2025 Compare Climate & Weather:
Oro Valley, AZ vs Chapel Hill, NC

Highlights

On average, there are 216 sunny days per year in Chapel Hill. Oro Valley averages 279 sunny days per year. The US average is 205 sunny days.

Chapel Hill, North Carolina gets 46.3 inches of rain, on average, per year. Oro Valley, Arizona gets 13.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Chapel Hill averages 3.8 inches of snow per year. Oro Valley averages 0.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Chapel Hill, North Carolina
Summer High: the July high is around 88.8 degrees
Winter Low: the January low is 29.3
Rain: averages 46.3 inches of rain a year
Snow: averages 3.8 inches of snow a year

Oro Valley, Arizona
Summer High: the July high is around 100.2 degrees
Winter Low: the January low is 36.9
Rain: averages 13.5 inches of rain a year
Snow: averages 0.3 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Chapel Hill is 7.5 (10=best), which means it is more comfortable than most places in North Carolina.

The annual BestPlaces Comfort Index for Oro Valley is 7.6 (10=best), which means it is about average compared to other places in Arizona.

Today's Weather - Oro Valley, AZ

77°F

Today's Weather - Chapel Hill, NC

70°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Oro Valley / Chapel Hill

June is the hottest month for Oro Valley with an average high temperature of 100.5°, which ranks it as warmer than most places in Arizona. In Oro Valley, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Oro Valley are November, March and April.

July is the hottest month for Chapel Hill with an average high temperature of 88.8°, which ranks it as cooler than most places in North Carolina. In Chapel Hill, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Chapel Hill are May, September and October.

December has the coldest nighttime temperatures for Oro Valley with an average of 35.8°. This is warmer than most places in Arizona.

January has the coldest nighttime temperatures for Chapel Hill with an average of 29.3°. This is about average compared to other places in North Carolina.

In Oro Valley, there are 147.2 days annually when the high temperature is over 90°, which is hotter than most places in Arizona.

In Chapel Hill, there are 36.9 days annually when the high temperature is over 90°, which is about average compared to other places in North Carolina.

In Oro Valley, there are 30.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Arizona.

In Chapel Hill, there are 70.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in North Carolina.

In Oro 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 Chapel Hill, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in North Carolina.

August is the wettest month in Oro Valley with 2.6 inches of rain, and the driest month is May with 0.3 inches. The wettest season is Autumn with 38% of yearly precipitation and 13% occurs in Summer, which is the driest season. The annual rainfall of 13.5 inches in Oro Valley means that it is wetter than most places in Arizona.


August is the wettest month in Chapel Hill with 4.6 inches of rain, and the driest month is April with 3.3 inches. The wettest season is Autumn with 28% of yearly precipitation and 23% occurs in Spring, which is the driest season. The annual rainfall of 46.3 inches in Chapel Hill means that it is drier than most places in North Carolina.

August is the rainiest month in Oro Valley with 9.5 days of rain, and June is the driest month with only 1.2 rainy days. There are 51.0 rainy days annually in Oro Valley, which is about average compared to other places in Arizona. The rainiest season is Autumn when it rains 37% of the time and the driest is Summer with only a 15% chance of a rainy day.

July is the rainiest month in Chapel Hill with 10.9 days of rain, and October is the driest month with only 7.6 rainy days. There are 113.5 rainy days annually in Chapel Hill, which is rainier than most places in North Carolina. The rainiest season is Autumn when it rains 27% of the time and the driest is Winter with only a 21% chance of a rainy day.

An annual snowfall of 0.3 inches in Oro Valley means that it is about average compared to other places in Arizona.

An annual snowfall of 3.8 inches in Chapel Hill means that it is snowier than most places in North Carolina.

December is the snowiest month in Oro Valley with 0.1 inches of snow, and no months of the year have significant snowfall.

January is the snowiest month in Chapel Hill with 1.9 inches of snow, and 2 months of the year have significant snowfall.