December weather forecast and climate
Irvine, CA

Average temperature in December - Irvine, CA
  • Average high temperature in December: 67.1°F

The warmest month (with the highest average high temperature) is August (90.3°F).
The month with the lowest average high temperature is December (67.1°F).

  • Average low temperature in December: 45.6°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is December (45.6°F).

Average rainfall in December - Irvine, CA
  • Average rainfall in December: 2.4"

The wettest month (with the highest rainfall) is February (3.3").
Driest months (with the lowest rainfall) are June, July and August (0.1").

Average daylight in December - Irvine, CA
  • Average daylight in December: 9.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

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