Arizona Weather by Month
Arizona, located in the southwestern United States, is known for its diverse climate and dramatic landscapes, ranging from arid deserts to snow-capped mountains. The state experiences a wide range of temperatures and weather patterns due to its varying elevations. Southern Arizona, including cities like Phoenix and Tucson, is characterized by a hot desert climate with scorching summers and mild winters. In contrast, northern Arizona, home to the Grand Canyon and Flagstaff, features a more temperate climate with cooler summers and cold, snowy winters. Arizona also experiences a unique monsoon season from July to September, bringing short but intense thunderstorms that can lead to flash flooding, especially in desert areas. Despite its arid reputation, Arizona’s climate is diverse enough to support a variety of outdoor activities year-round, from hiking in the Sonoran Desert to skiing in the high country. The state’s vast natural beauty, including iconic landmarks like the Grand Canyon, Sedona’s red rocks, and the saguaro-filled landscapes of the Sonoran Desert, make it a popular destination for tourists and outdoor enthusiasts alike.
Average Temperature and Precipitation by Month
| Month | Avg Temp (°F) | Avg Temp (°C) | Avg Precipitation (inches) |
|---|---|---|---|
| January | 52°F | 11°C | 1.1 |
| February | 55°F | 13°C | 1.1 |
| March | 61°F | 16°C | 1.0 |
| April | 68°F | 20°C | 0.5 |
| May | 76°F | 24°C | 0.2 |
| June | 85°F | 29°C | 0.1 |
| July | 90°F | 32°C | 1.4 |
| August | 88°F | 31°C | 1.4 |
| September | 83°F | 28°C | 1.2 |
| October | 72°F | 22°C | 0.7 |
| November | 60°F | 16°C | 0.7 |
| December | 52°F | 11°C | 1.1 |
Monthly Weather, Clothing, and Landmarks
January
Weather: January is one of the cooler months in Arizona, with average temperatures ranging from 35°F to 65°F (2°C to 18°C) depending on the region. In southern Arizona, such as Phoenix, the weather is mild and sunny, making it an ideal time for outdoor activities. Northern Arizona, including Flagstaff, experiences colder temperatures, often below freezing at night, with occasional snowfall.
Clothing: In southern Arizona, light layers are usually sufficient, including a long-sleeved shirt and a light jacket for the cooler mornings and evenings. In northern Arizona, especially around Flagstaff, warmer clothing is necessary, including a heavy coat, gloves, and possibly a hat for those venturing out at night or in snowy conditions.
Landmarks: January is an excellent time to visit the Sonoran Desert, where the mild temperatures make hiking and exploring more comfortable. Popular destinations include Saguaro National Park near Tucson and the Desert Botanical Garden in Phoenix. For those interested in winter sports, the Snowbowl near Flagstaff offers skiing and snowboarding with stunning views of the surrounding mountains.
February
Weather: February in Arizona is similar to January, with mild temperatures in the southern regions and colder, snowier conditions in the north. Average temperatures range from 38°F to 68°F (3°C to 20°C). Southern Arizona continues to enjoy pleasant, sunny days, while northern areas may still experience snowfall.
Clothing: Light layers, including a sweater or light jacket, are ideal for southern Arizona. In northern Arizona, particularly in areas like the Grand Canyon and Flagstaff, warmer clothing is necessary, including insulated jackets, gloves, and possibly snow boots for outdoor activities.
Landmarks: February is a great month to visit the Grand Canyon, as the cooler temperatures make hiking and exploring more enjoyable, and the winter snow adds a picturesque element to the already stunning views. Additionally, the Arizona-Sonora Desert Museum in Tucson offers a comprehensive look at the desert’s flora and fauna, best explored in the cooler winter months.
March
Weather: March signals the arrival of spring in Arizona, with temperatures rising across the state. Average temperatures range from 45°F to 75°F (7°C to 24°C). Southern Arizona experiences warm, pleasant days, while the northern regions begin to thaw, with snow still lingering in higher elevations.
