The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: Kailua (Hawaii County), HI vs Oro Valley, AZ

2025 Compare Climate & Weather:
Kailua (Hawaii County), HI vs Oro Valley, AZ

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Highlights

On average, there are 279 sunny days per year in Oro Valley. Kailua (Hawaii County) averages 174 sunny days per year. The US average is 205 sunny days.

Oro Valley, Arizona gets 13.5 inches of rain, on average, per year. Kailua (Hawaii County), Hawaii gets 18.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Oro Valley averages 0.3 inches of snow per year. Kailua (Hawaii County) averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

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

Kailua (Hawaii County), Hawaii
Summer High: the July high is around 83.5 degrees
Winter Low: the January low is 65
Rain: averages 18.7 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index
Oro Valley

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.

7.6 / 10
April, October and March are the most pleasant months in Oro Valley, while July and August are the least comfortable months.

Kailua (Hawaii County)

The annual BestPlaces Comfort Index for Kailua (Hawaii County) is 8.8 (10=best), which means it is more comfortable than most places in Hawaii.

8.8 / 10
February, December and January are the most pleasant months in Kailua (Hawaii County), while August and September are the least comfortable months.

Average Monthly High / Low (°F)
MonthKailua (Hawaii County), HIOro Valley, AZ
January80° / 65°66° / 37°
February80° / 64°69° / 38°
March80° / 66°74° / 42°
April81° / 67°82° / 48°
May82° / 68°92° / 56°
June83° / 70°101° / 65°
July84° / 71°100° / 72°
August84° / 71°98° / 71°
September85° / 71°95° / 65°
October84° / 70°86° / 53°
November83° / 69°75° / 42°
December81° / 66°65° / 36°
Hot, Freezing, Rainy, Snowy Days: Kailua (Hawaii County) / Oro Valley
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 00 / 85 / 50 / 0
February0 / 00 / 64 / 40 / 0
March0 / 10 / 26 / 40 / 0
April0 / 50 / 16 / 20 / 0
May0 / 200 / 08 / 20 / 0
June1 / 290 / 09 / 10 / 0
July1 / 300 / 09 / 80 / 0
August2 / 290 / 07 / 100 / 0
September2 / 250 / 07 / 50 / 0
October1 / 90 / 06 / 30 / 0
November1 / 00 / 45 / 30 / 0
December0 / 00 / 105 / 50 / 0
September is the hottest month for Kailua (Hawaii County) with an average high temperature of 84.5°, which ranks it as about average compared to other places in Hawaii. In Kailua (Hawaii County), there are 12 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Kailua (Hawaii County) are February, January and March.

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.
February has the coldest nighttime temperatures for Kailua (Hawaii County) with an average of 64.4°. This is warmer than most places in Hawaii.

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

In Kailua (Hawaii County), there are 7.8 days annually when the high temperature is over 90°, which is hotter than most places in Hawaii.

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 Kailua (Hawaii County), there are 0.0 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Hawaii.

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 Kailua (Hawaii County), there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Hawaii.

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.

December is the wettest month in Kailua (Hawaii County) with 2.5 inches of rain, and the driest month is June with 1.1 inches. The wettest season is Spring with 33% of yearly precipitation and 22% occurs in Autumn, which is the driest season. The annual rainfall of 18.7 inches in Kailua (Hawaii County) means that it is drier than most places in Hawaii.


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.

June is the rainiest month in Kailua (Hawaii County) with 8.9 days of rain, and February is the driest month with only 4.0 rainy days. There are 76.1 rainy days annually in Kailua (Hawaii County), which is less rainy than most places in Hawaii. The rainiest season is Autumn when it rains 32% of the time and the driest is Spring with only a 18% chance of a rainy day.

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.

There is rarely any recorded snowfall in Kailua (Hawaii County), ranking it as one of the least snowy places in Hawaii.

An annual snowfall of 0.3 inches in Oro Valley means that it is about average compared to other places in Arizona.
Any measurable snowfall is a rare occurance in Kailua (Hawaii County).

December is the snowiest month in Oro Valley with 0.1 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 Kailua (Hawaii County)    2 Reviews
Jill · Sherman Oaks, CA
re:
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
NC For Me · Apex, NC
re:
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 Kailua (Hawaii County)

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Reviews for Oro Valley    2 Reviews
Jill · Sherman Oaks, CA
re:
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
NC For Me · Apex, NC
re:
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 Oro Valley

See all reviews
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Zips In Kailua (Hawaii County), Hawaii
96740
Zips In ORO VALLEY, ARIZONA
85737, 85755
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