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, recording an average high temperature of 63.9°F (17.7°C) and a low temperature of 48.4°F (9.1°C), is Chino Hills's coldest month.Humidity
In December, the average relative humidity in Chino Hills is 53%.Rainfall
December is the month with the most rainfall in Chino Hills. Rain falls for 5.5 days and accumulates 0.51" (13mm) of precipitation.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of December in Chino Hills, sunrise is at 6:38 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 4:52 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 6.8h of sunshine.UV index
The months with the lowest UV index are January, February, 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 exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 4 suggests these recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What is the coldest time of year in Chino Hills?
What are the temperatures in Chino Hills in December?
What is the average humidity in December in Chino Hills?
What is the rainiest month in Chino Hills?
How many days does it rain in December in Chino Hills?
What is the month with the shortest days in Chino Hills?
How many hours of daylight does Chino Hills have in December?
When are sunrise and sunset in December in Chino Hills?
What is the month with the least sunshine in Chino Hills?
How many hours of sunshine does Chino Hills have in December?
What is the month with the lowest UV index in Chino Hills?
What is the UV index reading in December in Chino Hills?
Average temperature in December
Chino Hills, CA
- Average high temperature in December: 63.9°F
The warmest month (with the highest average high temperature) is August (87.6°F).
The month with the lowest average high temperature is December (63.9°F).
- Average low temperature in December: 48.4°F
The month with the highest average low temperature is August (65.8°F).
The coldest months (with the lowest average low temperature) are February and December (48.4°F).
Average pressure in December
Chino Hills, 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 (29.87"Hg).
Average wind speed in December
Chino Hills, CA
- Average wind speed in December: 5mph
The windiest months (with the highest average wind speed) are April and May (5.5mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).
Average humidity in December
Chino Hills, CA
- Average humidity in December: 53%
The months with the highest relative humidity are May and June (60%).
The month with the lowest relative humidity is November (48%).
Average rainfall in December
Chino Hills, CA
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is December (0.51").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Chino Hills, CA
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is June (0.9 days).
Average daylight in December /
Average sunshine in December
Chino Hills, 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 July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in December
Chino Hills, CA
- Average sunshine days in December: 23.8 days
The month with the most sunshine days is June (27.3 days).
The month with the least sunshine days is February (21.8 days).
Average UV index in December
Chino Hills, CA
- Average UV index in December: 4
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in December
Chino Hills, 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).
Average visibility in December
Chino Hills, 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).
Chino Hills, California, USA
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