United States · 30-year monthly climate averages
Based on 30 years of climate data, the most comfortable months to visit Phoenix are February, March and November, when daytime temperatures are agreeable and rainfall is relatively low.
Phoenix sees its warmest weather in July, when daytime highs average around 41°C, and its coolest in December (around 19°C).
Annual precipitation totals roughly 184mm — August is typically the wettest month (~24mm) and June the driest (~1mm).
Rainfall is spread fairly evenly through the year, so no single season is dramatically wetter than the rest.
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
Daily forecast highs vs the 30-year normal — last 60 days
Each bar is one day: orange above normal, blue below.
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 20° / 8°C | 22mm | 🌟 Great |
| February | 22° / 10°C | 22mm | 🌟 Great |
| March | 26° / 13°C | 21mm | 🌟 Great |
| April | 30° / 16°C | 6mm | 🌟 Great |
| May | 35° / 21°C | 3mm | 👍 Good |
| June | 40° / 26°C | 1mm | 👍 Good |
| July | 41° / 29°C | 23mm | 🤔 Fair |
| August | 41° / 29°C | 24mm | 🤔 Fair |
| September | 38° / 26°C | 15mm | 🤔 Fair |
| October | 32° / 19°C | 14mm | 👍 Good |
| November | 25° / 12°C | 15mm | 🌟 Great |
| December | 19° / 7°C | 19mm | 🌟 Great |
January in Phoenix is pleasantly warm, with average daytime highs around 20°C (68°F) and nighttime lows near 8°C (46°F). Expect roughly 22mm of precipitation spread over about 3 rainy days, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes
February in Phoenix is pleasantly warm, with average daytime highs around 22°C (71°F) and nighttime lows near 10°C (49°F). Expect roughly 22mm of precipitation spread over about 3 rainy days, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes
March in Phoenix is warm, with average daytime highs around 26°C (78°F) and nighttime lows near 13°C (55°F). Expect roughly 21mm of precipitation spread over about 2 rainy days, with little rainfall.
🎒 What to pack — light summer clothing · sunscreen and sunglasses
April in Phoenix is warm, with average daytime highs around 30°C (85°F) and nighttime lows near 16°C (61°F). Expect roughly 6mm of precipitation spread over about 1 rainy days, and rain is rare.
🎒 What to pack — light summer clothing · sunscreen and sunglasses
May in Phoenix is hot, with average daytime highs around 35°C (94°F) and nighttime lows near 21°C (69°F). Expect roughly 3mm of precipitation spread over about 1 rainy days, and rain is rare.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle
June in Phoenix is extremely hot, with average daytime highs around 40°C (104°F) and nighttime lows near 26°C (79°F). Expect roughly 1mm of precipitation spread over about 0 rainy days, and rain is rare.
🎒 What to pack — very light, loose clothing · high-SPF sunscreen and a sun hat · plan activities for early morning or evening
July in Phoenix is extremely hot, with average daytime highs around 41°C (107°F) and nighttime lows near 29°C (84°F). Expect roughly 23mm of precipitation spread over about 3 rainy days, with little rainfall.
🎒 What to pack — very light, loose clothing · high-SPF sunscreen and a sun hat · plan activities for early morning or evening
August in Phoenix is extremely hot, with average daytime highs around 41°C (105°F) and nighttime lows near 29°C (84°F). Expect roughly 24mm of precipitation spread over about 3 rainy days, with little rainfall.
🎒 What to pack — very light, loose clothing · high-SPF sunscreen and a sun hat · plan activities for early morning or evening
September in Phoenix is extremely hot, with average daytime highs around 38°C (100°F) and nighttime lows near 26°C (78°F). Expect roughly 15mm of precipitation spread over about 2 rainy days, and rain is rare.
🎒 What to pack — very light, loose clothing · high-SPF sunscreen and a sun hat · plan activities for early morning or evening
October in Phoenix is hot, with average daytime highs around 32°C (89°F) and nighttime lows near 19°C (66°F). Expect roughly 14mm of precipitation spread over about 2 rainy days, and rain is rare.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle
November in Phoenix is pleasantly warm, with average daytime highs around 25°C (76°F) and nighttime lows near 12°C (54°F). Expect roughly 15mm of precipitation spread over about 2 rainy days, and rain is rare.
🎒 What to pack — light layers · comfortable walking shoes
December in Phoenix is pleasantly warm, with average daytime highs around 19°C (66°F) and nighttime lows near 7°C (45°F). Expect roughly 19mm of precipitation spread over about 3 rainy days, and rain is rare.
🎒 What to pack — light layers · comfortable walking shoes