Clothing: Light clothing, such as t-shirts and light jackets, is appropriate for southern Arizona, while northern areas may still require warmer layers in the mornings and evenings. Comfortable walking shoes are recommended for those planning outdoor activities.
Landmarks: March is an ideal time to visit Sedona, where the red rock formations are bathed in spring sunlight, creating breathtaking views. The warmer temperatures also make it a perfect time for hiking in the Superstition Mountains east of Phoenix, where you can explore the rugged terrain and possibly catch a glimpse of blooming wildflowers.
April
Weather: April is one of the most pleasant months in Arizona, with temperatures ranging from 50°F to 85°F (10°C to 29°C). Southern Arizona enjoys warm, sunny days, perfect for outdoor activities. Northern Arizona sees the last of the snow melt, with comfortable temperatures ideal for exploring the natural beauty of the region.
Clothing: Lightweight clothing, including shorts, t-shirts, and a light jacket for the evenings, is suitable for southern Arizona. In northern regions, a sweater or light jacket may still be necessary, particularly in the mornings and evenings.
Landmarks: April is a great time to explore the Grand Canyon’s South Rim, where the temperatures are perfect for hiking and the crowds are still manageable before the summer rush. Another recommended destination is Antelope Canyon near Page, where the stunning slot canyons are illuminated by the spring sunlight, creating incredible photo opportunities.
May
Weather: May marks the beginning of the hot season in southern Arizona, with temperatures climbing to between 60°F and 95°F (16°C to 35°C). Northern Arizona remains cooler, with temperatures ranging from 55°F to 75°F (13°C to 24°C), making it an excellent time to visit before the summer heat sets in.
Clothing: In southern Arizona, lightweight, breathable clothing, such as shorts, tank tops, and hats, is essential to stay cool. In the northern regions, light layers are still recommended for cooler mornings and evenings, but daytime temperatures generally require only a light jacket or sweater.
Landmarks: May is a perfect time to visit Monument Valley, where the iconic sandstone formations stand against a backdrop of clear blue skies. For those looking to escape the heat, the cool forests of Flagstaff offer hiking trails and scenic drives, with spring flowers beginning to bloom.
June
Weather: June is the hottest month in southern Arizona, with temperatures soaring to between 75°F and 105°F (24°C to 40°C). Northern Arizona, including areas like Flagstaff and the Grand Canyon, experiences milder temperatures, ranging from 60°F to 85°F (16°C to 29°C), making it a popular escape from the desert heat.
Clothing: In southern Arizona, wear lightweight, moisture-wicking clothing, such as shorts, tank tops, and wide-brimmed hats, and apply sunscreen regularly. In northern Arizona, lighter clothing is sufficient during the day, but a light jacket may still be needed for cooler evenings.
Landmarks: June is an ideal time to visit the cooler regions of northern Arizona, including the Grand Canyon, where temperatures are comfortable for hiking and exploring. Lake Powell, on the Arizona-Utah border, is another popular destination, offering boating, fishing, and stunning red rock scenery.
July
Weather: July is marked by extreme heat in southern Arizona, with temperatures often exceeding 100°F (38°C). Northern Arizona, however, enjoys milder conditions, with temperatures ranging from 65°F to 90°F (18°C to 32°C). July also marks the beginning of the monsoon season, bringing brief but intense afternoon thunderstorms.
Clothing: In southern Arizona, dress in the lightest, most breathable clothing available, such as shorts, tank tops, and sandals. A hat and sunglasses are essential, and sunscreen is a must. For northern Arizona, light layers are still appropriate, and rain gear may be needed during monsoon storms.
Landmarks: July is a great time to visit the cooler high-altitude destinations in northern Arizona, such as the Mogollon Rim, where you can enjoy scenic views and forested trails. In southern Arizona, the monsoon season transforms the desert, making it a unique time to explore areas like Sabino Canyon near Tucson, where waterfalls and streams appear in the normally dry landscape.
August
Weather: August continues the hot trend in southern Arizona, with temperatures remaining above 100°F (38°C). The monsoon season is in full swing, bringing frequent thunderstorms and brief cooling periods. Northern Arizona sees slightly cooler temperatures, with averages between 60°F and 85°F (16°C to 29°C).
