Jeans and a T-shirt are comfortable and appropriate attire for most days, but you'll want to add on a sweater or hoodie for those chilly nights. Fall in Phoenix is quite similar to spring, weather-wise. Temperatures are warm and the days are gradually getting longer. Average Monthly Temperature Average Rainfall Average Daylight Hours January 58 degrees Fahrenheit. These powerful storms sometimes have winds in excess of 50 mph and often result in flash-flooding and dust storms. .
You will see average temperatures for the Phoenix area published in various places, and they will vary by a degree or two. Phoenix is pleasant year-round and winter is no exception. While it might be too cold for flip-flops and long days by the pool, temperatures are still plenty warm for outdoor activities like hiking or golf. Days are usually warm and sunny, but not stifling hot like during the summer months. For a desert, Phoenix is also incredibly colorful—you'll spot blooming citrus trees, fig trees, and ocotillo blooming with red flowers. Slightly cooler temperatures may be experienced in the , especially those , with differences being possibly as much as five degrees from the official Phoenix reading.
Nighttime temperatures are a little cooler. Surprising to some visitors, Phoenix does experience a season of occasional very heavy rain, , each year. Temperatures, not surprisingly, hit the triple digits almost every day from June through September, except for the occasional fast-moving thunderstorm. A scarf, albeit not a super heavy one, can always come in useful as a cover-up during colder temperatures. Temperatures are still warm, if not downright hot in September, but gradually cool down to more manageable numbers by the end of November. Arizona's monsoon season typically runs from mid-June through September. Keep in mind that the is monitored at Phoenix Sky Harbor International Airport in downtown Phoenix.
Summer in Phoenix is likely what you expect: Hot, sunny, and best spent indoors under the cover of air-conditioning. Nighttime temperatures get chilly, but true frost and any form of wintry precipitation is rare. What to Pack: Given the large temperature fluctuations during the winter months, layers are crucial to staying comfortable. The days start to get longer and it's a perfect time for hiking. Arizona does not observe Daylight Savings Time, so while the days do get shorter, it does not seem artificial like in other locations. .
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