December weather forecastYorba Linda, CA
December
Weather in December
December, the first month of the winter in Yorba Linda, is also an enjoyable month, with temperature in the range of an average high of 64°F (17.8°C) and an average low of 49.5°F (9.7°C).Temperature
Yorba Linda's coldest temperatures are experienced in December, with average high temperatures of 64°F (17.8°C) and lows of 49.5°F (9.7°C).Humidity
The average relative humidity in December is 53%.Rainfall
December is the month with the most rainfall. Rain falls for 6.2 days and accumulates 1.54" (39mm) of precipitation.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 6:38 am and sunset at 4:42 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
January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 4 transforms into these recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Yorba Linda, CA
- Average high temperature in December: 64°F
The warmest month (with the highest average high temperature) is August (86.7°F).
The month with the lowest average high temperature is December (64°F).
- Average low temperature in December: 49.5°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (48.9°F).
Average pressure in December
Yorba Linda, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in December
Yorba Linda, CA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in December
Yorba Linda, CA
- Average humidity in December: 53%
The months with the highest relative humidity are May and June (61%).
The month with the lowest relative humidity is November (49%).
Average rainfall in December
Yorba Linda, CA
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Yorba Linda, CA
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is June (1.2 days).
Average daylight in December /
Average sunshine in December
Yorba Linda, 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 month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in December
Yorba Linda, CA
- Average sunshine days in December: 23 days
The month with the most sunshine days is August (25.9 days).
The month with the least sunshine days is February (21.2 days).
Average UV index in December
Yorba Linda, 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
Yorba Linda, 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
Yorba Linda, 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).
