December weather forecast and climate
Happy Camp, CA

Weather in December

The first month of the winter, December, is still a chilly month in Happy Camp, California, with average temperature fluctuating between 30.7°F (-0.7°C) and 47.1°F (8.4°C).

Temperature

December is the coldest month, with an average high-temperature of 47.1°F (8.4°C) and an average low-temperature of 30.7°F (-0.7°C).

Humidity

In Happy Camp, the average relative humidity is 81%.

Rainfall

In Happy Camp, in December, during 16 rainfall days, 6.54" (166mm) of precipitation is typically accumulated. In Happy Camp, California, during the entire year, the rain falls for 127.2 days and collects up to 39.02" (991mm) of precipitation.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.5 snowfall days, it receives 0.39" (10mm) of snow. In Happy Camp, during the entire year, snow falls for 3.3 days, and aggregates up to 2.83" (72mm) of snow.

Daylight

With an average of 9.2h of daylight, December has the shortest days of the year.

Sunshine

With an average of 4.8h of sunshine, December has the least sunshine of the year.

UV index

February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Happy Camp. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to the UV radiation for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Happy Camp?

The coldest month is December, with an average high-temperature of 47.1°F (8.4°C) and an average low-temperature of 30.7°F (-0.7°C).

What is the temperature in December in Happy Camp?

The average high-temperature, in December, in Happy Camp, California, is 47.1°F (8.4°C), while the average low-temperature is 30.7°F (-0.7°C).

What is the average humidity in December in Happy Camp?

The average relative humidity in December in Happy Camp, California, is 81%.

How much does it rain in Happy Camp in December?

In Happy Camp, California, during December, the rain falls for 16 days and regularly aggregates up to 6.54" (166mm) of precipitation.

When does it start to snow in Happy Camp?

December is the first month it typically snows. Throughout December, in the average 0.5 snowfall days, it receives 0.39" (10mm) of snow.

What is the month with the shortest days in Happy Camp?

The month with the shortest days in Happy Camp, California, is December, with an average of 9.2h of daylight.

How many hours of daylight does Happy Camp have in December?

The average length of the day in December is 9.2h.

What is the month with the least sunshine in Happy Camp?

With an average of 4.8h of sunshine, December has the least sunshine of the year in Happy Camp.

How long on average sun shines in December in Happy Camp?

The average sunshine in December in Happy Camp, California, is 4.8h.

When is the lowest UV index in Happy Camp?

Months with the lowest UV index in Happy Camp, California, are February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Happy Camp?

The average daily maximum UV index in December in Happy Camp, California, is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to the UV radiation.

Average temperature in December
Happy Camp, CA

Average temperature in December - Happy Camp, CA
  • Average high temperature in December: 47.1°F

The warmest month (with the highest average high temperature) is August (83.3°F).
The month with the lowest average high temperature is December (47.1°F).

  • Average low temperature in December: 30.7°F

The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is December (30.7°F).

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Average pressure in December
Happy Camp, CA

Average pressure in December - Happy Camp, CA
  • Average pressure in December: 30.12"

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is August (29.96").

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Average wind speed in December
Happy Camp, CA

Average wind speed in December - Happy Camp, CA
  • Average wind speed in December: 4.6mph

The windiest month (with the highest average wind speed) is March (5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in December
Happy Camp, CA

Average humidity in December - Happy Camp, CA
  • Average humidity in December: 81%

The month with the highest relative humidity is March (84%).
The month with the lowest relative humidity is August (61%).

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Average rainfall in December
Happy Camp, CA

Average rainfall in December - Happy Camp, CA
  • Average rainfall in December: 6.54"

The wettest month (with the highest rainfall) is January (7.17").
The driest month (with the least rainfall) is July (0.12").

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Average rainfall days in December
Happy Camp, CA

Average rainfall days in December - Happy Camp, CA
  • Average rainfall days in December: 16 days

The month with the highest number of rainy days is March (19.3 days).
Months with the least rainy days are July and August (2.3 days).

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Average snowfall in December
Happy Camp, CA

Average snowfall in December - Happy Camp, CA
  • Average snowfall in December: 0.39"

The month with the highest snowfall is February (1.77").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Happy Camp, CA

Average snowfall days in December - Happy Camp, CA
  • Average snowfall days in December: 0.5 days

The month with the highest number of snowfall days is February (1.4 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Happy Camp, CA

Average daylight in December / Average sunshine in December - Happy Camp, CA
  • Average daylight in December: 9.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in December: 4.8h

Months with the most sunshine are July and August (Average sunshine: 11.8h).
The month with the least sunshine is December (Average sunshine: 4.8h).

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Average sunshine days in December
Happy Camp, CA

Average sunshine days in December - Happy Camp, CA
  • Average sunshine days in December: 14 days

The month with the most sunshine days is July (27.6 days).
The month with the least sunshine days is March (10.3 days).

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Average UV index in December
Happy Camp, CA

Average UV index in December - Happy Camp, CA
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are February, November and December (UV index 2).

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Average cloud cover in December
Happy Camp, CA

Average cloud cover in December - Happy Camp, CA
  • Average cloud cover in December: 50

The month with the most cloud cover is March (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 12).

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Average visibility in December
Happy Camp, CA

Average visibility in December - Happy Camp, CA
  • Average visibility in December: 4mi

Months with the highest visibility are July, August and September (6mi).
Months with the lowest visibility are March, April and December (4mi).

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