December weather forecastSkytop, CA
December
Weather in December
The first month of the winter, December, is also a fresh month in Skytop, California, with an average temperature fluctuating between 52°F (11.1°C) and 37°F (2.8°C).Temperature
December, on average, is the coldest month, registering a high temperature of 52°F (11.1°C) and a low of 37°F (2.8°C).Humidity
The months with the highest humidity in Skytop are January and December, with an average relative humidity of 47%.Rainfall
In Skytop, in December, during 2.3 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. In Skytop, during the entire year, the rain falls for 34.1 days and collects up to 2.64" (67mm) of precipitation.Snowfall
February through October and December are months without snowfall.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 6:41 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 4:47 pm PST.
Sunshine
January and December, with an average of 7.1h of sunshine, are months with the least sunshine.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 3 in December leads to these guidelines:
Adopt protective measures - It is advised to guard against sun damage. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Skytop, CA
- Average high temperature in December: 52°F
The warmest month (with the highest average high temperature) is July (95°F).
The month with the lowest average high temperature is December (52°F).
- Average low temperature in December: 37°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is December (37°F).
Average pressure in December
Skytop, CA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in December
Skytop, CA
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is May (9.1mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).
Average humidity in December
Skytop, CA
- Average humidity in December: 47%
The months with the highest relative humidity are January and December (47%).
The month with the lowest relative humidity is August (20%).
Average rainfall in December
Skytop, CA
- Average rainfall in December: 0.24"
The wettest month (with the highest rainfall) is January (0.35").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Skytop, CA
- Average rainfall days in December: 2.3 days
The month with the highest number of rainy days is March (4.3 days).
The month with the least rainy days is June (1.3 days).
Average snowfall in December
Skytop, CA
- Average snowfall in December: 0"
The month with the highest snowfall is November (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and December (0").
Average snowfall days in December
Skytop, CA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Skytop, CA
- Average daylight in December: 9h and 48min
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 48min).
- Average sunshine in December: 7h and 6min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 6min).
Average sunshine days in December
Skytop, CA
- Average sunshine days in December: 28.1 days
The month with the most sunshine days is December (28.1 days).
The month with the least sunshine days is July (23.6 days).
Average UV index in December
Skytop, CA
- Average UV index in December: 3
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Skytop, CA
- Average cloud cover in December: 17
The months with the most cloud cover are January, March and December (Cloud cover 17).
The months with the least cloud cover are June, August and September (Cloud cover 5).
Average visibility in December
Skytop, 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).





