December weather forecast
Kirkwood, CA

Weather in December

The first month of the winter, December, is still a cold month in Kirkwood, California, with an average temperature varying between 35.4°F (1.9°C) and 20.1°F (-6.6°C).

Temperature

With an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 20.1°F (-6.6°C), December is the coldest month.

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Kirkwood, it is raining for 3.5 days, with typically 3.86" (98mm) of accumulated precipitation. In Kirkwood, during the entire year, the rain falls for 45.4 days and collects up to 26.06" (662mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In Kirkwood, in December, snow falls for 13.5 days, with typically accumulated 27.56" (700mm) of snow. Throughout the year, there are 83.9 snowfall days, and 153.46" (3898mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Kirkwood, with an average of 9h and 31min of daylight.
On the first day of December, sunrise is at 6:59 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:48 pm PST.

Sunshine

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

UV index

In Kirkwood, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. 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 the 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Kirkwood?

With an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 20.1°F (-6.6°C), December is the coldest month in Kirkwood.

What is the temperature in December in Kirkwood?

In Kirkwood, in December, the average high-temperature is 35.4°F (1.9°C), and the average low-temperature is 20.1°F (-6.6°C).

What is the average humidity in December in Kirkwood?

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

How many days does it rain in December in Kirkwood?

In Kirkwood, California, during December, the rain falls for 3.5 days and regularly aggregates up to 3.86" (98mm) of precipitation.

How much does it snow in Kirkwood in December?

In Kirkwood, during December, snow falls for 13.5 days and regularly aggregates up to 27.56" (700mm) of snow.

What is the month with the shortest days in Kirkwood?

December has the shortest days of the year, with an average of 9h and 31min of daylight.

What is the average length of the day in December in Kirkwood?

In Kirkwood, the average day length in December is 9h and 31min.

When are sunrise and sunset in December in Kirkwood?

In December, on the first day of the month, sunrise is at 6:59 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:48 pm PST.

What is the month with the least sunshine in Kirkwood?

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

How long on average sun shines in December in Kirkwood?

The average sunshine duration in December in Kirkwood, California, is 5.4h.

What is the UV index reading in December in Kirkwood?

In Kirkwood, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Kirkwood, CA

Average temperature in December - Kirkwood, CA
  • Average high temperature in December: 35.4°F

The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is December (35.4°F).

  • Average low temperature in December: 20.1°F

The month with the highest average low temperature is July (47.1°F).
The coldest month (with the lowest average low temperature) is December (20.1°F).

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Average pressure in December
Kirkwood, CA

Average pressure in December - Kirkwood, CA
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Kirkwood, CA

Average wind speed in December - Kirkwood, CA
  • Average wind speed in December: 6.9mph

The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in December
Kirkwood, CA

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

The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is August (41%).

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Average rainfall in December
Kirkwood, CA

Average rainfall in December - Kirkwood, CA
  • Average rainfall in December: 3.86"

The wettest month (with the highest rainfall) is March (4.69").
The driest month (with the least rainfall) is August (0.31").

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Average rainfall days in December
Kirkwood, CA

Average rainfall days in December - Kirkwood, CA
  • Average rainfall days in December: 3.5 days

The month with the highest number of rainy days is May (6.9 days).
The month with the least rainy days is November (1.3 days).

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Average snowfall in December
Kirkwood, CA

Average snowfall in December - Kirkwood, CA
  • Average snowfall in December: 27.56"

The month with the highest snowfall is March (33.46").
The months with the least snowfall are July and August (0").

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Average snowfall days in December
Kirkwood, CA

Average snowfall days in December - Kirkwood, CA
  • Average snowfall days in December: 13.5 days

The month with the highest number of snowfall days is March (15.2 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in December / Average sunshine in December - Kirkwood, CA
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in December
Kirkwood, CA

Average sunshine days in December - Kirkwood, CA
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is August (25.6 days).
The month with the least sunshine days is March (14.7 days).

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Average UV index in December
Kirkwood, CA

Average UV index in December - Kirkwood, CA
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in December
Kirkwood, CA

Average cloud cover in December - Kirkwood, CA
  • Average cloud cover in December: 40

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 8).

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Average visibility in December
Kirkwood, CA

Average visibility in December - Kirkwood, CA
  • Average visibility in December: 5mi

The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).

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