December weather forecastShandon, CA
December
Weather in December
December, the first month of the winter in Shandon, is still a mild month, with an average temperature fluctuating between 57.7°F (14.3°C) and 41.9°F (5.5°C).Temperature
December, known for its average high temperature of 57.7°F (14.3°C) and an average low temperature of 41.9°F (5.5°C), is the coldest month.Humidity
In Shandon, California, the average relative humidity in December is 66%.Rainfall
In December, the rain falls for 7.6 days. Throughout December, 1.26" (32mm) of precipitation is accumulated. Throughout the year, there are 55.4 rainfall days, and 7.91" (201mm) of precipitation is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 6:53 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:58 pm PST.
Sunshine
February and December, with an average of 6.3h of sunshine, are months with the least sunshine in Shandon.UV index
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 medium health hazard from exposure to the Sun's UV rays for the average person.Note: The UV index of 3 during December translates into the following guidance:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Shandon, CA
- Average high temperature in December: 57.7°F
The warmest months (with the highest average high temperature) are July and August (88.3°F).
The month with the lowest average high temperature is December (57.7°F).
- Average low temperature in December: 41.9°F
The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in December
Shandon, CA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in December
Shandon, CA
- Average wind speed in December: 5.1mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).
Average humidity in December
Shandon, CA
- Average humidity in December: 66%
The month with the highest relative humidity is February (68%).
The month with the lowest relative humidity is September (46%).
Average rainfall in December
Shandon, CA
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is March (1.65").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in December
Shandon, CA
- Average rainfall days in December: 7.6 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).
Average daylight in December /
Average sunshine in December
Shandon, 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: 6h and 18min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 18min).
Average sunshine days in December
Shandon, CA
- Average sunshine days in December: 22.3 days
The month with the most sunshine days is August (29.4 days).
The month with the least sunshine days is February (20 days).
Average UV index in December
Shandon, 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 February, November and December (UV index 3).
Average cloud cover in December
Shandon, CA
- Average cloud cover in December: 29
The month with the most cloud cover is March (Cloud cover 31).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in December
Shandon, 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).
