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 snowfall in December
- Average snowfall 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
La Cresta notes the coldest temperatures in December, with a high average of 61.2°F (16.2°C) and a low of 43.2°F (6.2°C).Humidity
The average relative humidity in December is 57%.Rainfall
In La Cresta, in December, during 7.5 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In La Cresta, during the entire year, the rain falls for 64.9 days and collects up to 9.8" (249mm) of precipitation.Snowfall
Months with snowfall are February and December. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In La Cresta, during the entire year, snow falls for 0.5 days and aggregates up to 0.24" (6mm) of snow.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 6:36 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 4:51 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 6.6h of sunshine.UV index
The months with the lowest UV index are November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In December, the UV index of 3 transforms into the following advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
What are December temperatures?
What is the average humidity in December?
How much does it rain in December?
When does it start to snow?
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 long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
La Cresta, CA
- Average high temperature in December: 61.2°F
The warmest month (with the highest average high temperature) is August (88.7°F).
The month with the lowest average high temperature is December (61.2°F).
- Average low temperature in December: 43.2°F
The month with the highest average low temperature is August (63.7°F).
The coldest month (with the lowest average low temperature) is December (43.2°F).
Average pressure in December
La Cresta, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
La Cresta, CA
- Average wind speed in December: 4.7mph
The windiest month (with the highest average wind speed) is April (5.4mph).
The calmest months (with the lowest average wind speed) are August and September (4.2mph).
Average humidity in December
La Cresta, CA
- Average humidity in December: 57%
The month with the highest relative humidity is May (62%).
The month with the lowest relative humidity is August (49%).
Average rainfall in December
La Cresta, CA
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is February (1.89").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
La Cresta, CA
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is March (8.5 days).
The month with the least rainy days is June (1.7 days).
Average snowfall in December
La Cresta, CA
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
La Cresta, CA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
La Cresta, CA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 6h and 4min
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 36min).
Average sunshine days in December
La Cresta, CA
- Average sunshine days in December: 22.2 days
The month with the most sunshine days is June (26.3 days).
The month with the least sunshine days is February (20.7 days).
Average UV index in December
La Cresta, CA
- Average UV index in December: 3
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in December
La Cresta, CA
- Average cloud cover in December: 24
The month with the most cloud cover is March (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in December
La Cresta, 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).
La Cresta, California, USA
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