December weather forecast
Sedco Hills, CA

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Weather in December

December, the first month of the winter in Sedco Hills, is also an enjoyable month, with an average temperature ranging between min 43.7°F (6.5°C) and max 61.5°F (16.4°C).

Temperature

In Sedco Hills, the month of December is known for its lowest average temperatures, reaching a high of 61.5°F (16.4°C) and a low of 43.7°F (6.5°C).

Humidity

In Sedco Hills, the average relative humidity in December is 57%.

Rainfall

In Sedco Hills, in December, it is raining for 4.5 days, with typically 0.43" (11mm) of accumulated precipitation. In Sedco Hills, during the entire year, the rain falls for 34.6 days and collects up to 2.56" (65mm) of precipitation.

Daylight

The month with the shortest days is December, with an average of 10h and 0min of daylight.
On the first day of December, sunrise is at 6:36 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 4:51 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 6.6h of sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: An average maximum UV index of 3 in December leads to these recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

December, characterized by an average high temperature of 61.5°F (16.4°C) and a low temperature of 43.7°F (6.5°C), is generally the coldest month.

What is the average December temperature?

Sedco Hills in December has an average high-temperature of 61.5°F (16.4°C) and an average low-temperature of 43.7°F (6.5°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 57%.

How much does it rain in December?

In December, the rain falls for 4.5 days. Throughout December, 0.43" (11mm) of precipitation is accumulated.

What is the month with the shortest days?

With an average of 10h and 0min of daylight, December has the shortest days of the year.

How many hours of daylight does Sedco Hills have in December?

The average day length in December is 9h and 58min.

When are sunrise and sunset in December in Sedco Hills?

In December, on the first day of the month, sunrise is at 6:36 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 4:51 pm PST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 6.6h of sunshine.

How many hours of sunshine does Sedco Hills have in December?

The average sunshine duration in December is 6.6h.

When is the lowest UV index?

The month with the lowest UV index is December, with an average maximum UV index of 3.

What is the UV index reading in December in Sedco Hills?

In Sedco Hills, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Sedco Hills, CA

Average temperature in December - Sedco Hills, CA
  • Average high temperature in December: 61.5°F

The warmest month (with the highest average high temperature) is August (89.1°F).
The month with the lowest average high temperature is December (61.5°F).

  • Average low temperature in December: 43.7°F

The month with the highest average low temperature is August (63.3°F).
The coldest month (with the lowest average low temperature) is December (43.7°F).

Average pressure in December
Sedco Hills, CA

Average pressure in December - Sedco Hills, CA
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in December
Sedco Hills, CA

Average wind speed in December - Sedco Hills, CA
  • Average wind speed in December: 4.7mph

The windiest month (with the highest average wind speed) is April (5.4mph).
The calmest months (with the lowest average wind speed) are August and September (4.1mph).

Average humidity in December
Sedco Hills, CA

Average humidity in December - Sedco Hills, CA
  • Average humidity in December: 57%

The month with the highest relative humidity is May (62%).
The months with the lowest relative humidity are August and November (50%).

Average rainfall in December
Sedco Hills, CA

Average rainfall in December - Sedco Hills, CA
  • Average rainfall in December: 0.43"

The wettest month (with the highest rainfall) is February (0.55").
The driest month (with the least rainfall) is June (0").

Average rainfall days in December
Sedco Hills, CA

Average rainfall days in December - Sedco Hills, CA
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.8 days).

Average daylight in December /
Average sunshine in December
Sedco Hills, CA

Average daylight in December / Average sunshine in December - Sedco Hills, CA
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 6h and 4min

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 36min).

Average sunshine days in December
Sedco Hills, CA

Average sunshine days in December - Sedco Hills, CA
  • Average sunshine days in December: 25 days

The month with the most sunshine days is June (28.6 days).
The month with the least sunshine days is February (22.8 days).

Average UV index in December
Sedco Hills, CA

Average UV index in December - Sedco Hills, CA
  • Average UV index in December: 3

The month with the highest UV index is August (UV index 7).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in December
Sedco Hills, CA

Average cloud cover in December - Sedco Hills, CA
  • Average cloud cover in December: 24

The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in December
Sedco Hills, CA

Average visibility in December - Sedco Hills, 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).

Sedco Hills, California, USA

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