| Phoenix, Arizona, is characterized by a hot desert climate, receiving more annual sunshine (roughly 300 days) than any other major city on Earth. The weather is generally divided into two extremes: scorching, long summers and mild, pleasant winters. Seasonal Overview Summer (June–September): Extremely hot with daily highs regularly exceeding 100°F–110°F (38°C–43°C). Outdoor activities are typically restricted to the very early morning or after sunset. Winter (December–February): Mild and dry with daytime highs in the 60s to low 70s (18°C–24°C) and nights cooling to the 40s (4°C–9°C). Frost is rare, and snow is virtually nonexistent in the city. Spring/Fall (Shoulder Seasons): These are considered the "perfect" months, with highs ranging from the 70s to 90s (21°C–35°C). Spring (March–April) often features desert wildflower blooms, while Fall (October–November) offers relief from summer heat. Essential Weather Facts Monsoon Season: From June 15 to September 30, Phoenix experiences its monsoon season, which can bring sudden thunderstorms, heavy downpours, and dramatic dust storms known as haboobs. Dry Heat vs. Humidity: While most of the year features a "dry heat" that aids evaporation, humidity rises significantly during the summer monsoon, which can increase the perceived temperature. Rainfall: Total annual rainfall is low, averaging about 8 inches. Precipitation is split between winter storms and summer monsoon bursts. Sun Safety: UV levels are high year-round. Protection like sunscreen and hats are essential, even in winter. Current Conditions (As of January 22, 2026) As of late January 2026, Phoenix is currently experiencing a mild winter pattern. Immediate Forecast: Highs are near 73°F with partly sunny skies. Upcoming Change: A low-pressure system is expected to arrive tomorrow, January 23, 2026, bringing light rain chances (20–50%) and cooler highs in the mid-60s through the weekend. |