March through April and October through November. Visit Phoenix (official DMO) identifies these shoulder periods as ideal for outdoor activities with blue skies and highs in the upper 60s to mid-80s°F, avoiding both the intense summer heat (110°F+) and peak winter-season crowds. Spring also coincides with desert wildflower blooms and Cactus League baseball
| Month | High (°F) | Low (°F) | Notes |
|---|---|---|---|
| Jan | 67 | 41 | mild & sunny |
| Feb | 70 | 44 | mild & sunny |
| Mar | 79 | 50 | warm & sunny |
| Apr | 88 | 58 | hot & sunny |
| May | 95 | 67 | hot & sunny |
| Jun | 105 | 77 | hot & sunny |
| Jul | 107 | 84 | hot & mostly dry |
| Aug | 105 | 82 | hot & sunny |
| Sep | 100 | 75 | hot & sunny |
| Oct | 89 | 62 | hot & sunny |
| Nov | 77 | 51 | warm & sunny |
| Dec | 66 | 42 | mild & mostly dry |