December weather forecast
Planada, CA

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Weather in December

The first month of the winter, December, is still a refreshing month in Planada, California, with an average temperature fluctuating between 55.9°F (13.3°C) and 41.9°F (5.5°C).

Temperature

The coldest time of the year is December, with temperatures averaging a high of 55.9°F (13.3°C) and a low of 41.9°F (5.5°C).

Humidity

The average relative humidity in December in Planada is 68%.

Rainfall

In Planada, during December, the rain falls for 8.7 days and regularly aggregates up to 1.89" (48mm) of precipitation. Throughout the year, in Planada, California, there are 62.9 rainfall days, and 11.69" (297mm) of precipitation is accumulated.

Daylight

December has the shortest days of the year in Planada, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 6:57 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:54 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 6.1h of sunshine.

UV index

The months with the lowest UV index in Planada are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 3 during December translates into these guidelines:
Adopt protective measures - It is advised to guard against sun damage. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

What part of the year is the coldest in Planada?

With an average high-temperature of 55.9°F (13.3°C) and an average low-temperature of 41.9°F (5.5°C), December is the coldest month.

What is the temperature in December in Planada?

In December, the average high-temperature and low-temperature in Planada are 55.9°F (13.3°C) and 41.9°F (5.5°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in May is evaluated at 82.4°F (28°C).

What is the average humidity in December in Planada?

In December, the average relative humidity in Planada, California, is 68%.

How much does it rain in Planada in December?

In Planada, California, in December, it is raining for 8.7 days, with typically 1.89" (48mm) of accumulated precipitation.

What is the month with the shortest days in Planada?

The month with the shortest days in Planada is December, with an average of 9h and 36min of daylight.

How many hours of daylight does Planada have in December?

The average day length in December in Planada is 9h and 39min.

When is the sunrise / sunset in December in Planada?

In December, on the first day of the month, sunrise is at 6:57 am and sunset at 4:43 pm. On the last day of the month, in Planada, sunrise is at 7:15 am and sunset at 4:54 pm PST.

What is the month with the least sunshine in Planada?

December has the least sunshine of the year in Planada, California, with an average of 6.1h of sunshine.

How long on average sun shines in December in Planada?

In December, the average sunshine duration in Planada, California, is 6.1h.

What is the month with the lowest UV index in Planada?

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

How high is the UV index in December in Planada?

In December, the average daily maximum UV index in Planada is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Planada, CA

Average temperature in December - Planada, CA
  • Average high temperature in December: 55.9°F

The warmest month (with the highest average high temperature) is July (99.1°F).
The month with the lowest average high temperature is December (55.9°F).

  • Average low temperature in December: 41.9°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).

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Average pressure in December
Planada, CA

Average pressure in December - Planada, CA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Planada, CA

Average wind speed in December - Planada, CA
  • Average wind speed in December: 5.5mph

The windiest month (with the highest average wind speed) is June (8.3mph).
The calmest months (with the lowest average wind speed) are January and November (5.2mph).

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Average humidity in December
Planada, CA

Average humidity in December - Planada, CA
  • Average humidity in December: 68%

The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is July (32%).

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Average rainfall in December
Planada, CA

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

The wettest month (with the highest rainfall) is March (2.44").
The driest month (with the least rainfall) is August (0.04").

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Average rainfall days in December
Planada, CA

Average rainfall days in December - Planada, CA
  • Average rainfall days in December: 8.7 days

The month with the highest number of rainy days is March (11.3 days).
The month with the least rainy days is June (1.1 days).

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

Average daylight in December / Average sunshine in December - Planada, CA
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 6h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

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Average sunshine days in December
Planada, CA

Average sunshine days in December - Planada, CA
  • Average sunshine days in December: 21.5 days

The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (18.8 days).

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Average UV index in December
Planada, CA

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

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

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Average cloud cover in December
Planada, CA

Average cloud cover in December - Planada, CA
  • Average cloud cover in December: 31

The month with the most cloud cover is March (Cloud cover 32).
The months with the least cloud cover are July and August (Cloud cover 5).

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Average visibility in December
Planada, CA

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

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

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Planada, California, USA

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