December weather forecast
Loyola, CA

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Weather in December

December, the first month of the winter in Loyola, is still a mild month, with an average temperature fluctuating between 44.2°F (6.8°C) and 56.8°F (13.8°C).

Temperature

December is the month when Loyola sees the lowest average temperatures, with a high of 56.8°F (13.8°C) and a low of 44.2°F (6.8°C).

Humidity

The average relative humidity in December is 71%.

Rainfall

In Loyola, California, in December, it is raining for 7.5 days, with typically 0.71" (18mm) of accumulated precipitation. In Loyola, during the entire year, the rain falls for 50 days and collects up to 3.9" (99mm) of precipitation.

Daylight

The month with the shortest days is December, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 7:04 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:01 pm PST.

Sunshine

With an average of 5.9h of sunshine, December has the least sunshine of the year in Loyola.

UV index

The months with the lowest UV index are February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: A daily maximum UV index of 3 in December translates into the following instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

What is the coldest month?

December, with its average high-temperature of 56.8°F (13.8°C) and an average low-temperature of 44.2°F (6.8°C), holds the record as the coldest month.

What are December temperatures?

The high-temperature, in December, in Loyola, is 56.8°F (13.8°C), while the low-temperature averages to 44.2°F (6.8°C).

What is the average humidity in December?

In December, the average relative humidity is 71%.

How many days does it rain in December?

In Loyola, during December, the rain falls for 7.5 days and regularly aggregates up to 0.71" (18mm) of precipitation.

What is the month with the shortest days?

With an average of 9h and 36min of daylight, December has the shortest days of the year.

How many hours of daylight does Loyola have in December?

The average day length in December in Loyola is 9h and 38min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:04 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:01 pm PST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.9h of sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 5.9h.

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.

How high is the UV index in December?

In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents 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
Loyola, CA

Average temperature in December - Loyola, CA
  • Average high temperature in December: 56.8°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is December (56.8°F).

  • Average low temperature in December: 44.2°F

The month with the highest average low temperature is August (56.8°F).
The coldest months (with the lowest average low temperature) are February and December (44.2°F).

Average pressure in December
Loyola, CA

Average pressure in December - Loyola, CA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June and September (29.92"Hg).

Average wind speed in December
Loyola, CA

Average wind speed in December - Loyola, CA
  • Average wind speed in December: 5.3mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.6mph).

Average humidity in December
Loyola, CA

Average humidity in December - Loyola, CA
  • Average humidity in December: 71%

The month with the highest relative humidity is March (73%).
The months with the lowest relative humidity are September and October (63%).

Average rainfall in December
Loyola, CA

Average rainfall in December - Loyola, CA
  • Average rainfall in December: 0.71"

The wettest months (with the highest rainfall) are February and March (0.75").
The driest month (with the least rainfall) is July (0").

Average rainfall days in December
Loyola, CA

Average rainfall days in December - Loyola, CA
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is March (9.6 days).
The month with the least rainy days is August (0.4 days).

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

Average daylight in December / Average sunshine in December - Loyola, CA
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 5h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in December
Loyola, CA

Average sunshine days in December - Loyola, CA
  • Average sunshine days in December: 22.4 days

The month with the most sunshine days is August (30.1 days).
The month with the least sunshine days is March (19.9 days).

Average UV index in December
Loyola, CA

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

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

Average cloud cover in December
Loyola, CA

Average cloud cover in December - Loyola, CA
  • Average cloud cover in December: 33

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 7).

Average visibility in December
Loyola, CA

Average visibility in December - Loyola, 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).

Loyola, California, USA

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