December weather forecast
Shandon, CA

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Weather in December

December, the first month of the winter in Shandon, is still a mild month, with an average temperature fluctuating between 57.7°F (14.3°C) and 41.9°F (5.5°C).

Temperature

December, known for its average high temperature of 57.7°F (14.3°C) and an average low temperature of 41.9°F (5.5°C), is the coldest month.

Humidity

In Shandon, California, the average relative humidity in December is 66%.

Rainfall

In December, the rain falls for 7.6 days. Throughout December, 1.26" (32mm) of precipitation is accumulated. Throughout the year, there are 55.4 rainfall days, and 7.91" (201mm) of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 48min of daylight.
On the first day of December, sunrise is at 6:53 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:58 pm PST.

Sunshine

February and December, with an average of 6.3h of sunshine, are months with the least sunshine in Shandon.

UV index

February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The UV index of 3 during December translates into the following guidance:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

In Shandon, December is the coldest month, with temperatures averaging a high of 57.7°F (14.3°C) and a low of 41.9°F (5.5°C).

What is the temperature in December?

December temperatures vary between a high-temperature of 57.7°F (14.3°C) and a low-temperature of 41.9°F (5.5°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in September is calculated to be 86°F (30°C).

What is the average humidity in December?

In Shandon, the average relative humidity in December is 66%.

How much does it rain in December?

In Shandon, in December, it is raining for 7.6 days, with typically 1.26" (32mm) of accumulated precipitation.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 48min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 47min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:53 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:58 pm PST.

What are the months with the least sunshine in Shandon?

The months with the least sunshine in Shandon are February and December, with an average of 6.3h of sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 6.3h.

What are the months with the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Shandon, CA

Average temperature in December - Shandon, CA
  • Average high temperature in December: 57.7°F

The warmest months (with the highest average high temperature) are July and August (88.3°F).
The month with the lowest average high temperature is December (57.7°F).

  • Average low temperature in December: 41.9°F

The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).

Average pressure in December
Shandon, CA

Average pressure in December - Shandon, CA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).

Average wind speed in December
Shandon, CA

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

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).

Average humidity in December
Shandon, CA

Average humidity in December - Shandon, CA
  • Average humidity in December: 66%

The month with the highest relative humidity is February (68%).
The month with the lowest relative humidity is September (46%).

Average rainfall in December
Shandon, CA

Average rainfall in December - Shandon, CA
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is March (1.65").
The driest month (with the least rainfall) is August (0.04").

Average rainfall days in December
Shandon, CA

Average rainfall days in December - Shandon, CA
  • Average rainfall days in December: 7.6 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).

Average daylight in December /
Average sunshine in December
Shandon, CA

Average daylight in December / Average sunshine in December - Shandon, CA
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 6h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 18min).

Average sunshine days in December
Shandon, CA

Average sunshine days in December - Shandon, CA
  • Average sunshine days in December: 22.3 days

The month with the most sunshine days is August (29.4 days).
The month with the least sunshine days is February (20 days).

Average UV index in December
Shandon, CA

Average UV index in December - Shandon, CA
  • Average UV index in December: 3

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are February, November and December (UV index 3).

Average cloud cover in December
Shandon, CA

Average cloud cover in December - Shandon, CA
  • Average cloud cover in December: 29

The month with the most cloud cover is March (Cloud cover 31).
The months with the least cloud cover are July and August (Cloud cover 5).

Average visibility in December
Shandon, CA

Average visibility in December - Shandon, 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).

Shandon, California, USA

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