December weather forecast and climate
Occidental, CA

Weather in December

The first month of the winter, December, is also a moderate month in Occidental, California, with average temperature fluctuating between 56.3°F (13.5°C) and 41.4°F (5.2°C).

Temperature

December is the coldest month, with an average high-temperature of 56.3°F (13.5°C) and an average low-temperature of 41.4°F (5.2°C).

Humidity

In Occidental, the average relative humidity in December is 76%.

Rainfall

In Occidental, in December, during 8.6 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. In Occidental, during the entire year, the rain falls for 60.1 days and collects up to 12.87" (327mm) of precipitation.

Daylight

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

Sunshine

December has the least sunshine of the year, with an average of 5.4h of sunshine.

UV index

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 3 in December transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
[Resources]

FAQ

What is the coldest month in Occidental?

With an average high-temperature of 56.3°F (13.5°C) and an average low-temperature of 41.4°F (5.2°C), December is the coldest month in Occidental.

What is the temperature in December in Occidental?

In December, in Occidental, California, the average high-temperature is 56.3°F (13.5°C), and the average low-temperature is 41.4°F (5.2°C).

What is the average humidity in December in Occidental?

The average relative humidity in December in Occidental, California, is 76%.

How many days does it rain in December in Occidental?

In December, in Occidental, the rain falls for 8.6 days. Throughout December, 2.32" (59mm) of precipitation is accumulated.

What is the month with the shortest days in Occidental?

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

How many hours of daylight does Occidental have in December?

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

What is the month with the least sunshine in Occidental?

December has the least sunshine of the year in Occidental, California, with an average of 5.4h of sunshine.

How long on average sun shines in December in Occidental?

In December, the average sunshine is 5.4h.

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

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

What is the UV index intensity in December in Occidental?

The average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.

Average temperature in December
Occidental, CA

Average temperature in December - Occidental, CA
  • Average high temperature in December: 56.3°F

The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in December: 41.4°F

Months with the highest average low temperature are August and September (53.4°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).

[Resources]

Average pressure in December
Occidental, CA

Average pressure in December - Occidental, CA
  • Average pressure in December: 30.1"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

[Resources]

Average wind speed in December
Occidental, CA

Average wind speed in December - Occidental, CA
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest month (with the lowest average wind speed) is November (5mph).

[Resources]

Average humidity in December
Occidental, CA

Average humidity in December - Occidental, CA
  • Average humidity in December: 76%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (62%).

[Resources]

Average rainfall in December
Occidental, CA

Average rainfall in December - Occidental, CA
  • Average rainfall in December: 2.32"

The wettest month (with the highest rainfall) is February (3.27").
The driest months (with the least rainfall) are July and August (0.04").

[Resources]

Average rainfall days in December
Occidental, CA

Average rainfall days in December - Occidental, CA
  • Average rainfall days in December: 8.6 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).

[Resources]

Average daylight in December /
Average sunshine in December
Occidental, CA

Average daylight in December / Average sunshine in December - Occidental, 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: 5.4h

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is December (Average sunshine: 5.4h).

[Resources]

Average sunshine days in December
Occidental, CA

Average sunshine days in December - Occidental, CA
  • Average sunshine days in December: 21.3 days

The month with the most sunshine days is July (28.9 days).
The month with the least sunshine days is February (19.9 days).

[Resources]

Average UV index in December
Occidental, CA

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

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

[Resources]

Average cloud cover in December
Occidental, CA

Average cloud cover in December - Occidental, CA
  • Average cloud cover in December: 39

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 11).

[Resources]

Average visibility in December
Occidental, CA

Average visibility in December - Occidental, 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).

[Resources]