2025 Compare Climate & Weather:
Rowlett, TX vs Surprise, AZ

Highlights

On average, there are 301 sunny days per year in Surprise. Rowlett averages 230 sunny days per year. The US average is 205 sunny days.

Surprise, Arizona gets 9.2 inches of rain, on average, per year. Rowlett, Texas gets 40.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Surprise averages 0.1 inches of snow per year. Rowlett averages 0.8 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Surprise, Arizona
Summer High: the July high is around 105.5 degrees
Winter Low: the January low is 42.2
Rain: averages 9.2 inches of rain a year
Snow: averages 0.1 inches of snow a year

Rowlett, Texas
Summer High: the July high is around 94.7 degrees
Winter Low: the January low is 35
Rain: averages 40.4 inches of rain a year
Snow: averages 0.8 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Rowlett is 7.1 (10=best), which means it is about average compared to other places in Texas.

Today's Weather - Rowlett, TX

83°F

Today's Weather - Surprise, AZ

88°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Rowlett / Surprise

August is the hottest month for Rowlett with an average high temperature of 95.6°, which ranks it as about average compared to other places in Texas. In Rowlett, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rowlett are October, April and May.

July is the hottest month for Surprise with an average high temperature of 105.5°, which ranks it as warmer than most places in Arizona. In Surprise, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Surprise are March, November and April.

January has the coldest nighttime temperatures for Rowlett with an average of 35.0°. This is about average compared to other places in Texas.

December has the coldest nighttime temperatures for Surprise with an average of 41.1°. This is warmer than most places in Arizona.

In Rowlett, there are 88.3 days annually when the high temperature is over 90°, which is cooler than most places in Texas.

In Surprise, there are 165.1 days annually when the high temperature is over 90°, which is hotter than most places in Arizona.

In Rowlett, there are 31.0 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Texas.

In Surprise, there are 4.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Arizona.

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

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

May is the wettest month in Rowlett with 5.0 inches of rain, and the driest month is August with 1.9 inches. The wettest season is Summer with 30% of yearly precipitation and 21% occurs in Autumn, which is the driest season. The annual rainfall of 40.4 inches in Rowlett means that it is wetter than most places in Texas.


February is the wettest month in Surprise with 1.3 inches of rain, and the driest month is May with 0.1 inches. The wettest season is Spring with 37% of yearly precipitation and 15% occurs in Summer, which is the driest season. The annual rainfall of 9.2 inches in Surprise means that it is drier than most places in Arizona.

May is the rainiest month in Rowlett with 9.2 days of rain, and July is the driest month with only 4.9 rainy days. There are 85.8 rainy days annually in Rowlett, which is rainier than most places in Texas. The rainiest season is Summer when it rains 29% of the time and the driest is Autumn with only a 21% chance of a rainy day.

February is the rainiest month in Surprise with 3.9 days of rain, and June is the driest month with only 0.4 rainy days. There are 32.0 rainy days annually in Surprise, which is less rainy than most places in Arizona. The rainiest season is Spring when it rains 36% of the time and the driest is Summer with only a 19% chance of a rainy day.

An annual snowfall of 0.8 inches in Rowlett means that it is snowier than most places in Texas.

An annual snowfall of 0.1 inches in Surprise means that it is less snowy than most places in Arizona.

February is the snowiest month in Rowlett with 0.3 inches of snow, and no months of the year have significant snowfall.

December is the snowiest month in Surprise with 0.0 inches of snow, and no months of the year have significant snowfall.