Climate Chart of Phoenix, USA
Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023
For Phoenix, USA, the climate data describe 2013–2023. The monthly mean temperature ranges from January at 11.9 °C to July at 35.2 °C, while mean daily rainfall remains below 1.63 mm/day even in its wettest month, July. Together, these figures give a broad picture of warm conditions and low average rainfall, but monthly means do not describe the weather on any particular day.
Climate overview
Temperature
Monthly mean temperatures are coolest in January, at 11.9 °C, and warmest in July, at 35.2 °C. These are averages for each month, not daytime highs, so they cannot show how hot or cool an individual day may feel. Across the calendar-month means, the unweighted mean is 23.7 °C. It offers a compact annual reference, rather than a day-weighted average or a description of temperature changes within a month.
Rain
Mean daily rainfall is lowest in May, at 0.09 mm/day; visitors prioritising lower average rainfall could consider this as a conditional option. The wettest monthly mean is in July, at 1.63 mm/day, so planning for possible rain is still sensible then. These daily averages are not monthly totals and do not indicate how often rain falls or guarantee dry days. The unweighted mean of the monthly daily-rainfall averages is 0.78 mm/day. It summarizes the monthly means, but does not establish the amount or timing of rainfall on a particular visit.
Sunshine
Mean daily sunshine reaches its highest monthly value in June, at 12.87 hours/day, and its lowest in December, at 7.98 hours/day. These figures can help with planning outdoor time, but sunshine duration is not the same as day length or a guarantee of clear skies. The unweighted mean of the monthly daily-sunshine averages is 10.58 hours/day. It provides an annual reference while leaving month-to-month and day-to-day conditions distinct.
Best Travel Time Guide for Phoenix, USA: Ideal Seasons and Weather Insights
For cooler monthly-average conditions, consider January, when the monthly mean temperature is 11.9 °C; this does not predict the temperature on each day, so check conditions close to travel. If lower average rainfall is your priority, May is a conditional option, with mean daily rainfall of 0.09 mm/day, not a promise of rain-free sightseeing. For outdoor plans, June has the highest mean daily sunshine at 12.87 hours/day, while December has the lowest at 7.98 hours/day; sunshine duration does not establish day length or guarantee clear weather. Prepare for possible rain in July, whose mean daily rainfall is 1.63 mm/day. The averages describe broad monthly patterns, not rain frequency or the conditions of any particular day.
Climate Data Overview for Phoenix, USA
Explore the comprehensive climate data for Phoenix, USA. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.
| Month | Average: Temperature °C | Rain (mm) / day | Snow (mm) / day | Sunshine (h) / day |
|---|---|---|---|---|
| Jan | 11.9 | 0.98 | 0.00 | 8.35 |
| Feb | 14.2 | 0.82 | 0.00 | 9.28 |
| Mar | 18.6 | 0.86 | 0.00 | 10.34 |
| Apr | 23.8 | 0.11 | 0.00 | 11.85 |
| May | 27.7 | 0.09 | 0.00 | 12.73 |
| Jun | 33.9 | 0.14 | 0.00 | 12.87 |
| Jul | 35.2 | 1.63 | 0.00 | 11.98 |
| Aug | 34.1 | 1.18 | 0.00 | 11.71 |
| Sep | 31.0 | 1.01 | 0.00 | 10.80 |
| Oct | 24.5 | 0.77 | 0.00 | 10.11 |
| Nov | 17.8 | 0.64 | 0.00 | 9.01 |
| Dec | 12.1 | 1.13 | 0.00 | 7.98 |
| Average | 23.7 | 0.78 | 0.00 | 10.58 |
