December weather forecast
Dairyland, CA

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Weather in December

The first month of the winter, December, is still a mild month in Dairyland, California, with an average temperature varying between 41.9°F (5.5°C) and 56.3°F (13.5°C).

Temperature

In Dairyland, December is the coldest month, with temperatures averaging a high of 56.3°F (13.5°C) and a low of 41.9°F (5.5°C).

Humidity

The average relative humidity in December in Dairyland is 67%.

Rainfall

In Dairyland, in December, it is raining for 7 days, with typically 1.3" (33mm) of accumulated precipitation. In Dairyland, during the entire year, the rain falls for 51 days and collects up to 7.56" (192mm) of precipitation.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of December in Dairyland, sunrise is at 6:56 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:54 pm PST.

Sunshine

The month with the least sunshine is December, with an average of 6.2h of sunshine.

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 medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: In December, the UV index of 3 transforms into the following advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What time of the year is the coldest in Dairyland?

The coldest period in Dairyland, California, is December, when temperatures fluctuate between an average high of 56.3°F (13.5°C) and a low of 41.9°F (5.5°C).

What are December temperatures in Dairyland?

During December, Dairyland experiences an average high-temperature of 56.3°F (13.5°C) and a low-temperature of 41.9°F (5.5°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in May is appraised at 82.4°F (28°C).

What is the average humidity in December in Dairyland?

The average relative humidity in December in Dairyland, California, is 67%.

How many days does it rain in December in Dairyland?

In Dairyland, California, in December, it is raining for 7 days, with typically 1.3" (33mm) of accumulated precipitation.

What is the month with the shortest days in Dairyland?

December has the shortest days of the year in Dairyland, California, with an average of 9h and 42min of daylight.

How many hours of daylight does Dairyland have in December?

In Dairyland, California, the average day length in December is 9h and 40min.

What time are sunrise and sunset in December in Dairyland?

In December, on the first day of the month, sunrise is at 6:56 am and sunset at 4:44 pm. On the last day of the month, in Dairyland, California, sunrise is at 7:14 am and sunset at 4:54 pm PST.

What is the month with the least sunshine in Dairyland?

With an average of 6.2h of sunshine, December has the least sunshine of the year in Dairyland.

How many hours of sunshine does Dairyland have in December?

The average sunshine duration in December is 6.2h.

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

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

What is the UV index intensity in December in Dairyland?

The average daily maximum UV index in December in Dairyland is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Dairyland, CA

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

The warmest month (with the highest average high temperature) is July (100°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in December: 41.9°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).

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Average pressure in December
Dairyland, CA

Average pressure in December - Dairyland, 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
Dairyland, CA

Average wind speed in December - Dairyland, CA
  • Average wind speed in December: 5mph

The windiest month (with the highest average wind speed) is June (7.9mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).

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Average humidity in December
Dairyland, CA

Average humidity in December - Dairyland, CA
  • Average humidity in December: 67%

The month with the highest relative humidity is January (68%).
The month with the lowest relative humidity is July (31%).

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Average rainfall in December
Dairyland, CA

Average rainfall in December - Dairyland, CA
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is March (1.46").
The driest month (with the least rainfall) is August (0.04").

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Average rainfall days in December
Dairyland, CA

Average rainfall days in December - Dairyland, CA
  • Average rainfall days in December: 7 days

The month with the highest number of rainy days is March (8.6 days).
The month with the least rainy days is June (0.8 days).

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

Average daylight in December / Average sunshine in December - Dairyland, 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 42min).

  • 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 12min).

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Average sunshine days in December
Dairyland, CA

Average sunshine days in December - Dairyland, CA
  • Average sunshine days in December: 23.3 days

The month with the most sunshine days is June (28.8 days).
The month with the least sunshine days is February (21.5 days).

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Average UV index in December
Dairyland, CA

Average UV index in December - Dairyland, 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
Dairyland, CA

Average cloud cover in December - Dairyland, CA
  • Average cloud cover in December: 30

The months with the most cloud cover are March and December (Cloud cover 30).
The months with the least cloud cover are July, August and September (Cloud cover 5).

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Average visibility in December
Dairyland, CA

Average visibility in December - Dairyland, 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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Dairyland, California, USA

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