March and November are the most pleasant months in San Tan Valley, while July and August are the least comfortable months.

Average Monthly High / Low (°F)
MonthSan Tan Valley, AZLas Vegas, NV
January67° / 39°58° / 37°
February70° / 42°62° / 41°
March77° / 46°70° / 47°
April85° / 52°78° / 53°
May95° / 61°88° / 63°
June103° / 69°98° / 72°
July105° / 77°104° / 78°
August103° / 76°101° / 76°
September99° / 70°93° / 68°
October88° / 57°80° / 56°
November75° / 45°66° / 44°
December65° / 38°56° / 37°
Hot, Freezing, Rainy, Snowy Days: San Tan Valley / Las Vegas
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 05 / 64 / 30 / 0
February0 / 02 / 24 / 50 / 0
March1 / 01 / 03 / 30 / 0
April9 / 30 / 02 / 20 / 0
May24 / 140 / 01 / 10 / 0
June29 / 260 / 00 / 10 / 0
July31 / 310 / 04 / 20 / 0
August30 / 300 / 05 / 20 / 0
September28 / 220 / 03 / 20 / 0
October13 / 40 / 02 / 20 / 0
November1 / 01 / 12 / 20 / 0
December0 / 06 / 73 / 30 / 0
July is the hottest month for San Tan Valley with an average high temperature of 105.0°, which ranks it as warmer than most places in Arizona. In San Tan Valley, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Tan Valley are March, November and April.

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.
December has the coldest nighttime temperatures for San Tan Valley with an average of 38.3°. This is warmer than most places in Arizona.

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 San Tan Valley, there are 165.5 days annually when the high temperature is over 90°, which is hotter 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 San Tan Valley, there are 14.2 days annually when the nighttime low temperature falls below freezing, which is warmer 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 San Tan Valley, there are 0.0 days annually when the nighttime low temperature falls below zero°, 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.

August is the wettest month in San Tan Valley with 1.5 inches of rain, and the driest month is June with 0.0 inches. The wettest season is Spring with 35% of yearly precipitation and 18% occurs in Summer, which is the driest season. The annual rainfall of 9.9 inches in San Tan Valley means that it is drier than most 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 rainiest month in San Tan Valley with 4.6 days of rain, and June is the driest month with only 0.3 rainy days. There are 32.2 rainy days annually in San Tan Valley, which is less rainy than most places in Arizona. The rainiest season is Spring when it rains 34% of the time and the driest is Summer with only a 18% 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.

There is rarely any recorded snowfall in San Tan Valley, ranking it as one of the least snowy places in Arizona.

An annual snowfall of 0.3 inches in Las Vegas means that it is less snowy than most places in Nevada.
Any measurable snowfall is a rare occurance in San Tan Valley.

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

DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.

Reviews for San Tan Valley    2 Reviews

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

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Start Your Review of San Tan Valley

Reviews for Las Vegas    2 Reviews

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of Las Vegas

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Zips In San Tan Valley, Arizona
85140, 85143
Zips In LAS VEGAS, NEVADA
89108, 89110, 89129, 89117, 89131, 89101, 89102, 89149, 89107, 89128, 19 total
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