Mountain View
California, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Mountain View, CA

A sunset view of a street in Mountain View Town, California, with neon-lit buildings, trees, parked cars, and distant colorful sunset skies
A sunset view of a street in Mountain View Town, California, with neon-lit buildings, trees, parked cars, and distant colorful sunset skies
The first month of the winter, December, is also a moderate month in Mountain View, California, with average temperature varying between 43°F (6.1°C) and 58.8°F (14.9°C).

Temperature

In December, the average high-temperature marginally drops, from an enjoyable 65.1°F (18.4°C) in November, to a mild 58.8°F (14.9°C). In Mountain View, the average low-temperature is 43°F (6.1°C).

Rainfall

In Mountain View, California, during December, the rain falls for 11.1 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Mountain View, during the entire year, the rain falls for 64 days and collects up to 14.8" (375.7mm) of precipitation.

Daylight

December has the shortest days of the year, with an average of 9.6h of daylight.

What is the temperature in December in Mountain View?

The average high-temperature, in December, in Mountain View, California, is 58.8°F (14.9°C), while the average low-temperature is 43°F (6.1°C).

How many days does it rain in December in Mountain View?

In Mountain View, California, in December, it is raining for 11.1 days, with typically 2.6" (66mm) of accumulated precipitation.

What is the month with the shortest days in Mountain View?

The month with the shortest days in Mountain View, California, is December, with an average of 9.6h of daylight.

How many hours of daylight does Mountain View have in December?

The average length of the day in December in Mountain View is 9.6h.
Average temperature in December - Mountain View, CA
  • Average high temperature in December: 58.8°F

The warmest month (with the highest average high temperature) is September (77.5°F).
The month with the lowest average high temperature is January (58.6°F).

  • Average low temperature in December: 43°F

Months with the highest average low temperature are July and August (59.2°F).
Coldest months (with the lowest average low temperature) are January and December (43°F).

Average rainfall in December - Mountain View, CA
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is February (3.1").
Driest months (with the lowest rainfall) are July and August (0").

Average rainfall days in December - Mountain View, CA
  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is December (11.1 days).
Months with the lowest number of rainy days are July and August (0.2 days).

Average daylight in December - Mountain View, CA
  • Average daylight in December: 9.6h

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.6h).