December weather forecast and climate
Davis, CA

The first month of the winter, December, is still a cool month in Davis, California, with average temperature ranging between max 54.5°F (12.5°C) and min 41.4°F (5.2°C).

Temperature

The coldest month is December, with an average high-temperature of 54.5°F (12.5°C) and an average low-temperature of 41.4°F (5.2°C).

Humidity

In Davis, the average relative humidity is 71%.

Rainfall

In Davis, it is raining for 9.7 days, with typically 1.89" (48mm) of accumulated precipitation. In Davis, California, during the entire year, the rain falls for 67.4 days and collects up to 12.17" (309mm) of precipitation.

Daylight

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

Sunshine

With an average of 5.6h of sunshine, December has the least sunshine of the year.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the coldest month in Davis?

The coldest month in Davis, California, is December, with an average high-temperature of 54.5°F (12.5°C) and an average low-temperature of 41.4°F (5.2°C).

What is the temperature in December in Davis?

In Davis, in December, the average high-temperature is 54.5°F (12.5°C), and the average low-temperature is 41.4°F (5.2°C).

What is the average humidity in December in Davis?

In Davis, the average relative humidity in December is 71%.

How many days does it rain in December in Davis?

In December, in Davis, the rain falls for 9.7 days. Throughout December, 1.89" (48mm) of precipitation is accumulated.

What is the month with the shortest days in Davis?

The month with the shortest days in Davis, California, is December, with an average of 9.5h of daylight.

How many hours of daylight does Davis have in December?

In Davis, California, the average length of the day in December is 9.5h.

What is the month with the least sunshine in Davis?

December has the least sunshine of the year in Davis, California, with an average of 5.6h of sunshine.

How long on average sun shines in December in Davis?

The average sunshine in December in Davis is 5.6h.

What are the months with the lowest UV index in Davis?

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.

How high is the UV index in December in Davis?

In December, the average daily maximum UV index in Davis is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV radiation.
Average temperature in December - Davis, CA
  • Average high temperature in December: 54.5°F

The warmest month (with the highest average high temperature) is July (93.6°F).
The month with the lowest average high temperature is December (54.5°F).

  • Average low temperature in December: 41.4°F

The month with the highest average low temperature is August (59.2°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).

Average pressure in December - Davis, CA
  • Average pressure in December: 30.12"

The month with the highest atmospheric pressure is January (30.15").
Months with the lowest atmospheric pressure are June and August (29.91").

Average wind speed in December - Davis, CA
  • Average wind speed in December: 5.6mph

The windiest months (with the highest average wind speed) are May and June (6.3mph).
The calmest month (with the lowest average wind speed) is November (5mph).

Average humidity in December - Davis, CA
  • Average humidity in December: 71%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (45%).

Average rainfall in December - Davis, CA
  • Average rainfall in December: 1.89"

The wettest month (with the highest rainfall) is February (2.44").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in December - Davis, CA
  • Average rainfall days in December: 9.7 days

The month with the highest number of rainy days is March (12.5 days).
Months with the least rainy days are July and August (0.8 days).

Average daylight in December / Average sunshine in December - Davis, CA
  • Average daylight in December: 9.5h

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

  • Average sunshine in December: 5.6h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.6h).

Average sunshine days in December - Davis, CA
  • Average sunshine days in December: 20.1 days

The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.8 days).

Average UV index in December - Davis, CA
  • Average UV index in December: 3

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in December - Davis, CA
  • Average cloud cover in December: 37

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 5).

Average visibility in December - Davis, CA
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).