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 107°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: 2026-07-25. Each reading placed on Phoenix, Arizona, United States's own ±7-day seasonal distribution.
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).
| Month | Avg high | Avg low | Avg 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 | 107°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.
Thinking of visiting Phoenix?
Trips live and die by the weather. See how Phoenix's comfort stacks up against where you live. Phoenix is pre-loaded, just add your city.
Record extremes
- Hottest day on record: 120°F on 1990-06-27
- Coldest day on record: 22°F on 1990-12-25
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 →