Arnold
California, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Arnold, CA

The first month of the winter, December, is also a frosty month in Arnold, California, with average temperature ranging between max 46.4°F (8°C) and min 28.4°F (-2°C).

Temperature

In Arnold, the average high-temperature marginally drops, from a cool 53.6°F (12°C) in November, to a frosty 46.4°F (8°C). In Arnold, the average low-temperature is 28.4°F (-2°C).

Rainfall

Throughout December, in Arnold, 9.4" (239mm) of precipitation is accumulated. During the entire year, Arnold aggregates up to 54.4" (1383mm) of precipitation.

Daylight

December has the shortest days of the year in Arnold, with an average of 9.5h of daylight.

What is the temperature in December in Arnold?

The average high-temperature, in December, is 46.4°F (8°C), while the average low-temperature is 28.4°F (-2°C).

How much does it rain in Arnold in December?

In Arnold, California, in December, 9.4" (239mm) of precipitation is typically accumulated.

What is the month with the shortest days in Arnold?

December has the shortest days of the year in Arnold, California, with an average of 9.5h of daylight.

What is the average length of the day in December in Arnold?

In Arnold, the average length of the day in December is 9.5h.
Average temperature in December - Arnold, CA
  • Average high temperature in December: 46.4°F

Warmest months (with the highest average high temperature) are July and August (82.4°F).
The month with the lowest average high temperature is January (44.6°F).

  • Average low temperature in December: 28.4°F

Months with the highest average low temperature are July and August (51.8°F).
Coldest months (with the lowest average low temperature) are January, February and December (28.4°F).

Average rainfall in December - Arnold, CA
  • Average rainfall in December: 9.4"

The wettest month (with the highest rainfall) is January (10.4").
The driest month (with the lowest rainfall) is July (0.1").

Average daylight in December - Arnold, CA
  • Average daylight in December: 9.5h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.5h).