December weather forecast
Scotts Valley, CA

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Weather in December

The first month of the winter, December, is still a refreshing month in Scotts Valley, California, with temperature in the range of an average high of 57°F (13.9°C) and an average low of 45.5°F (7.5°C).

Temperature

December stands out as Scotts Valley's coldest month, with temperatures ranging between an average high of 57°F (13.9°C) and a low of 45.5°F (7.5°C).

Humidity

The average relative humidity in December is 71%.

Rainfall

In Scotts Valley, in December, during 9.8 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Scotts Valley, during the entire year, the rain falls for 72.5 days and collects up to 13.58" (345mm) of precipitation.

Daylight

December has the shortest days of the year, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 7:03 am and sunset at 4:51 pm. On the last day of December, sunrise is at 7:21 am and sunset at 5:01 pm PST.

Sunshine

With an average of 5.8h of sunshine, December has the least sunshine of the year in Scotts Valley, California.

UV index

The months with the lowest UV index in Scotts Valley are February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the maximum UV index of 3 suggests this advice:
Ensure safety - Sun damage prevention is strongly urged. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

What is the coldest month in Scotts Valley?

In Scotts Valley, December is the coldest month, with temperatures averaging a high of 57°F (13.9°C) and a low of 45.5°F (7.5°C).

What is the average December temperature in Scotts Valley?

December temperatures vary between a high-temperature of 57°F (13.9°C) and a low-temperature of 45.5°F (7.5°C).

What is the average humidity in December in Scotts Valley?

In December, the average relative humidity is 71%.

How many days does it rain in December in Scotts Valley?

In Scotts Valley, California, in December, during 9.8 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.

What is the month with the shortest days in Scotts Valley?

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

What is the average length of the day in December in Scotts Valley?

In December, the average day length is 9h and 40min.

When are sunrise and sunset in December in Scotts Valley?

On the first day of December in Scotts Valley, California, sunrise is at 7:03 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:01 pm PST.

What is the month with the least sunshine in Scotts Valley?

With an average of 5.8h of sunshine, December has the least sunshine of the year in Scotts Valley, California.

How long on average sun shines in December in Scotts Valley?

In December, the average sunshine duration in Scotts Valley, California, is 5.8h.

What are the months with the lowest UV index in Scotts Valley?

February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Scotts Valley, California.

What is the UV index intensity in December in Scotts Valley?

The average daily maximum UV index in December in Scotts Valley is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to 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
Scotts Valley, CA

Average temperature in December - Scotts Valley, CA
  • Average high temperature in December: 57°F

The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is December (57°F).

  • Average low temperature in December: 45.5°F

The month with the highest average low temperature is September (55.4°F).
The coldest month (with the lowest average low temperature) is February (45.1°F).

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Average pressure in December
Scotts Valley, CA

Average pressure in December - Scotts Valley, CA
  • Average pressure in December: 30.11"Hg

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

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Average wind speed in December
Scotts Valley, CA

Average wind speed in December - Scotts Valley, CA
  • Average wind speed in December: 5.9mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in December
Scotts Valley, CA

Average humidity in December - Scotts Valley, CA
  • Average humidity in December: 71%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in December
Scotts Valley, CA

Average rainfall in December - Scotts Valley, CA
  • Average rainfall in December: 2.52"

The wettest month (with the highest rainfall) is February (2.6").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in December
Scotts Valley, CA

Average rainfall days in December - Scotts Valley, CA
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (0.8 days).

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Average daylight in December /
Average sunshine in December
Scotts Valley, CA

Average daylight in December / Average sunshine in December - Scotts Valley, 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: 5h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in December
Scotts Valley, CA

Average sunshine days in December - Scotts Valley, CA
  • Average sunshine days in December: 20.2 days

The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is March (17.5 days).

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Average UV index in December
Scotts Valley, CA

Average UV index in December - Scotts Valley, CA
  • Average UV index in December: 3

The months with the highest UV index are June, July, August, September and October (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).

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Average cloud cover in December
Scotts Valley, CA

Average cloud cover in December - Scotts Valley, CA
  • Average cloud cover in December: 34

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 12).

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Average visibility in December
Scotts Valley, CA

Average visibility in December - Scotts Valley, 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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Scotts Valley, California, USA

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