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

August weather forecast and Climate
Gilbert, AZ

August is a hot summer month in Gilbert with little relief from the blazing sun. The 1.1" (27.9mm) of rainfall is moderate for the arid climate with an occasional thunderstorm. The average temperatures register in the range of 76°F (24.4°C) to 104°F (40°C) as most days touch 105°F (40.6°C) and a few even 110°F (43.3°C).
The humidity of 50% is amongst the highest of the year with cloudy skies alternating with bright ones and mid-August tends to be the muggiest period of the year. August heat is bearable in light summer clothes and the temperatures cool down quickly in the evenings.
  • The average high temperature in August: 40.6°C

The warmest month (with the highest average high temperature) is July (41.7°C).
Months with the lowest average high temperature are January and December (19.4°C).

  • The average low temperature in August: 24.4°C

The month with the highest average low temperature is July (25°C).
The coldest month (with the lowest average low temperature) is December (4.4°C).

  • The average rainfall in August: 29mm

The wettest month (with the highest rainfall) is March (30.2mm).
The driest month (with the lowest rainfall) is June (1mm).

  • The average daylight in August: 13.5h

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