Tucson, AZ Climate


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United States / Arizona / Tucson Metro Area / Pima County / Tucson / Zip Codes
Tucson, AZ has a subtropical desert climate with hot summers and mild winters. During the summer months the temperature can reach up to 110 degrees Fahrenheit, while the winter can dip down into the 40s. Tucson experiences very low humidity throughout the year and rainfall is scarce, averaging only 12 inches annually. These conditions make for some of the most extreme temperature swings found in any city in the United States. Despite this, Tucson remains an attractive destination due to its natural beauty, cultural diversity and vibrant atmosphere.

Tucson, Arizona gets 12 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Tucson averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 286 sunny days per year in Tucson. The US average is 205 sunny days.

Tucson gets some kind of precipitation, on average, 52 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 100 degrees
Winter Low: the January low is 39
Rain: averages 12 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Tucson is 7.5 (10=best), which means it is about average compared to other places in Arizona.

4.8 Summer - 8.5 Winter
April, March and November are the most pleasant months in Tucson, while July and August are the least comfortable months.

  ClimateTucson, ArizonaUnited States
  12.3 in.38.1 in.
  0.4 in.27.8 in.
  51.5 days106.2 days
  286 days205 days
  100.2°85.8°
  38.7°21.7°
  7.57
  6.54.3
  2490 ft.2443 ft.
Climate
YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

June is the hottest month for Tucson with an average high temperature of 100.5°, which ranks it as warmer than most places in Arizona. In Tucson, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Tucson are March, November and April.
In Tucson, there are 149.2 days annually when the high temperature is over 90°, which is hotter than most places in Arizona.
December has the coldest nighttime temperatures for Tucson with an average of 38.0°. This is warmer than most places in Arizona.
In Tucson, there are 17.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Arizona.
In Tucson, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Arizona.
Humidity in Tucson is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are August, July and September.
August is the wettest month in Tucson with 2.4 inches of rain, and the driest month is May with 0.2 inches. The wettest season is Autumn with 40% of yearly precipitation and 11% occurs in Summer, which is the driest season. The annual rainfall of 12.3 inches in Tucson means that it is about average compared to other places in Arizona.
August is the rainiest month in Tucson with 9.5 days of rain, and June is the driest month with only 1.4 rainy days. There are 51.5 rainy days annually in Tucson, which is about average compared to other places in Arizona. The rainiest season is Autumn when it rains 38% of the time and the driest is Summer with only a 15% chance of a rainy day.
An annual snowfall of 0.4 inches in Tucson means that it is about average compared to other places in Arizona. January is the snowiest month in Tucson with 0.2 inches of snow, and no months of the year have significant snowfall.
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Greg · Tucson, AZ
Tucson no longer worth the effort
Over 1 years ago

My wife and I characterize ourselves as a young couple, well educated, with decent positions and we’re Tucson natives. We’ve observed our quality of life from both a  More

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Pamela · Nogales, AZ
Gridlock and Heat Matter
Over 1 years ago

I was reading the reviews for Tucson, and after living there for 6 years, I feel the need to weigh in. There are many pros in Tucson: access to recreational areas,  More

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Stephen · Green Valley, AZ
No Longer a Nice Little Town
Over 1 years ago

I spend considerable time in and around Tucson, and I've see it rapidly going "downhill" since 2020. It's definitely not the nice town I remember from when I was a  More

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