December weather forecastWindsor Crest, CA
December
Weather in December
December, the first month of the winter in Windsor Crest, is still a comfortable month, with an average temperature varying between 61.7°F (16.5°C) and 43.5°F (6.4°C).Temperature
December, noted for its average high-temperature of 61.7°F (16.5°C) and an average low-temperature of 43.5°F (6.4°C), is considered the coldest month.Humidity
The average relative humidity in December is 58%.Rainfall
December is the month with the most rainfall. Rain falls for 6.5 days and accumulates 1.81" (46mm) of precipitation.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of December in Windsor Crest, sunrise is at 6:35 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 4:51 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 6.5h of sunshine.UV index
With an average maximum UV index of 3, December is the month 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 rays for the average person.Note: During December, 3 as the daily maximum UV index converts into the following advice:
Act with care - The suggestion to avoid sunburn is emphasized. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Windsor Crest, CA
- Average high temperature in December: 61.7°F
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is December (61.7°F).
- Average low temperature in December: 43.5°F
The month with the highest average low temperature is August (62.2°F).
The coldest month (with the lowest average low temperature) is February (43.3°F).
Average pressure in December
Windsor Crest, CA
- Average pressure in December: 30.06"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
Windsor Crest, CA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).
Average humidity in December
Windsor Crest, CA
- Average humidity in December: 58%
The month with the highest relative humidity is May (65%).
The month with the lowest relative humidity is November (52%).
Average rainfall in December
Windsor Crest, CA
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is December (1.81").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Windsor Crest, CA
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is March (8.2 days).
The month with the least rainy days is June (1.4 days).
Average daylight in December /
Average sunshine in December
Windsor Crest, 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 30min
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 30min).
Average sunshine days in December
Windsor Crest, CA
- Average sunshine days in December: 23.4 days
The month with the most sunshine days is June (26.5 days).
The month with the least sunshine days is February (20.8 days).
Average UV index in December
Windsor Crest, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Windsor Crest, CA
- Average cloud cover in December: 26
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in December
Windsor Crest, 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).
