December weather forecast
Grosio, Italy

December

Weather in December

The first month of the winter, December, is also a subzero cold month in Grosio, Italy, with an average temperature varying between -3°C (26.6°F) and -11.3°C (11.7°F).

Temperature

The transition into December is accompanied by a slight temperature decrease, with the average high-temperature shifting from an icy 0.7°C (33.3°F) in November to a freezing cold -3°C (26.6°F). Nighttime temperature in Grosio experiences an average drop to an extreme cold -11.3°C (11.7°F) in December.

Humidity

In Grosio, the average relative humidity in December is 85%.

Rainfall

In December, in Grosio, Italy, the rain falls for 7 days. Throughout December, 69mm (2.72") of precipitation is accumulated. Throughout the year, there are 199 rainfall days, and 1288mm (50.71") of precipitation is accumulated.

Snowfall

Months with snowfall in Grosio are January through June, September through December. In Grosio, during December, snow falls for 15.8 days and regularly aggregates up to 483mm (19.02") of snow. In Grosio, during the entire year, snow falls for 106.9 days and aggregates up to 3343mm (131.61") of snow.

Daylight

With an average of 8h and 42min of daylight, December has the shortest days of the year in Grosio.
On the first day of the month, sunrise is at 07:41 and sunset at 16:34. On the last day of December, sunrise is at 08:01 and sunset at 16:42 CET.

Sunshine

In Grosio, the average sunshine in December is 5.5h.

UV index

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.

Frequently asked questions

How cold is it in Grosio in December?
December temperatures in Grosio vary between a high-temperature of -3°C (26.6°F) and a low-temperature of -11.3°C (11.7°F).
What is the average humidity in December in Grosio?
In December, the average relative humidity in Grosio, Italy, is 85%.
How much does it rain in Grosio in December?
In Grosio, during December, the rain falls for 7 days and regularly aggregates up to 69mm (2.72") of precipitation.
How much does it snow in Grosio in December?
In Grosio, Italy, during December, snow falls for 15.8 days and regularly aggregates up to 483mm (19.02") of snow.
What is the month with the shortest days in Grosio?
The month with the shortest days is December, with an average of 8h and 42min of daylight.
What is the average length of the day in December in Grosio?
In Grosio, Italy, the average day length in December is 8h and 41min.
When are sunrise and sunset in December in Grosio?
In December, on the first day of the month, sunrise is at 07:41 and sunset at 16:34. On the last day of the month, sunrise is at 08:01 and sunset at 16:42 CET.
How many hours of sunshine does Grosio have in December?
The average sunshine duration in December in Grosio, Italy, is 5.5h.
What is the UV index reading in December in Grosio?
The average daily maximum UV index in December in Grosio, Italy, is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Grosio, Italy
  • Average high temperature in December: -3°C

The warmest month (with the highest average high temperature) is July (15.8°C).
The month with the lowest average high temperature is January (-4.2°C).

  • Average low temperature in December: -11.3°C

The month with the highest average low temperature is August (5.9°C).
The coldest month (with the lowest average low temperature) is January (-12.5°C).

Average pressure in December
Grosio, Italy
  • Average pressure in December: 1020.5mbar

The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).

Average wind speed in December
Grosio, Italy
  • Average wind speed in December: 9km/h

The windiest month (with the highest average wind speed) is December (9km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).

Average humidity in December
Grosio, Italy
  • Average humidity in December: 85%

The month with the highest relative humidity is April (92%).
The month with the lowest relative humidity is July (81%).

Average rainfall in December
Grosio, Italy
  • Average rainfall in December: 69mm

The wettest month (with the highest rainfall) is August (159mm).
The driest month (with the least rainfall) is January (54mm).

Average rainfall days in December
Grosio, Italy
  • Average rainfall days in December: 7 days

The months with the highest number of rainy days are June and July (26.4 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in December
Grosio, Italy
  • Average snowfall in December: 483mm

The month with the highest snowfall is November (750mm).
The months with the least snowfall are July and August (0mm).

Average snowfall days in December
Grosio, Italy
  • Average snowfall days in December: 15.8 days

The month with the highest number of snowfall days is March (19.5 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in December /
Average sunshine in December
Grosio, Italy
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 5h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is November (Average sunshine: 4h and 24min).

Average sunshine days in December
Grosio, Italy
  • Average sunshine days in December: 13.5 days

The month with the most sunshine days is December (13.5 days).
The month with the least sunshine days is June (2.3 days).

Average UV index in December
Grosio, Italy
  • Average UV index in December: 2

The months with the highest UV index are June, July, August and September (UV index 3).
The months with the lowest UV index are January, February, April, October and November (UV index 1).

Average cloud cover in December
Grosio, Italy
  • Average cloud cover in December: 43

The month with the most cloud cover is April (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 41).

Average visibility in December
Grosio, Italy
  • Average visibility in December: 8km

The months with the highest visibility are June, July, August and December (8km).
The months with the lowest visibility are March, April and November (6km).

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