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 arrival of December corresponds with a light shift in temperature, down from an icy 4.5°C (40.1°F) in November to a subzero cold -0.1°C (31.8°F). During December nights, Fortezza witnesses a consistent average temperature of -8.4°C (16.9°F).Humidity
The average relative humidity in December is 81%.Rainfall
In Fortezza, in December, it is raining for 9 days, with typically 12mm (0.47") of accumulated precipitation. Throughout the year, in Fortezza, there are 142.1 rainfall days, and 301mm (11.85") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Fortezza. In December, it is snowing for 11.1 days. Throughout December, 63mm (2.48") of snow is accumulated. In Fortezza, during the entire year, snow falls for 63.2 days and aggregates up to 459mm (18.07") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 36min of daylight.On the first day of December in Fortezza, sunrise is at 07:38 and sunset at 16:27. On the last day of the month, sunrise is at 07:58 and sunset at 16:35 CET.
Sunshine
In December, the average sunshine in Fortezza is 6.3h.UV index
The months with the lowest UV index in Fortezza are January through April, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Fortezza in December?
What is the average humidity in December in Fortezza?
How much does it rain in Fortezza in December?
How many days does it snow in December in Fortezza?
What is the month with the shortest days in Fortezza?
How many hours of daylight does Fortezza have in December?
When is the sunrise / sunset in December in Fortezza?
How many hours of sunshine does Fortezza have in December?
What are the months with the lowest UV index in Fortezza?
What is the UV index reading in December in Fortezza?
Average temperature in December
Fortezza, Italy
- Average high temperature in December: -0.1°C
The warmest month (with the highest average high temperature) is July (20.2°C).
The month with the lowest average high temperature is January (-1.1°C).
- Average low temperature in December: -8.4°C
The month with the highest average low temperature is August (7.5°C).
The coldest month (with the lowest average low temperature) is January (-10°C).
Average pressure in December
Fortezza, Italy
- Average pressure in December: 1020.3mbar
The month with the highest atmospheric pressure is December (1020.3mbar).
The month with the lowest atmospheric pressure is May (1015.3mbar).
Average wind speed in December
Fortezza, Italy
- Average wind speed in December: 6.4km/h
The windiest month (with the highest average wind speed) is February (7.2km/h).
The calmest months (with the lowest average wind speed) are August and November (5.6km/h).
Average humidity in December
Fortezza, Italy
- Average humidity in December: 81%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is July (76%).
Average rainfall in December
Fortezza, Italy
- Average rainfall in December: 12mm
The wettest month (with the highest rainfall) is August (42mm).
The driest month (with the least rainfall) is February (11mm).
Average rainfall days in December
Fortezza, Italy
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in December
Fortezza, Italy
- Average snowfall in December: 63mm
The month with the highest snowfall is November (124mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Fortezza, Italy
- Average snowfall days in December: 11.1 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Fortezza, Italy
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).
Average sunshine days in December
Fortezza, Italy
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in December
Fortezza, Italy
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Fortezza, Italy
- Average cloud cover in December: 32
The month with the most cloud cover is November (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Fortezza, Italy
- Average visibility in December: 8km
The months with the highest visibility are January, February, March, May, June, July, August, October and December (8km).
The months with the lowest visibility are April, September and November (7km).
