December weather forecast and climate
Kirkwood, CA

Weather in December

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

Temperature

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

Humidity

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

Rainfall

In Kirkwood, during 3.5 rainfall days, 3.86" (98mm) of precipitation is typically accumulated. 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 in Kirkwood are January through June, September through December. In December, in Kirkwood, California, it is snowing for 13.5 days. Throughout December, 27.56" (700mm) of snow is accumulated. In Kirkwood, during the entire year, snow falls for 83.9 days, and aggregates up to 153.46" (3898mm) of snow.

Daylight

With an average of 9.5h of daylight, December has the shortest days of the year.

Sunshine

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

UV index

In December, the average daily maximum UV index in Kirkwood is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 2 in December transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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?

December 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).

What is the temperature in December in Kirkwood?

The average high-temperature, in December, is 35.4°F (1.9°C), while 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 is 76%.

How many days does it rain in December in Kirkwood?

In Kirkwood, California, in December, it is raining for 3.5 days, with typically 3.86" (98mm) of accumulated 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 in Kirkwood, California, with an average of 9.5h of daylight.

How many hours of daylight does Kirkwood have in December?

The average length of the day in December in Kirkwood, California, is 9.5h.

What is the month with the least sunshine in Kirkwood?

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

How long on average sun shines in December in Kirkwood?

In December, the average sunshine in Kirkwood is 5.4h.

What is the UV index reading in December in Kirkwood?

In December, the average daily maximum UV index in Kirkwood is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the Sun's UV rays.

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"

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

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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").
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).
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: 9.5h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in December: 5.4h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.4h).

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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

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

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

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