December weather forecastSugarloaf, CA
December
Weather in December
December, the first month of the winter in Sugarloaf, is still a cool month, with an average temperature fluctuating between 38.1°F (3.4°C) and 52.7°F (11.5°C).Temperature
December, with average temperatures reaching a high of 52.7°F (11.5°C) and a low of 38.1°F (3.4°C), is the coldest month.Humidity
The most humid month is December, with an average relative humidity of 50%.Rainfall
The month with the most rainfall is December, when the rain falls for 5.5 days and typically aggregates up to 1.34" (34mm) of precipitation.Snowfall
Months with snowfall in Sugarloaf are January through May, November and December. December is the month with the most snowfall. Snow falls for 2.4 days and accumulates 5.12" (130mm) of snow.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 6:35 am and sunset at 4:37 pm. On the last day of December, sunrise is at 6:53 am and sunset at 4:48 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 reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 3 translates into these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sugarloaf, CA
- Average high temperature in December: 52.7°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in December: 38.1°F
The month with the highest average low temperature is August (68.9°F).
The coldest month (with the lowest average low temperature) is December (38.1°F).
Average pressure in December
Sugarloaf, 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 (29.81"Hg).
Average wind speed in December
Sugarloaf, CA
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest months (with the lowest average wind speed) are August and September (5.7mph).
Average humidity in December
Sugarloaf, CA
- Average humidity in December: 50%
The month with the highest relative humidity is December (50%).
The month with the lowest relative humidity is August (26%).
Average rainfall in December
Sugarloaf, CA
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is December (1.34").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Sugarloaf, CA
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is December (5.5 days).
The month with the least rainy days is June (1.2 days).
Average snowfall in December
Sugarloaf, CA
- Average snowfall in December: 5.12"
The month with the highest snowfall is December (5.12").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Sugarloaf, CA
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Sugarloaf, 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: 7h and 6min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 7h and 6min).
Average sunshine days in December
Sugarloaf, CA
- Average sunshine days in December: 23.7 days
The month with the most sunshine days is June (28.4 days).
The month with the least sunshine days is February (21.9 days).
Average UV index in December
Sugarloaf, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Sugarloaf, CA
- Average cloud cover in December: 19
The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in December
Sugarloaf, 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).
