Mill Valley
California, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Mill Valley, CA

January, like December, is a moderate winter month in Mill Valley, California, with average temperature fluctuating between 41°F (5°C) and 55.9°F (13.3°C).

Temperature

January and December, with an average high-temperature of 55.9°F (13.3°C), are the coldest months.

Daylight

In January, the average length of the day in Mill Valley is 9.9h.

What are the coldest months in Mill Valley?

January and December, with an average high-temperature of 55.9°F (13.3°C), are the coldest months in Mill Valley, California.

What is the temperature in January in Mill Valley?

The average high-temperature, in January, is 55.9°F (13.3°C), while the average low-temperature is 41°F (5°C).

What is the average length of the day in January in Mill Valley?

In January, the average length of the day in Mill Valley is 9.9h.
Average temperature in January - Mill Valley, CA
  • Average high temperature in January: 56°F

The warmest month (with the highest average high temperature) is July (85°F).
Months with the lowest average high temperature are January and December (56°F).

  • Average low temperature in January: 41°F

The month with the highest average low temperature is August (54°F).
Coldest months (with the lowest average low temperature) are January and December (41°F).

Average daylight in January - Mill Valley, CA
  • Average daylight in January: 9.9h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.6h).