Clothing: Lightweight, moisture-wicking clothing is necessary in southern Arizona. In northern areas, light clothing is suitable, but it’s also advisable to carry rain gear due to the monsoon rains. A light jacket might be needed for cooler mornings or evenings.
Landmarks: August is an excellent time to visit the Petrified Forest National Park, where the monsoon rains can bring out vibrant colors in the petrified wood and the Painted Desert. Another great destination is Jerome, a historic mining town perched on the side of Cleopatra Hill, offering cooler temperatures and a fascinating glimpse into Arizona’s past.
September
Weather: September brings a gradual cooling in southern Arizona, with temperatures dropping to between 70°F and 95°F (21°C to 35°C). The monsoon season typically ends this month, leading to clearer skies. Northern Arizona sees even cooler temperatures, ranging from 55°F to 80°F (13°C to 27°C), with the first hints of fall color appearing in the higher elevations.
Clothing: In southern Arizona, lightweight clothing is still recommended, though you might need a light jacket or sweater for the cooler evenings. In northern Arizona, layers are essential, especially if you’re planning to explore higher elevations where temperatures can vary significantly.
Landmarks: September is a wonderful time to visit the Verde Valley, including Sedona and Oak Creek Canyon, where the cooler temperatures make for comfortable hiking and the first signs of fall appear. The North Rim of the Grand Canyon also begins to see fewer crowds, offering a more peaceful experience of this natural wonder.
October
Weather: October is one of the most pleasant months in Arizona, with temperatures ranging from 60°F to 85°F (16°C to 29°C) in southern regions and 45°F to 70°F (7°C to 21°C) in northern areas. The weather is typically dry and sunny, making it perfect for outdoor activities.
Clothing: Light layers are ideal for October in southern Arizona, where the days are warm but evenings can be cool. In northern Arizona, you’ll need a jacket or sweater, especially in the mornings and evenings. Comfortable walking shoes are a must for exploring outdoor sites.
Landmarks: October is a prime time to visit the Arizona Wine Country in the Verde Valley, where you can enjoy tastings and tours in a beautiful autumn setting. Another top destination is the Chiricahua National Monument, where cooler temperatures make hiking through the park’s stunning rock formations a pleasant experience.
November
Weather: November sees cooler temperatures across Arizona, with southern regions ranging from 50°F to 75°F (10°C to 24°C) and northern areas experiencing temperatures between 35°F and 60°F (2°C to 16°C). The weather is generally dry and sunny, though the higher elevations may see the first snowfall of the season.
Clothing: In southern Arizona, light layers are still sufficient, but a warmer jacket may be needed in the evenings. In northern Arizona, especially around Flagstaff and the Grand Canyon, you’ll need warmer clothing, including a coat, gloves, and possibly a hat for those colder days.
Landmarks: November is a fantastic time to visit Tucson and explore the Saguaro National Park, where the cooler temperatures make for comfortable hiking among the towering saguaro cacti. The Red Rock State Park in Sedona is another great option, where the fall foliage adds a splash of color to the iconic red rock landscape.
December
Weather: December brings cooler temperatures and winter conditions to Arizona, with southern regions experiencing temperatures between 40°F and 65°F (4°C to 18°C). Northern Arizona, including Flagstaff and the Grand Canyon, can see temperatures drop to between 25°F and 50°F (-4°C to 10°C), with snowfall becoming more frequent.
Clothing: In southern Arizona, a mix of layers including sweaters, light jackets, and scarves will keep you comfortable. In northern Arizona, especially if visiting areas with snow, you’ll need a heavy coat, gloves, and insulated boots to stay warm during outdoor activities.
Landmarks: December is the perfect time to experience winter in Arizona’s high country. Visit the Grand Canyon’s South Rim, where the snow-dusted cliffs create a breathtaking contrast with the deep blue sky. For a festive experience, head to Prescott, known as “Arizona’s Christmas City,” where you can enjoy holiday lights, parades, and a cozy small-town atmosphere.