December weather forecastChino, CA
December
Weather in December
December, the first month of the winter in Chino, is still a comfortable month, with temperature in the range of an average high of 64.4°F (18°C) and an average low of 47.5°F (8.6°C).Temperature
December is the month when Chino experiences its coldest temperatures, averaging a high of 64.4°F (18°C) and a low of 47.5°F (8.6°C).Humidity
The average relative humidity in December is 51%.Rainfall
December is the month with the most rainfall in Chino, California. Rain falls for 4.7 days and accumulates 0.75" (19mm) 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 the month, sunrise is at 6:38 am and sunset at 4:41 pm. On the last day of December, sunrise is at 6:56 am and sunset at 4:52 pm PST.
Sunshine
The months with the least sunshine are February and 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 estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 4 in December translates into this advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Chino, CA
- Average high temperature in December: 64.4°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is December (64.4°F).
- Average low temperature in December: 47.5°F
The month with the highest average low temperature is August (66.6°F).
The coldest month (with the lowest average low temperature) is February (47.3°F).
Average pressure in December
Chino, 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, CA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in December
Chino, CA
- Average humidity in December: 51%
The month with the highest relative humidity is May (57%).
The month with the lowest relative humidity is November (45%).
Average rainfall in December
Chino, CA
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is December (0.75").
The driest month (with the least rainfall) is June (0").
Average rainfall days in December
Chino, CA
- Average rainfall days in December: 4.7 days
The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.8 days).
Average daylight in December /
Average sunshine in December
Chino, CA
- Average daylight in December: 9h and 54min
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 48min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 48min).
Average sunshine days in December
Chino, CA
- Average sunshine days in December: 25.2 days
The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is February (22.8 days).
Average UV index in December
Chino, CA
- Average UV index in December: 4
The months with the highest UV index are July and 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, CA
- Average cloud cover in December: 22
The months with the most cloud cover are February, March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Chino, 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).
