Arroyo Grande
California, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Arroyo Grande, CA

December, the first month of the winter, in Arroyo Grande, is also a moderate month, with average temperature fluctuating between 44.1°F (6.7°C) and 60.1°F (15.6°C).

Temperature

January and December, with an average high-temperature of 60.1°F (15.6°C), are the coldest months.

Daylight

December has the shortest days of the year in Arroyo Grande, with an average of 9.8h of daylight.

What are the coldest months in Arroyo Grande?

The coldest months in Arroyo Grande, California, are January and December, with an average high-temperature of 60.1°F (15.6°C).

What is the temperature in December in Arroyo Grande?

In Arroyo Grande, California, in December, the average high-temperature is 60.1°F (15.6°C), and the average low-temperature is 44.1°F (6.7°C).

What is the month with the shortest days in Arroyo Grande?

With an average of 9.8h of daylight, December has the shortest days of the year in Arroyo Grande, California.

What is the average length of the day in December in Arroyo Grande?

In Arroyo Grande, California, the average length of the day in December is 9.8h.
Average temperature in December - Arroyo Grande, CA
  • Average high temperature in December: 60°F

The warmest month (with the highest average high temperature) is September (68°F).
Months with the lowest average high temperature are January and December (60°F).

  • Average low temperature in December: 44°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (44°F).

Average daylight in December - Arroyo Grande, CA
  • Average daylight in December: 9.8h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).