City in Arizona, United States
Phoenix weather by month and the best time to visit
When to go to Phoenix
Nov–Apr is warm and dry; Feb–Apr is peak with spring training baseball. Jun–Sep is 40–46°C; monsoon storms and dust storms hit Jul–Sep.
Phoenix weather by month
Average daily high, rainfall and conditions.
- Jan19°33 mm
- Feb21°32 mm
- Mar26°21 mm
- Apr30°8 mm
- May35°6 mm
- Jun42°2 mm
- Jul42°33 mm
- Aug40°33 mm
- Sep38°22 mm
- Oct32°14 mm
- Nov25°19 mm
- Dec18°31 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 19°C67°F | 5°C42°F | 33 mm | 46% | Pleasant |
| February | 21°C70°F | 6°C44°F | 32 mm | 44% | Pleasant |
| March | 26°C78°F | 10°C50°F | 21 mm | 38% | Pleasant |
| April | 30°C86°F | 13°C56°F | 8 mm | 29% | Pleasant |
| May | 35°C96°F | 18°C65°F | 6 mm | 22% | Hot |
| June | 42°C107°F | 24°C75°F | 2 mm | 15% | Very hot |
| July | 42°C107°F | 28°C82°F | 33 mm | 30% | Very hot |
| August | 40°C105°F | 27°C81°F | 33 mm | 35% | Very hot |
| September | 38°C101°F | 24°C74°F | 22 mm | 31% | Very hot |
| October | 32°C89°F | 17°C62°F | 14 mm | 30% | Pleasant |
| November | 25°C77°F | 11°C51°F | 19 mm | 34% | Pleasant |
| December | 18°C65°F | 5°C41°F | 31 mm | 45% | Pleasant |
Best months across United States
| Place | Best months | Warmest month |
|---|---|---|
| New York City | Apr–Jun, Sep–Oct | Jul (26°C) |
| Las Vegas | Mar–May, Oct–Nov | Jul (42°C) |
| Los Angeles | Mar–May, Sep–Nov | Aug (32°C) |
| Orlando | Feb–Apr, Nov | May (31°C) |
| Miami | Nov–Apr | Aug (30°C) |
| San Francisco | Apr–May, Sep–Oct | Sep (24°C) |
| Honolulu | Apr–Jun, Sep–Oct | Sep (28°C) |
| Washington, D.C. | Mar–May, Sep–Oct | Jul (31°C) |
| Chicago | May–Jun, Sep–Oct | Jul (25°C) |
| Boston | May–Jun, Sep–Oct | Jul (28°C) |
| New Orleans | Feb–Apr, Oct–Nov | Jul (30°C) |
| San Diego | Apr–May, Sep–Nov | Aug (32°C) |
| Seattle | Jun–Sep | Aug (24°C) |
| Maui | Apr–May, Sep–Oct | Sep (22°C) |
| Nashville | Apr–May, Sep–Oct | Aug (32°C) |
| Austin | Mar–May, Oct–Nov | Aug (36°C) |
| Miami Beach | Nov–Apr | Aug (30°C) |
| Key West | Dec–Apr | Aug (30°C) |
| Denver | May–Jun, Sep–Oct | Jul (33°C) |
| Philadelphia | Apr–May, Sep–Oct | Jul (30°C) |
| Portland | Jun–Sep | Aug (29°C) |
| Atlanta | Mar–May, Oct–Nov | Jul (32°C) |
| San Antonio | Mar–May, Oct–Nov | Aug (36°C) |
| Charleston | Mar–May, Oct–Nov | Jul (32°C) |
| Savannah | Mar–May, Oct–Nov | Jul (33°C) |
| Fort Lauderdale | Dec–Apr | Aug (30°C) |
| Kauai | Apr–Jun, Sep–Oct | Sep (27°C) |
| Big Island | Apr–Jun, Sep–Oct | Aug (26°C) |
| Sedona | Mar–May, Sep–Nov | Jul (35°C) |
| Phoenix | Feb–Apr, Nov–Dec | Jul (42°C) |
Quick answers
What is the best month to visit Phoenix?
Feb–Apr, Nov–Dec. Nov–Apr is warm and dry; Feb–Apr is peak with spring training baseball. Jun–Sep is 40–46°C; monsoon storms and dust storms hit Jul–Sep.
When is the rainy season in Phoenix?
Rain peaks in January with about 33 mm. No month averages 150 mm or more.
What is the hottest month in Phoenix?
July, with average highs of 42°C (107°F).
How cold does Phoenix get?
The coolest nights are in December, averaging 5°C (41°F).
More about Phoenix
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Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Temperatures are adjusted by 0.8°C for the city's elevation. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.