December weather forecast
Somis, CA

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Weather in December

The first month of the winter, December, is also a moderate month in Somis, California, with an average temperature fluctuating between 59.9°F (15.5°C) and 49.5°F (9.7°C).

Temperature

In Somis, the coldest months are February and December, registering an average high-temperature of 59.9°F (15.5°C).

Humidity

The average relative humidity in December is 58%.

Rainfall

In Somis, during December, the rain falls for 5.4 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Somis, California, during the entire year, the rain falls for 47.4 days and collects up to 7.36" (187mm) of precipitation.

Daylight

The month with the shortest days in Somis is December, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 6:44 am and sunset at 4:46 pm. On the last day of December, in Somis, sunrise is at 7:01 am and sunset at 4:56 pm PST.

Sunshine

The months with the least sunshine in Somis, California, are January, February and December, with an average of 6.8h of sunshine.

UV index

The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: An average maximum UV index of 4 in December leads to these recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

What are the coldest months in Somis?

Somis witnesses its lowest temperatures during February and December, when the average high-temperature reaches 59.9°F (15.5°C).

What are the temperatures in Somis in December?

In December, in Somis, the average high-temperature is 59.9°F (15.5°C), and the average low-temperature is 49.5°F (9.7°C).

What is the average humidity in December in Somis?

In Somis, the average relative humidity in December is 58%.

How much does it rain in Somis in December?

In December, in Somis, the rain falls for 5.4 days. Throughout December, 1.22" (31mm) of precipitation is accumulated.

What is the month with the shortest days in Somis?

The month with the shortest days is December, with an average of 9h and 54min of daylight.

How many hours of daylight does Somis have in December?

In Somis, the average day length in December is 9h and 55min.

When is the sunrise / sunset in December in Somis?

In December, on the first day of the month, sunrise is at 6:44 am and sunset at 4:46 pm. On the last day of the month, in Somis, California, sunrise is at 7:01 am and sunset at 4:56 pm PST.

What is the month with the least sunshine in Somis?

January, February and December, with an average of 6.8h of sunshine, are months with the least sunshine.

How many hours of sunshine does Somis have in December?

The average sunshine duration in December is 6.8h.

What are the months with the lowest UV index in Somis?

January through April, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Somis.

What is the UV index intensity in December in Somis?

In Somis, California, the average daily maximum UV index in December is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe 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
Somis, CA

Average temperature in December - Somis, CA
  • Average high temperature in December: 59.9°F

The warmest month (with the highest average high temperature) is August (75.9°F).
The months with the lowest average high temperature are February and December (59.9°F).

  • Average low temperature in December: 49.5°F

The month with the highest average low temperature is August (63°F).
The coldest month (with the lowest average low temperature) is February (48.9°F).

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Average pressure in December
Somis, CA

Average pressure in December - Somis, CA
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).

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Average wind speed in December
Somis, CA

Average wind speed in December - Somis, CA
  • Average wind speed in December: 6.6mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest months (with the lowest average wind speed) are August and September (4.7mph).

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Average humidity in December
Somis, CA

Average humidity in December - Somis, CA
  • Average humidity in December: 58%

The month with the highest relative humidity is June (69%).
The month with the lowest relative humidity is November (55%).

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Average rainfall in December
Somis, CA

Average rainfall in December - Somis, CA
  • Average rainfall in December: 1.22"

The wettest month (with the highest rainfall) is January (1.38").
The driest months (with the least rainfall) are June and August (0.12").

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Average rainfall days in December
Somis, CA

Average rainfall days in December - Somis, CA
  • Average rainfall days in December: 5.4 days

The month with the highest number of rainy days is March (6.4 days).
The month with the least rainy days is August (1.7 days).

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

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 6h and 5min

The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).

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Average sunshine days in December
Somis, CA

Average sunshine days in December - Somis, CA
  • Average sunshine days in December: 24.7 days

The month with the most sunshine days is October (26.1 days).
The month with the least sunshine days is February (22 days).

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Average UV index in December
Somis, CA

Average UV index in December - Somis, CA
  • Average UV index in December: 4

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).

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Average cloud cover in December
Somis, CA

Average cloud cover in December - Somis, CA
  • Average cloud cover in December: 22

The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in December
Somis, CA

Average visibility in December - Somis, 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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Somis, California, USA

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