December weather forecastOrleans, CA
December
Weather in December
The first month of the winter, December, is also a frosty month in Orleans, California, with an average temperature fluctuating between 30.7°F (-0.7°C) and 47.1°F (8.4°C).Temperature
Orleans's December weather, with an average high temperature of 47.1°F (8.4°C) and an average low temperature of 30.7°F (-0.7°C), tends to be the coldest of the year.Humidity
In December, the average relative humidity is 81%.Rainfall
In Orleans, in December, during 16 rainfall days, 6.54" (166mm) of precipitation is typically accumulated. Throughout the year, there are 127.2 rainfall days, and 39.02" (991mm) of precipitation is accumulated.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows in Orleans. Throughout December, in the average 0.5 snowfall days, it receives 0.39" (10mm) of snow. In Orleans, during the entire year, snow falls for 3.3 days and aggregates up to 2.83" (72mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 4:45 pm. On the last day of December, in Orleans, sunrise is at 7:39 am and sunset at 4:55 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 4.8h of sunshine.UV index
February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Boost your sun resistance with garments that are densely woven yet spacious. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Orleans, CA
- Average high temperature in December: 47.1°F
The warmest month (with the highest average high temperature) is August (83.3°F).
The month with the lowest average high temperature is December (47.1°F).
- Average low temperature in December: 30.7°F
The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is December (30.7°F).
Average pressure in December
Orleans, CA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in December
Orleans, CA
- Average wind speed in December: 4.6mph
The windiest month (with the highest average wind speed) is March (5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Orleans, CA
- Average humidity in December: 81%
The month with the highest relative humidity is March (84%).
The month with the lowest relative humidity is August (61%).
Average rainfall in December
Orleans, CA
- Average rainfall in December: 6.54"
The wettest month (with the highest rainfall) is January (7.17").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in December
Orleans, CA
- Average rainfall days in December: 16 days
The month with the highest number of rainy days is March (19.3 days).
The months with the least rainy days are July and August (2.3 days).
Average snowfall in December
Orleans, CA
- Average snowfall in December: 0.39"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Orleans, CA
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Orleans, CA
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 48min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in December
Orleans, CA
- Average sunshine days in December: 14 days
The month with the most sunshine days is July (27.6 days).
The month with the least sunshine days is March (10.3 days).
Average UV index in December
Orleans, CA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in December
Orleans, CA
- Average cloud cover in December: 50
The month with the most cloud cover is March (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in December
Orleans, CA
- Average visibility in December: 4mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are March, April and December (4mi).
