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
In Java, California, the lowest average temperatures are observed in December, with a high of 59°F (15°C) and a low of 45.7°F (7.6°C).Humidity
January and December, with an average relative humidity of 40%, are the most humid months.Rainfall
In Java, in December, it is raining for 3.7 days, with typically 0.43" (11mm) of accumulated precipitation. Throughout the year, in Java, California, there are 41.8 rainfall days, and 4.21" (107mm) of precipitation is accumulated.Daylight
The month with the shortest days in Java is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:28 am and sunset at 4:27 pm. On the last day of December, sunrise is at 6:46 am and sunset at 4:38 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 7h of sunshine.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 3 during December translates into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
What is the usual temperature for Java in December?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Java have in December?
When is the lowest UV index?
What is the UV index intensity in December in Java?
Average temperature in December
Java, CA
- Average high temperature in December: 59°F
The warmest month (with the highest average high temperature) is July (102.6°F).
The month with the lowest average high temperature is December (59°F).
- Average low temperature in December: 45.7°F
The month with the highest average low temperature is August (83.8°F).
The coldest month (with the lowest average low temperature) is December (45.7°F).
Average pressure in December
Java, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.75"Hg).
Average wind speed in December
Java, CA
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is April (9mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in December
Java, CA
- Average humidity in December: 40%
The months with the highest relative humidity are January and December (40%).
The month with the lowest relative humidity is June (14%).
Average rainfall in December
Java, CA
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is July (0.67").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Java, CA
- Average rainfall days in December: 3.7 days
The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is June (1.1 days).
Average daylight in December /
Average sunshine in December
Java, 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 54min).
- Average sunshine in December: 7h and 0min
The months with the most sunshine are June and August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in December
Java, CA
- Average sunshine days in December: 26 days
The month with the most sunshine days is November (28.1 days).
The month with the least sunshine days is July (17.9 days).
Average UV index in December
Java, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Java, CA
- Average cloud cover in December: 19
The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in December
Java, 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).
Java, California, USA
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