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
December
Weather in December
Temperature
Start of December brings a slight shift in the average high-temperature, dipping a bit from November's cool 12.9°C (55.2°F) to a chilly 8.1°C (46.6°F). In the month of December, Onelli experiences an average low-temperature of 1.7°C (35.1°F).Humidity
In Onelli, the average relative humidity in December is 81%.Rainfall
In Onelli, in December, it is raining for 13.2 days, with typically 48mm (1.89") of accumulated precipitation. Throughout the year, in Onelli, there are 158.4 rainfall days, and 528mm (20.79") of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In December, it is snowing for 2.1 days. Throughout December, 12mm (0.47") of snow is accumulated. In Onelli, during the entire year, snow falls for 7.9 days and aggregates up to 79mm (3.11") of snow.Daylight
December has the shortest days of the year in Onelli, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 07:18 and sunset at 16:35. On the last day of the month, sunrise is at 07:37 and sunset at 16:44 CET.
Sunshine
In December, the average sunshine is 6.2h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Onelli?
What is the average humidity in December in Onelli?
How many days does it rain in December in Onelli?
How much does it snow in Onelli in December?
What is the month with the shortest days in Onelli?
What is the average length of the day in December in Onelli?
What time are sunrise and sunset in December in Onelli?
How long on average sun shines in December in Onelli?
What are the months with the lowest UV index in Onelli?
How high is the UV index in December in Onelli?
Average temperature in December
Onelli, Italy
- Average high temperature in December: 8.1°C
The warmest month (with the highest average high temperature) is August (29°C).
The month with the lowest average high temperature is January (7.2°C).
- Average low temperature in December: 1.7°C
The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).
Average pressure in December
Onelli, Italy
- Average pressure in December: 1018.6mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is July (1013.7mbar).
Average wind speed in December
Onelli, Italy
- Average wind speed in December: 9.1km/h
The windiest month (with the highest average wind speed) is February (10.5km/h).
The calmest months (with the lowest average wind speed) are July and August (7.1km/h).
Average humidity in December
Onelli, Italy
- Average humidity in December: 81%
The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is August (62%).
Average rainfall in December
Onelli, Italy
- Average rainfall in December: 48mm
The wettest month (with the highest rainfall) is November (76mm).
The driest month (with the least rainfall) is August (18mm).
Average rainfall days in December
Onelli, Italy
- Average rainfall days in December: 13.2 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in December
Onelli, Italy
- Average snowfall in December: 12mm
The month with the highest snowfall is February (40mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Onelli, Italy
- Average snowfall days in December: 2.1 days
The month with the highest number of snowfall days is February (3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Onelli, Italy
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and February (Average sunshine: 6h and 0min).
Average sunshine days in December
Onelli, Italy
- Average sunshine days in December: 14.8 days
The month with the most sunshine days is August (23.9 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in December
Onelli, Italy
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Onelli, Italy
- Average cloud cover in December: 33
The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in December
Onelli, Italy
- Average visibility in December: 9km
The months with the highest visibility are July and August (10km).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (9km).
