December weather forecast and climate
Scotts Valley, CA

Weather in December

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

Temperature

December is the coldest month, with an average high-temperature of 57°F (13.9°C) and an average low-temperature of 45.5°F (7.5°C).

Humidity

In December, the average relative humidity in Scotts Valley is 71%.

Rainfall

In December, in Scotts Valley, the rain falls for 9.8 days. Throughout December, 2.52" (64mm) of precipitation is 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 in Scotts Valley, with an average of 9.7h of daylight.

Sunshine

The month with the least sunshine in Scotts Valley, California, is December, with an average of 5.8h of sunshine.

UV index

Months with the lowest UV index are February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 3 in December transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the coldest month in Scotts Valley?

With an average high-temperature of 57°F (13.9°C) and an average low-temperature of 45.5°F (7.5°C), December is the coldest month in Scotts Valley, California.

What is the temperature in December in Scotts Valley?

In Scotts Valley, California, in December, the average high-temperature is 57°F (13.9°C), and the average low-temperature is 45.5°F (7.5°C).

What is the average humidity in December in Scotts Valley?

The average relative humidity in December is 71%.

How much does it rain in Scotts Valley in December?

In Scotts Valley, during December, the rain falls for 9.8 days and regularly aggregates up to 2.52" (64mm) of precipitation.

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

With an average of 9.7h of daylight, December has the shortest days of the year.

How many hours of daylight does Scotts Valley have in December?

In Scotts Valley, the average length of the day in December is 9.7h.

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.

How many hours of sunshine does Scotts Valley have in December?

The average sunshine in December in Scotts Valley is 5.8h.

When is the lowest UV index in Scotts Valley?

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

How high is the UV index in December in Scotts Valley?

In Scotts Valley, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.

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"

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

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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: 9.7h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in December: 5.8h

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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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

Months with the highest UV index are June, July, August, September and October (UV index 5).
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

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

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