10-Day Weather Forecast for Phoenix, AZ - The Weather Channel | weather.com (2024)

FAQs

How hot does it get in Phoenix, AZ? ›

On average, there are 111 days annually with a high of at least 100 °F (38 °C), including most days from the end of May through late September. Highs top 110 °F (43 °C) an average of 21 days during the year. On June 26, 1990, the temperature reached an all-time recorded high of 122 °F (50 °C).

Single digital humidity levels are not uncommon. It is a desert. Phoenix receives about 7 inches of rain per year.

By 2050, people in Phoenix are projected to experience an average of about 47 days per year over 110.0ºF. Climate change is increasing the frequency and intensity of heat waves, even in places with cooler average temperatures. See more information on heat risk.

Lake Havasu City hit 128 degrees on June 29, 1994, making it the hottest temperature ever recorded in the state, according to the National Weather Service. This is just 6 degrees cooler than the record high in Death Valley. The highest temperature recorded in Phoenix was 122 degrees on June 26, 1990.

In Orlando, Florida, 98 degrees with 78% humidity will make you feel like you just stepped into a hot shower, but 112 degrees in Phoenix, Arizona, with 16% humidity will feel extremely hot. However, the way your body responds to the heat with less moisture in the air is a little different.

Swilling, having been a confederate soldier, wanted to name the new settlement Stonewall after Stonewall Jackson. Others suggested the name Salina, but neither name suited the inhabitants. It was Darrell Duppa who suggested the name Phoenix, inasmuch as the new town would spring from the ruins of a former civilization.

What's it like living in Phoenix? As the state's capital city — and fifth largest city in the U.S. — Phoenix is a thriving area of Arizona that offers a strong economy with plenty of job opportunities, beautiful sunny weather, and urban communities with numerous amenities.

Florida has a humid subtropical climate and is by far the warmest state in the contiguous U.S. based on average annual temperatures.

What's the coldest it's ever been in Phoenix Arizona? ›

The coldest low ever recorded in Phoenix was 16 degrees in 1913. The coldest temperature recorded in Arizona was -40 degrees at Hawley Lake near the White Mountains in 1971.

The record for the warmest night ever in Phoenix was also set last summer — on July 19 — when the low temperature was 97 degrees. "That is just three degrees off" of a possible 100-degree night, Salerno noted.

July 2024 was the second hottest on record, with the average high just above 112 degrees. The average daily high is about 107.

In the past 10 years, that average has not dipped below 94.7 and hit a new high of 102.7 degrees in 2023. Scientists say the increase is about half due to the heat-trapping result of development sprawling in every direction and half due to human-caused climate change.

Friederike Otto, a climate scientist at Imperial College London's Grantham Institute, said there was a "high chance" 2024 would rank as the hottest year on record. "El Nino is a naturally occurring phenomenon that will always come and go.

Although endless sunny days do sound nice, living in metro Phoenix at the hottest time of year presents challenges that people who aren't burdened with relentless triple-digit temperatures might not be aware of.

Phoenix is located in about the center of the Salt River Valley, a broad, oval-shaped, nearly flat plain. The Salt River runs from east to west through the valley, but, owing to impounding dams upstream, it is usually dry. The climate is of a desert type with low annual rainfall and low relative humidity.

July is the hottest month in Phoenix with an average temperature of 33°C (91°F) and the coldest is January at 12°C (54°F) with the most daily sunshine hours at 14 in June. The wettest month is August with an average of 32mm of rain..

By August the summer heat begins to moderate slightly, but humidities are higher than in July. This makes many residents feel that it is much hotter than it really is. Actually, the average high temperature is 103.7 or 2.2 degrees lower than in July.