Arizona, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Mesa, AZ

December is the coldest month of the year in Mesa, with mild days and cold nights; the average low temperatures are in the zone of 39.9°F (4.4°C) to 66.9°F (19.4°C) as the winter season sets in the city. Nights are cold but rarely plummet below freezing.
December experiences a little amount of rain, and the skies remain mostly clear. There is no shortage of sunny days even during the winter, and the humidity remains low.
December is a great time to visit Mesa. Even Christmas is warm, both in the hearts of the populace and the warm sunny weather.
  • Average high temperature in December: 67°F

The warmest month (with the highest average high temperature) is July (106°F).
Months with the lowest average high temperature are January and December (67°F).

  • Average low temperature in December: 40°F

The month with the highest average low temperature is July (77°F).
The coldest month (with the lowest average low temperature) is December (40°F).

  • Average rainfall in December: 1"

The wettest month (with the highest rainfall) is March (1.2").
The driest month (with the lowest rainfall) is June (0.1").

  • Average daylight in December: 10h

The month with the longest days is June (Average daylight: 14.3h).
The month with shortest days is December (Average daylight: 10h).