December weather forecast
Los Gatos, CA

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Weather in December

December, the first month of the winter in Los Gatos, is still a mild month, with an average temperature fluctuating between 56.7°F (13.7°C) and 43.7°F (6.5°C).

Temperature

Los Gatos's coldest month, December, registers temperatures that range from a high of 56.7°F (13.7°C) to a low of 43.7°F (6.5°C).

Humidity

In Los Gatos, the average relative humidity in December is 71%.

Rainfall

In Los Gatos, in December, it is raining for 9.6 days, with typically 2.01" (51mm) of accumulated precipitation. In Los Gatos, during the entire year, the rain falls for 68.6 days and collects up to 11.57" (294mm) of precipitation.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year in Los Gatos.
On the first day of the month, sunrise is at 7:03 am and sunset at 4:50 pm. On the last day of December, in Los Gatos, sunrise is at 7:21 am and sunset at 5:00 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 6h 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 of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, a daily maximum UV index of 3 leads to the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

What are the coldest months in Los Gatos?

December is the coldest month, with the temperature often reaching an average high of 56.7°F (13.7°C) and an average low of 43.7°F (6.5°C).

What are December temperatures in Los Gatos?

In Los Gatos, 56.7°F (13.7°C) is the average high-temperature and 43.7°F (6.5°C) is the average low-temperature during December. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in July is computed to be 82.4°F (28°C).

What is the average humidity in December in Los Gatos?

In December, the average relative humidity is 71%.

How many days does it rain in December in Los Gatos?

In Los Gatos, California, during December, the rain falls for 9.6 days and regularly aggregates up to 2.01" (51mm) of precipitation.

What is the month with the shortest days in Los Gatos?

The month with the shortest days in Los Gatos is December, with an average of 9h and 42min of daylight.

What is the average length of the day in December in Los Gatos?

The average day length in December is 9h and 39min.

When is the sunrise / sunset in December in Los Gatos?

On the first day of December, sunrise is at 7:03 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:00 pm PST.

What is the month with the least sunshine in Los Gatos?

The month with the least sunshine in Los Gatos, California, is December, with an average of 6h of sunshine.

How long on average sun shines in December in Los Gatos?

In December, the average sunshine duration in Los Gatos, California, is 6h.

What are the months with the lowest UV index in Los Gatos?

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

What is the UV index intensity in December in Los Gatos?

The average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Los Gatos, CA

Average temperature in December - Los Gatos, CA
  • Average high temperature in December: 56.7°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is December (56.7°F).

  • Average low temperature in December: 43.7°F

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).

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Average pressure in December
Los Gatos, CA

Average pressure in December - Los Gatos, CA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June and September (29.92"Hg).

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Average wind speed in December
Los Gatos, CA

Average wind speed in December - Los Gatos, CA
  • Average wind speed in December: 5.1mph

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest months (with the lowest average wind speed) are August, September, October and November (4.5mph).

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Average humidity in December
Los Gatos, CA

Average humidity in December - Los Gatos, CA
  • Average humidity in December: 71%

The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and September (62%).

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Average rainfall in December
Los Gatos, CA

Average rainfall in December - Los Gatos, CA
  • Average rainfall in December: 2.01"

The wettest month (with the highest rainfall) is February (2.2").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in December
Los Gatos, CA

Average rainfall days in December - Los Gatos, CA
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (0.9 days).

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Average daylight in December /
Average sunshine in December
Los Gatos, CA

Average daylight in December / Average sunshine in December - Los Gatos, 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 0min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in December
Los Gatos, CA

Average sunshine days in December - Los Gatos, CA
  • Average sunshine days in December: 19.8 days

The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (17.3 days).

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Average UV index in December
Los Gatos, CA

Average UV index in December - Los Gatos, CA
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 6).
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
Los Gatos, CA

Average cloud cover in December - Los Gatos, CA
  • Average cloud cover in December: 33

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 6).

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Average visibility in December
Los Gatos, CA

Average visibility in December - Los Gatos, 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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Los Gatos, California, USA

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