Phoenix Weather in January
Thinking of visiting Phoenix in January? Expect pleasant temperatures reaching 20°C (68°F) during the day, dropping to 6°C (43°F) at night, with some rainfall likely.
Rainfall in Phoenix in January
You can expect rain on around 3 days based on historical patterns, with 21 mm (0.8 in) average for the month. Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.
Temperature in Phoenix in January
January is a perfect month in Phoenix, with 20°C (68°F) during the day and 6°C (43°F) at night. January is known for being in the winter season. The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 6°C (43°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Phoenix in January
Enjoy a sunny month with about 256 hours of sunshine, the clear skies make Phoenix even more beautiful.If you're a fan of comfortable temperatures and drier conditions, January is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Phoenix's climate page.
Phoenix Temperature in January
Min Temperature
6°C (43°F)
Max Temperature
20°C (68°F)
Chance of Rain
10%
Precipitation
21 mm (0.8 in)
Rainy days
3 days
Humidity
50%
Sunshine
256 hours
Percentage Sunshine
81%
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Phoenix typically stay consistent throughout January, with daily highs averaging around 20°C (68°F). Nights are cold, with lows typically ranging from 7°C (45°F) to 9°C (48°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Phoenix in January
Browse day-by-day weather records for Phoenix spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Phoenix historical weather extremes in January
Based on 49 years of weather observations in Phoenix between 1976 and 2025, these are the recorded extremes.
- On January 31, 2003, temperatures climbed to 29°C (84°F), marking the warmest January day on record.
- Phoenix experienced its chilliest January day on January 14, 2013, reaching only 7°C (45°F).
- Phoenix registered its coldest January night on January 2, 1976, with temperatures dropping to -3°C (27°F).
Best Places in the United States of America in January
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in January →
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What to Wear in Phoenix in January
For Phoenix in January, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Some rain is possible, so pack something to handle light showers. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Phoenix in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Phoenix's climate page.
Temperature Rainfall Sunshine Humidity
See the full Phoenix climate overview or explore weather in the United States of America.
