Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December proves to be the coldest month, recording an average maximum temperature of 57°F (13.9°C) and a minimum temperature of 42.6°F (5.9°C).Humidity
In December, the average relative humidity is 66%.Rainfall
In December, the rain falls for 6.5 days. Throughout December, 0.75" (19mm) of precipitation is accumulated. Throughout the year, there are 47.3 rainfall days, and 5.67" (144mm) of precipitation is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 6:54 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:54 pm PST.
Sunshine
With an average of 6.3h of sunshine, December has the least sunshine of the year.UV index
January, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 3 during December translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
What is the temperature in December in Biola?
What is the average humidity in December?
How many days does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Biola have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Biola, CA
- Average high temperature in December: 57°F
The warmest month (with the highest average high temperature) is July (102°F).
The month with the lowest average high temperature is December (57°F).
- Average low temperature in December: 42.6°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is December (42.6°F).
Average pressure in December
Biola, CA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Biola, CA
- Average wind speed in December: 5.1mph
The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest months (with the lowest average wind speed) are January and November (5mph).
Average humidity in December
Biola, CA
- Average humidity in December: 66%
The month with the highest relative humidity is January (67%).
The month with the lowest relative humidity is July (29%).
Average rainfall in December
Biola, CA
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is February (1.02").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in December
Biola, CA
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is August (1 days).
Average daylight in December /
Average sunshine in December
Biola, CA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in December
Biola, CA
- Average sunshine days in December: 23.7 days
The month with the most sunshine days is August (28.5 days).
The month with the least sunshine days is February (21.5 days).
Average UV index in December
Biola, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in December
Biola, CA
- Average cloud cover in December: 29
The months with the most cloud cover are March and December (Cloud cover 29).
The months with the least cloud cover are July, August and September (Cloud cover 5).
Average visibility in December
Biola, 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).
Biola, California, USA
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