December weather forecast and climate
Lake Nacimiento, CA

Weather in December

The first month of the winter, December, is still a mild month in Lake Nacimiento, California, with average temperature fluctuating between 42.8°F (6°C) and 58.1°F (14.5°C).

Temperature

With an average high-temperature of 58.1°F (14.5°C) and an average low-temperature of 42.8°F (6°C), December is the coldest month.

Humidity

In December, the average relative humidity in Lake Nacimiento, California, is 66%.

Rainfall

In Lake Nacimiento, California, during December, the rain falls for 8 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Lake Nacimiento, during the entire year, the rain falls for 55.2 days and collects up to 9.06" (230mm) of precipitation.

Daylight

With an average of 9.8h of daylight, December has the shortest days of the year in Lake Nacimiento, California.

Sunshine

Months with the least sunshine in Lake Nacimiento, California, are February and December, with an average of 6.4h of sunshine.

UV index

Months with the lowest UV index in Lake Nacimiento are February, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the coldest month in Lake Nacimiento?

The coldest month in Lake Nacimiento is December, with an average high-temperature of 58.1°F (14.5°C) and an average low-temperature of 42.8°F (6°C).

What is the temperature in December in Lake Nacimiento?

In December, in Lake Nacimiento, California, the average high-temperature is 58.1°F (14.5°C), and the average low-temperature is 42.8°F (6°C).

What is the average humidity in December in Lake Nacimiento?

In Lake Nacimiento, California, the average relative humidity in December is 66%.

How many days does it rain in December in Lake Nacimiento?

In Lake Nacimiento, California, during December, the rain falls for 8 days and regularly aggregates up to 1.57" (40mm) of precipitation.

What is the month with the shortest days in Lake Nacimiento?

With an average of 9.8h of daylight, December has the shortest days of the year.

What is the average length of the day in December in Lake Nacimiento?

In December, the average length of the day is 9.8h.

What is the month with the least sunshine in Lake Nacimiento?

February and December, with an average of 6.4h of sunshine, are months with the least sunshine.

How many hours of sunshine does Lake Nacimiento have in December?

The average sunshine in December in Lake Nacimiento is 6.4h.

When is the lowest UV index in Lake Nacimiento?

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

What is the UV index reading in December in Lake Nacimiento?

In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.

Average temperature in December
Lake Nacimiento, CA

Average temperature in December - Lake Nacimiento, CA
  • Average high temperature in December: 58.1°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is December (58.1°F).

  • Average low temperature in December: 42.8°F

The month with the highest average low temperature is August (60.8°F).
The coldest months (with the lowest average low temperature) are February and December (42.8°F).

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Average pressure in December
Lake Nacimiento, CA

Average pressure in December - Lake Nacimiento, 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 and September (29.91").

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Average wind speed in December
Lake Nacimiento, CA

Average wind speed in December - Lake Nacimiento, CA
  • Average wind speed in December: 4.8mph

The windiest month (with the highest average wind speed) is May (6.1mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

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Average humidity in December
Lake Nacimiento, CA

Average humidity in December - Lake Nacimiento, CA
  • Average humidity in December: 66%

The month with the highest relative humidity is February (68%).
The month with the lowest relative humidity is September (47%).

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Average rainfall in December
Lake Nacimiento, CA

Average rainfall in December - Lake Nacimiento, CA
  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is January (1.77").
The driest month (with the least rainfall) is August (0.04").

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Average rainfall days in December
Lake Nacimiento, CA

Average rainfall days in December - Lake Nacimiento, CA
  • Average rainfall days in December: 8 days

The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is August (0.8 days).

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Average daylight in December /
Average sunshine in December
Lake Nacimiento, CA

Average daylight in December / Average sunshine in December - Lake Nacimiento, CA
  • Average daylight in December: 9.8h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in December: 6.4h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
Months with the least sunshine are February and December (Average sunshine: 6.4).

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Average sunshine days in December
Lake Nacimiento, CA

Average sunshine days in December - Lake Nacimiento, CA
  • Average sunshine days in December: 22 days

The month with the most sunshine days is August (29 days).
The month with the least sunshine days is February (19.8 days).

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Average UV index in December
Lake Nacimiento, CA

Average UV index in December - Lake Nacimiento, CA
  • Average UV index in December: 3

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

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Average cloud cover in December
Lake Nacimiento, CA

Average cloud cover in December - Lake Nacimiento, CA
  • Average cloud cover in December: 28

The month with the most cloud cover is March (Cloud cover 29).
Months with the least cloud cover are July, August and September (Cloud cover 5).

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Average visibility in December
Lake Nacimiento, CA

Average visibility in December - Lake Nacimiento, 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).

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