December weather forecastCasto, Italy
December
Weather in December
The first month of the winter, December, is also an icy month in Casto, Italy, with an average temperature varying between 4.1°C (39.4°F) and -1.6°C (29.1°F).Temperature
December's arrival signals a moderate reduction in the average high-temperature, easing from a chilly 8.3°C (46.9°F) in November to a cold 4.1°C (39.4°F). An average low-temperature of -1.6°C (29.1°F) is anticipated throughout the nights during December.Humidity
With an average relative humidity of 75%, December is the least humid month.Rainfall
In Casto, in December, during 7.5 rainfall days, 59mm (2.32") of precipitation is typically accumulated. In Casto, during the entire year, the rain falls for 210.8 days and collects up to 1353mm (53.27") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Casto, during December, snow falls for 6.3 days and regularly aggregates up to 192mm (7.56") of snow. In Casto, during the entire year, snow falls for 41.9 days and aggregates up to 1219mm (47.99") of snow.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 07:39 and sunset at 16:36. On the last day of the month, sunrise is at 07:59 and sunset at 16:44 CET.
Sunshine
In Casto, the average sunshine in December is 6.2h.UV index
The months with the lowest UV index are January, February, 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 the average person.Note: The UV index of 2 during December leads to these advisories:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. 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
Average temperature in December
Casto, Italy
- Average high temperature in December: 4.1°C
The warmest month (with the highest average high temperature) is August (22.4°C).
The month with the lowest average high temperature is January (3°C).
- Average low temperature in December: -1.6°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-2.8°C).
Average pressure in December
Casto, Italy
- Average pressure in December: 1020mbar
The month with the highest atmospheric pressure is December (1020mbar).
The month with the lowest atmospheric pressure is May (1014.8mbar).
Average wind speed in December
Casto, Italy
- Average wind speed in December: 6.4km/h
The windiest month (with the highest average wind speed) is March (7.3km/h).
The calmest month (with the lowest average wind speed) is October (6km/h).
Average humidity in December
Casto, Italy
- Average humidity in December: 75%
The month with the highest relative humidity is November (82%).
The month with the lowest relative humidity is December (75%).
Average rainfall in December
Casto, Italy
- Average rainfall in December: 59mm
The wettest month (with the highest rainfall) is June (170mm).
The driest month (with the least rainfall) is January (42mm).
Average rainfall days in December
Casto, Italy
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is July (27.1 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in December
Casto, Italy
- Average snowfall in December: 192mm
The month with the highest snowfall is February (344mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Casto, Italy
- Average snowfall days in December: 6.3 days
The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Casto, Italy
- Average daylight in December: 8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 6h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is November (Average sunshine: 5h and 18min).
Average sunshine days in December
Casto, Italy
- Average sunshine days in December: 19.6 days
The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is June (1.2 days).
Average UV index in December
Casto, Italy
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Casto, Italy
- Average cloud cover in December: 31
The month with the most cloud cover is November (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in December
Casto, Italy
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
