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

December weather forecast and Climate
Gilbert, AZ

December is usually the coldest month of the year in Gilbert with mild to warm days and cold nights. The average low temperatures are in the 40°F (4.4°C) to 67°F (19.4°C) range but the nights rarely drop below the freezing mark of 32°F (0°C).
The rain is in the form of a few light showers that hardly register more than an inch. The days are sunny and remain mostly below 70°F (21.1°C), as humidity is low. The time around Christmas has warm weather and brings a festive spirit to the populace. Overall, Gilbert is bright, clear, and pleasant in December.
  • The average high temperature in December: 67°F

The warmest month (with the highest average high temperature) is July (107°F).
Months with the lowest average high temperature are January and December (67°F).

  • The 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).

  • The 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").

  • The average daylight in December: 10h

The month with the longest days is June (Average daylight: 14.5h).
Months with shortest days are January and December (Average daylight: 10h).