San Gregorio
California, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
San Gregorio, CA

The first month of the winter, December, is still a mild month in San Gregorio, California, with average temperature varying between 60.6°F (15.9°C) and 39°F (3.9°C).

Temperature

In December, the average high-temperature is essentially the same as in November - a mild 60.6°F (15.9°C). In December, the average low-temperature is 39°F (3.9°C).

Rainfall

During December, San Gregorio regularly aggregates up to 4.4" (110.7mm) of precipitation. Throughout the year, 29.5" (749.5mm) of rain is accumulated.

Daylight

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

What is the temperature in December in San Gregorio?

The average high-temperature, in December, is 60.6°F (15.9°C), while the average low-temperature is 39°F (3.9°C).

How much does it rain in San Gregorio in December?

In San Gregorio, in December, 4.4" (110.7mm) of precipitation is typically accumulated.

What is the month with the shortest days in San Gregorio?

With an average of 9.6h of daylight, December has the shortest days of the year in San Gregorio, California.

What is the average length of the day in December in San Gregorio?

The average length of the day in December is 9.6h.
Average temperature in December - San Gregorio, CA
  • Average high temperature in December: 60.6°F

The warmest month (with the highest average high temperature) is September (72.5°F).
Months with the lowest average high temperature are January and March (60.1°F).

  • Average low temperature in December: 39°F

The month with the highest average low temperature is August (51.1°F).
The coldest month (with the lowest average low temperature) is December (39°F).

Average rainfall in December - San Gregorio, CA
  • Average rainfall in December: 4.4"

The wettest month (with the highest rainfall) is January (5.7").
The driest month (with the lowest rainfall) is July (0.1").

Average daylight in December - San Gregorio, 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).