Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December is Orleans's coldest month, registering average high temperatures of 47.1°F (8.4°C) and lows of 30.7°F (-0.7°C).Humidity
In December, the average relative humidity in Orleans, California, is 81%.Rainfall
In Orleans, during December, the rain falls for 16 days and regularly aggregates up to 6.54" (166mm) of precipitation. 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 in Orleans, California. 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
December has the shortest days of the year in Orleans, 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
With an average of 4.8h of sunshine, December has the least sunshine of the year.UV index
February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Orleans. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
What is the coldest month in Orleans?
What is the usual temperature for Orleans in December?
What is the average humidity in December in Orleans?
How much does it rain in Orleans in December?
When does it start to snow in Orleans?
What is the month with the shortest days in Orleans?
What is the average length of the day in December in Orleans?
When is the sunrise / sunset in December in Orleans?
What is the month with the least sunshine in Orleans?
How many hours of sunshine does Orleans have in December?
What are the months with the lowest UV index in Orleans?
What is the UV index intensity in December in Orleans?
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 2min
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 5min
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).
Orleans, California, USA
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