Phoenix weather by month
Phoenix, Arizona is famous for its scorching summers and surprisingly mild winters. Whether you’re a local looking to beat the heat or a visitor planning a trip, knowing what to expect each month can help you dress appropriately, plan activities, and make the most of the city’s unique climate. This guide breaks down Phoenix’s weather month‑by‑month, lists average temperatures, precipitation, and humidity, and offers practical tips for coping with the desert environment.
Monthly Weather Overview
| Month | Avg High (°F) | Avg Low (°F) | Avg Precipitation (in) | Avg Humidity (%) |
|---|---|---|---|---|
| January | 56 | 34 | 0.23 | 47 |
| February | 62 | 39 | 0.36 | 49 |
| March | 72 | 48 | 0.26 | 52 |
| April | 84 | 57 | 0.14 | 53 |
| May | 97 | 66 | 0.12 | 50 |
| June | 113 | 73 | 0.03 | 48 |
| July | 120 | 78 | 0.02 | 45 |
| August | 123 | 81 | 0.04 | 44 |
| September | 112 | 73 | 0.12 | 48 |
| October | 98 | 61 | 0.19 | 52 |
| November | 78 | 47 | 0.33 | 51 |
| December | 58 | 35 | 0.23 | 48 |
Note: These figures are averages based on long‑term data. Daily temperatures can vary widely, so always check the forecast if you’re planning an outdoor activity.
January in Phoenix
- Average High: 56 °F
- Average Low: 34 °F
- Precipitation: Little rain, but occasional snowflakes in the higher elevations.
Winter in Phoenix is mild and dry. It’s a good time to explore the Grand Canyon or enjoy a sunset in the dunes without the oppressive humidity of summer.
February in Phoenix
- Average High: 62 °F
- Average Low: 39 °F
- Precipitation: Slightly higher than January, still mostly dry.
February brings the first hints of warmer weather. The evenings can feel cooler, so layer up if you plan an evening stroll.
March in Phoenix
- Average High: 72 °F
- Average Low: 48 °F
- Precipitation: Spring showers start to appear.
This is a great month for hiking and water‑park trips, as temperatures are comfortable and rainfall is minimal.
April in Phoenix
- Average High: 84 °F
- Average Low: 57 °F
- Precipitation: Very low, making it a dry sunny period.
April’s warmth is ideal for golf and outdoor markets. Dawn and dusk are cooler, great for photos.
May in Phoenix
- Average High: 97 °F
- Average Low: 66 °F
- Precipitation: Minimal, but heat can feel intense.
May is the start of the hottest season. Early morning or evening activities are recommended to avoid peak heat.
June in Phoenix
- Average High: 113 °F
- Average Low: 73 °F
- Precipitation: Almost none.
The days are scorching. This is a prime time for water activities and indoor events.
July in Phoenix
- Average High: 120 °F
- Average Low: 78 °F
- Precipitation: Rare.
July is the hottest month in Phoenix. Stay hydrated, apply sunscreen, and seek shade during midday.
August in Phoenix
- Average High: 123 °F
- Average Low: 81 °F
- Precipitation: Slight increase in dew points.
The sun is relentless. Plan indoor activities and keep cool with AC or sea‑side views.
September in Phoenix
- Average High: 112 °F
- Average Low: 73 °F
- Precipitation: Some rare showers.
Heat begins to recede, especially at night. It’s a peak tourist season for the desert.
October in Phoenix
- Average High: 98 °F
- Average Low: 61 °F
- Precipitation: More rainfall, but still moderate.
October cools down considerably, making it perfect for exploring historic sites and desert trails.
November in Phoenix
- Average High: 78 °F
- Average Low: 47 °F
- Precipitation: Increased precipitation, especially in the monsoon season.
Late November can bring sudden thunderstorms. Protective gear for hiking is advisable.
December in Phoenix
- Average High: 58 °F
- Average Low: 35 °F
- Precipitation: Similar to January, with cold snaps possible.
Even winter in Phoenix remains pleasant compared to northern climates. Ideal for relaxed city tours and enjoying outdoor cafés.
FAQ
Q1: What is the best time of year to visit Phoenix for outdoor activities?
A1: Spring (March – April) and early fall (September – October) offer comfortable temperatures and minimal rainfall.
Q2: How do I stay cool during Phoenix’s hottest months?
A2: Use light, breathable clothing, apply sunscreen, stay hydrated, and schedule outdoor plans for early morning or late afternoon.
Q3: Is there much rainfall in Phoenix?
A3: Yes, the monsoon season (late June – July) can bring sudden, brief storms, but overall precipitation is low.
Q4: Are there temperatures that can drop below freezing in Phoenix?
A4: Rarely, but nighttime lows can dip close to or below 30°F in winter. Always check forecasts.
Q5: When is the monsoon season, and how does it affect weather?
A5: The monsoon season typically runs from late June through early July, bringing increased humidity, afternoon thunderstorms, and a brief drop in temperatures.
Resources
- National Weather Service – Phoenix Office: [weather.gov]
- Arizona State Climate Office: [arizona.gov/climate]
- The Climate Data Guide – Phoenix, AZ: [climatedata.org]
- National Geographic – Desert Climate: [nationalgeographic.com]
- Arizona Department of Tourism – Weather & Climate: [arizonatourism.gov]
Use these links for detailed forecasts, historical climate data, and travel tips tailored to Phoenix’s unique desert environment.
