December weather forecast
Kirkwood, CA

Share

Weather in December

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

Temperature

Kirkwood's December weather, with an average high temperature of 35.4°F (1.9°C) and an average low temperature of 20.1°F (-6.6°C), tends to be the coldest of the year.

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Kirkwood, during December, the rain falls for 3.5 days and regularly aggregates up to 3.86" (98mm) of precipitation. Throughout the year, in Kirkwood, there are 45.4 rainfall days, and 26.06" (662mm) of precipitation is accumulated.

Snowfall

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

Daylight

The month with the shortest days in Kirkwood is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:00 am and sunset at 4:39 pm. On the last day of December, in Kirkwood, sunrise is at 7:18 am and sunset at 4:49 pm PST.

Sunshine

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

UV index

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In December, a regular UV index of 2 translates into these guidelines:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
[Resources]

Frequently asked questions

What month is the coldest in Kirkwood?

December proves to be the coldest month in Kirkwood, recording an average maximum temperature of 35.4°F (1.9°C) and a minimum temperature of 20.1°F (-6.6°C).

How cold is it in Kirkwood in December?

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

What is the average humidity in December in Kirkwood?

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

How many days does it rain in December in Kirkwood?

In Kirkwood, 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, California, 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 30min of daylight.

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

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

What time are sunrise and sunset in December in Kirkwood?

On the first day of December in Kirkwood, California, sunrise is at 7:00 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:49 pm PST.

What is the month with the least sunshine in Kirkwood?

The month with the least sunshine in Kirkwood, California, is December, with an average of 5.4h of sunshine.

How many hours of sunshine does Kirkwood have in December?

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

What is the UV index reading in December in Kirkwood?

The average daily maximum UV index in December in Kirkwood, California, is 2. A UV Index value of 2, and less, symbolizes a low health risk 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).

[Resources]

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).

[Resources]

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).

[Resources]

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%).

[Resources]

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").

[Resources]

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).

[Resources]

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").

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

Kirkwood, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location