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

December weather forecast and climate
Rocklin, CA

December, the first month of the winter, in Rocklin, is also a fresh month, with average temperature varying between 54°F (12.2°C) and 39°F (3.9°C).

Temperature

In Rocklin, the average high-temperature drops, from an enjoyable 63°F (17.2°C) in November, to a cool 54°F (12.2°C). In Rocklin, the average low-temperature is 39°F (3.9°C).

Rainfall

Throughout December, 3.3" (84.6mm) of precipitation is accumulated. During the entire year, Rocklin aggregates up to 20.4" (519.3mm) of precipitation.

Daylight

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

What is the temperature in December in Rocklin?

In Rocklin, in December, the average high-temperature is 54°F (12.2°C), and the average low-temperature is 39°F (3.9°C).

How much does it rain in Rocklin in December?

During December, Rocklin regularly aggregates up to 3.3" (84.6mm) of precipitation.

What is the month with the shortest days in Rocklin?

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

How many hours of daylight does Rocklin have in December?

In December, the average length of the day is 9.5h.
Average temperature in December - Rocklin, CA
  • Average high temperature in December: 54°F

The warmest month (with the highest average high temperature) is July (94°F).
The month with the lowest average high temperature is January (53°F).

  • Average low temperature in December: 39°F

Months with the highest average low temperature are July and August (61°F).
Coldest months (with the lowest average low temperature) are January and December (39°F).

Average rainfall in December - Rocklin, CA
  • Average rainfall in December: 3.3"

The wettest month (with the highest rainfall) is January (4").
The driest month (with the lowest rainfall) is July (0").

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

The month with the longest days is June (Average daylight: 14.9h).
The month with shortest days is December (Average daylight: 9.5h).