Thermograph

Phoenix, Arizona, United States climate

Average temperatures, precipitation and all-time records for Phoenix, Arizona, United States, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is July, averaging a high of 106°F, and its coldest is January, with an average low of 43°F.

Phoenix is the capital and most populous city of the U.S. state of Arizona. With over 1.6 million residents at the 2020 census, Phoenix is the fifth-most populous city in the United States and the most populous state capital. via Wikipedia

How today compares

Latest recorded day: 2026-10-12. Each reading placed on Phoenix, Arizona, United States's own ±7-day seasonal distribution.

High 84°F Low · 21st pct
Low 67°F Above Normal · 73rd pct*
Feels-like 83°F Low · 16th pct*
Humidity 12.2 g/m³ Very High · 90th pct
Wind 15 mph Very High · 95th pct
Gust* 28 mph Very High · 93rd pct
Precip 0.00 in Dry

Percentiles marked * are pending verification.

Open Phoenix in the live weather grader →

Notable weather in Phoenix

In July 2023, Phoenix endured a record 31 straight days at or above 110°F during one of the most extreme urban heat waves ever recorded in the U.S. Read more →

Phoenix average temperatures by month

Typical daily high and low, and average precipitation, for each month in Phoenix, Arizona, United States, based on 1980–2026 records. The wettest month is February (0.10 in on an average day).

MonthAvg highAvg lowAvg precip
January 67°F 43°F 0.00 in
February 71°F 47°F 0.10 in
March 78°F 51°F 0.00 in
April 87°F 58°F 0.00 in
May 95°F 67°F 0.00 in
June 105°F 76°F 0.00 in
July 106°F 84°F 0.00 in
August 104°F 82°F 0.10 in
September 100°F 75°F 0.00 in
October 89°F 63°F 0.00 in
November 77°F 51°F 0.00 in
December 66°F 43°F 0.00 in

Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -10°F to 115°F scale, so the whole year's rhythm reads at a glance.

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Record extremes

  • Hottest day on record: 120°F on 1990-06-27
  • Coldest day on record: 22°F on 1990-12-25

All Phoenix weather records →

Percentiles compare each day to Phoenix, Arizona, United States's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →