Phoenix, AZ weather by month
West · Station: Phoenix Sky Harbor International Airport, AZ · NOAA 1991–2020 Climate Normals
The best time to visit Phoenix, AZ is November, when average daytime highs are comfortable and rainfall sits at or below the city's monthly average. Phoenix is hottest in July (avg high 106°F) and coolest in December (avg high 66°F). The wettest month is January (0.9 in) and the driest is June (0 in). Overall the annual mean temperature is about 75.5°F with 7.2 in of precipitation a year.
Source: NOAA NCEI U.S. Climate Normals 1991–2020. Data as of June 2026.
Monthly weather averages for Phoenix
| Month | Avg high (°F) | Avg low (°F) | Avg precip (in) |
|---|---|---|---|
| January | 68 | 46 | 0.9 |
| February | 71 | 49 | 0.9 |
| March | 78 | 54 | 0.8 |
| April | 86 | 61 | 0.2 |
| May | 94 | 70 | 0.1 |
| June | 104 | 79 | 0 |
| July | 106 | 84 | 0.9 |
| August | 105 | 84 | 0.9 |
| September | 100 | 78 | 0.6 |
| October | 89 | 66 | 0.6 |
| November | 76 | 54 | 0.6 |
| December | 66 | 45 | 0.7 |
Source: NOAA NCEI U.S. Climate Normals 1991–2020. Data as of June 2026.
Best time to visit Phoenix
Based on the normals above, the most pleasant window is November. In those months daytime highs are in the mild-to-warm range and precipitation is no higher than the city's typical month, so you avoid both the peak very hot of July (when highs reach about 106°F — extreme heat — limit midday activity) and the cool, darker conditions around December (highs near 66°F). Use the packing & comfort tool to check any specific month.
How Phoenix compares
Phoenix's 7.2 in of annual precipitation and 75.5°F mean temperature put it in context with other US cities. See where it ranks for warmest in January, rainiest overall and driest overall, or browse the full list of cities.
Frequently asked questions
What is the best time to visit Phoenix?
The most comfortable time to visit Phoenix, AZ is November, when average daytime highs are mild and rainfall is at or below the city's average. Phoenix is hottest in July (avg high 106°F) and coolest in December (avg high 66°F), per NOAA 1991–2020 Climate Normals.
What is the average temperature in Phoenix?
Phoenix's annual mean temperature is about 75.5°F. The warmest month is July (average high 106°F, low 84°F) and the coolest is December (average high 66°F, low 45°F).
How much rain does Phoenix get?
Phoenix receives about 7.2 inches of precipitation a year. The wettest month is January (0.9 in) and the driest is June (0 in).
Source
Monthly averages from the NOAA NCEI U.S. Climate Normals 1991–2020, station Phoenix Sky Harbor International Airport, AZ (reference values verified against the published normals). Climate normals describe a 30-year average, not a forecast; any individual year can differ. See our methodology for how "best time to visit" is derived.
Last updated: 2026-06-18