December weather forecast
Zenia, CA

Share

Weather in December

The first month of the winter, December, is still a chilly month in Zenia, California, with an average temperature fluctuating between 46°F (7.8°C) and 30.2°F (-1°C).

Temperature

The coldest period tends to be December, when average temperatures fluctuate between a high of 46°F (7.8°C) and a low of 30.2°F (-1°C).

Humidity

In Zenia, the average relative humidity in December is 80%.

Rainfall

The month with the most rainfall in Zenia is December, when the rain falls for 11.5 days and typically aggregates up to 4.17" (106mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Zenia, California, in December, during 3.8 snowfall days, 5.08" (129mm) of snow is typically accumulated. Throughout the year, in Zenia, there are 21.4 snowfall days, and 28.74" (730mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year in Zenia.
On the first day of December, sunrise is at 7:17 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:58 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 4.7h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. To cut down UV radiation exposure by about half, sport a wide-brim hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
[Resources]

Frequently asked questions

What is the coldest time of year in Zenia?

In Zenia, December is the month with the lowest recorded average temperatures, measuring a high of 46°F (7.8°C) and a low of 30.2°F (-1°C).

What is the average December temperature in Zenia?

In December, the average high-temperature and low-temperature in Zenia are 46°F (7.8°C) and 30.2°F (-1°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 89.6°F (32°C).

What is the average humidity in December in Zenia?

In December, the average relative humidity in Zenia, California, is 80%.

What is the rainiest month in Zenia?

December is the month with the most rainfall in Zenia, California. Rain falls for 11.5 days and accumulates 4.17" (106mm) of precipitation.

How many days does it rain in December in Zenia?

In Zenia, during December, the rain falls for 11.5 days and regularly aggregates up to 4.17" (106mm) of precipitation.

How many days does it snow in December in Zenia?

In Zenia, in December, during 3.8 snowfall days, 5.08" (129mm) of snow is typically accumulated.

What is the month with the shortest days in Zenia?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Zenia?

In Zenia, California, the average day length in December is 9h and 22min.

When are sunrise and sunset in December in Zenia?

On the first day of December in Zenia, California, sunrise is at 7:17 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:58 pm PST.

What is the month with the least sunshine in Zenia?

The month with the least sunshine in Zenia is December, with an average of 4.7h of sunshine.

How long on average sun shines in December in Zenia?

The average sunshine duration in December in Zenia, California, is 4.7h.

When is the lowest UV index in Zenia?

The months with the lowest UV index in Zenia are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Zenia?

The average daily maximum UV index in December in Zenia, California, is 2. A UV Index reading of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Zenia, CA

Average temperature in December - Zenia, CA
  • Average high temperature in December: 46°F

The warmest months (with the highest average high temperature) are July and August (86.5°F).
The month with the lowest average high temperature is December (46°F).

  • Average low temperature in December: 30.2°F

The month with the highest average low temperature is July (51.1°F).
The coldest month (with the lowest average low temperature) is December (30.2°F).

[Resources]

Average pressure in December
Zenia, CA

Average pressure in December - Zenia, CA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

[Resources]

Average wind speed in December
Zenia, CA

Average wind speed in December - Zenia, CA
  • Average wind speed in December: 4mph

The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

[Resources]

Average humidity in December
Zenia, CA

Average humidity in December - Zenia, CA
  • Average humidity in December: 80%

The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is August (52%).

[Resources]

Average rainfall in December
Zenia, CA

Average rainfall in December - Zenia, CA
  • Average rainfall in December: 4.17"

The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is July (0.16").

[Resources]

Average rainfall days in December
Zenia, CA

Average rainfall days in December - Zenia, CA
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (2.3 days).

[Resources]

Average snowfall in December
Zenia, CA

Average snowfall in December - Zenia, CA
  • Average snowfall in December: 5.08"

The month with the highest snowfall is February (7.52").
The months with the least snowfall are June, July, August, September and October (0").

[Resources]

Average snowfall days in December
Zenia, CA

Average snowfall days in December - Zenia, CA
  • Average snowfall days in December: 3.8 days

The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

[Resources]

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

Average daylight in December / Average sunshine in December - Zenia, CA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

[Resources]

Average sunshine days in December
Zenia, CA

Average sunshine days in December - Zenia, CA
  • Average sunshine days in December: 16.6 days

The month with the most sunshine days is July (26 days).
The month with the least sunshine days is March (13.6 days).

[Resources]

Average UV index in December
Zenia, CA

Average UV index in December - Zenia, CA
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

[Resources]

Average cloud cover in December
Zenia, CA

Average cloud cover in December - Zenia, CA
  • Average cloud cover in December: 51

The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 7).

[Resources]

Average visibility in December
Zenia, CA

Average visibility in December - Zenia, CA
  • Average visibility in December: 4mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are March and December (4mi).

[Resources]

Zenia, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location