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
The commencement of December indicates a gentle shift in the average high-temperature, receding from November's fresh 12.8°C (55°F) to a chilly 8.2°C (46.8°F). Spello in December experiences a low-temperature average of 1.8°C (35.2°F).Humidity
In Spello, the average relative humidity in December is 82%.Rainfall
In Spello, in December, during 13.3 rainfall days, 42mm (1.65") of precipitation is typically accumulated. In Spello, during the entire year, the rain falls for 164.8 days and collects up to 540mm (21.26") of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Spello, during December, snow falls for 1.7 days and regularly aggregates up to 12mm (0.47") of snow. Throughout the year, in Spello, there are 8.8 snowfall days, and 96mm (3.78") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of December in Spello, sunrise is at 07:21 and sunset at 16:35. On the last day of the month, sunrise is at 07:40 and sunset at 16:44 CET.
Sunshine
The average sunshine in December is 6.1h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Spello. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the UV index of 2 transforms into the following advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Spello in December?
What is the average humidity in December in Spello?
How much does it rain in Spello in December?
How many days does it snow in December in Spello?
What is the month with the shortest days in Spello?
How many hours of daylight does Spello have in December?
When are sunrise and sunset in December in Spello?
How long on average sun shines in December in Spello?
What is the month with the lowest UV index in Spello?
What is the UV index intensity in December in Spello?
Average temperature in December
Spello, Italy
- Average high temperature in December: 8.2°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in December: 1.8°C
The month with the highest average low temperature is August (15.3°C).
The coldest months (with the lowest average low temperature) are January and February (0.8°C).
Average pressure in December
Spello, 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 (1013.6mbar).
Average wind speed in December
Spello, Italy
- Average wind speed in December: 9.7km/h
The windiest month (with the highest average wind speed) is March (11.5km/h).
The calmest month (with the lowest average wind speed) is July (7.7km/h).
Average humidity in December
Spello, Italy
- Average humidity in December: 82%
The months with the highest relative humidity are January and November (83%).
The month with the lowest relative humidity is August (62%).
Average rainfall in December
Spello, Italy
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is May (84mm).
The driest month (with the least rainfall) is August (21mm).
Average rainfall days in December
Spello, Italy
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is August (8.1 days).
Average snowfall in December
Spello, Italy
- Average snowfall in December: 12mm
The month with the highest snowfall is February (44mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Spello, Italy
- Average snowfall days in December: 1.7 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
Spello, 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 months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in December
Spello, Italy
- Average sunshine days in December: 14.4 days
The month with the most sunshine days is August (21.6 days).
The month with the least sunshine days is May (8.8 days).
Average UV index in December
Spello, 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
Spello, Italy
- Average cloud cover in December: 35
The months with the most cloud cover are January and February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in December
Spello, 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).
