January weather forecast
Arizona, USA

January is one of the chillier months in Arizona, setting the tone for the state's winter. The climate can vary greatly depending on the region. In the southern desert areas, daytime temperatures are relatively mild, hovering between 65°F (18.3°C) and 75°F (23.9°C). However, nights can be cold, with temperatures frequently dropping close to or below freezing.

The northern highlands and mountainous regions, particularly around cities like Flagstaff, face much colder conditions. Here, temperatures can fall well below 32°F (0°C), and the mercury can even touch 0°F (-17.8°C) during exceptionally cold spells. It is in these regions that the state sees most of its snowfall, with accumulation sometimes reaching up to 20" (508mm) in January alone. This contrasts sharply with the southern regions, which see little to no snow.

Compared to December, January is a tad colder, especially during the nights, but not by a significant margin. However, when looking ahead to February, while the overall chill remains, the conditions tend to be slightly milder, hinting at the approaching spring.

Cities like Phoenix, situated in the southern part of the state, enjoy mild days but still require warmer attire as temperatures drop in the evening. Conversely, Flagstaff, in the northern part, is a hub for winter sports enthusiasts during this month due to its colder climate and consistent snowfall.

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• Phoenix - January »
  In Phoenix snow does not fall in January through August, October through December. In Phoenix, snow does not fall in January through August, October through December.
• Tucson - January »
  The month with the most snowfall in Tucson is January, when snow falls for 0.2 days and typically aggregates up to 0.08" (2mm) of snow. A discernible characteristic of Tucson's weather in January is that it is the coldest month with the least amount of daylight hours, amounting to 10.3 hours.
• Mesa - January »
  In Mesa, Arizona, during January, the rain falls for 4.8 days and regularly aggregates up to 0.71" (18mm) of precipitation. In Mesa during January, the rain falls for 4.8 days and regularly aggregates up to 0.71" (18mm) of precipitation.
• Chandler - January »
  In Chandler in January, during 4.8 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. In Chandler, in January, it is raining for 4.8 days, with typically 0.67" (17mm) of accumulated precipitation.
• Scottsdale - January »
  On the first day of January in Scottsdale sunrise is at 7:31 am and sunset at 5:30 pm. In Scottsdale, in January, it is raining for 4.3 days, with typically 0.59" (15mm) of accumulated precipitation.
• Glendale - January »
  On the first day of January in Glendale, sunrise is at 7:32 am and sunset at 5:31 pm. In Glendale, Arizona, in January, it is raining for 4 days, with typically 0.67" (17mm) of accumulated precipitation.
• Gilbert - January »
  January in Gilbert, Arizona, boasts cool but comfortable weather, with plenty of daylight hours for residents and visitors to enjoy outdoor activities. In Gilbert during January, the rain falls for 4.8 days and regularly aggregates up to 0.71" (18mm) of precipitation.
• Tempe - January »
  In Tempe, in January, during 4.3 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. January is considered the coldest month in Tempe, Arizona, with temperatures ranging from 46.9°F (8.3°C) to 64°F (17.8°C).
• Peoria - January »
  January in Peoria, Arizona, welcomes an average high-temperature of a still enjoyable 63.7°F (17.6°C), not much different from the preceding month. In Peoria, in January, it is raining for 4 days, with typically 0.67" (17mm) of accumulated precipitation.
• Surprise - January »
  On the first day of January in Surprise sunrise is at 7:33 am and sunset at 5:32 pm. On the last day of January, in Surprise, sunrise is at 7:26 am and sunset at 5:59 pm MST.
• Yuma - January »
  In Yuma during January, the rain falls for 2.5 days and regularly aggregates up to 0.2" (5mm) of precipitation. On the first day of January in Yuma, sunrise is at 7:40 am and sunset at 5:43 pm.