December weather forecastCastellamonte, Italy

December

Weather in December

The first month of the winter, December, is still a cold month in Castellamonte, Italy, with an average temperature fluctuating between -5.9°C (21.4°F) and 0.5°C (32.9°F).

Temperature

December heralds a minor drop in average high-temperature, sliding from November's cold 3.9°C (39°F) to a still wintry 0.5°C (32.9°F). An average low-temperature of -5.9°C (21.4°F) is common in Castellamonte during the nights of December.

Humidity

The average relative humidity in December is 77%.

Rainfall

In Castellamonte, during December, the rain falls for 5.8 days and regularly aggregates up to 61mm (2.4") of precipitation. Throughout the year, there are 186.6 rainfall days, and 1611mm (63.43") of precipitation is accumulated.

Snowfall

Months with snowfall in Castellamonte are January through May, October through December. In Castellamonte, Italy, in December, during 12.7 snowfall days, 397mm (15.63") of snow is typically accumulated. In Castellamonte, during the entire year, snow falls for 78.1 days and aggregates up to 3147mm (123.9") of snow.

Daylight

December has the shortest days of the year in Castellamonte, Italy, with an average of 8h and 48min of daylight.
On the first day of December in Castellamonte, sunrise is at 07:48 and sunset at 16:47. On the last day of the month, sunrise is at 08:08 and sunset at 16:56 CET.

Sunshine

In Castellamonte, the average sunshine in December is 6.2h.

UV index

The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 2 during December leads to these advisories:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.

Frequently asked questions

The high-temperature during December is 0.5°C (32.9°F) and the low-temperature is -5.9°C (21.4°F).

In Castellamonte, Italy, the average relative humidity in December is 77%.

In Castellamonte, Italy, in December, it is raining for 5.8 days, with typically 61mm (2.4") of accumulated precipitation.

In December, in Castellamonte, Italy, it is snowing for 12.7 days. Throughout December, 397mm (15.63") of snow is accumulated.

December has the shortest days of the year in Castellamonte, with an average of 8h and 48min of daylight.

In December, the average day length in Castellamonte is 8h and 47min.

In December, on the first day of the month, sunrise is at 07:48 and sunset at 16:47. On the last day of the month, in Castellamonte, sunrise is at 08:08 and sunset at 16:56 CET.

In December, the average sunshine duration in Castellamonte is 6.2h.

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Castellamonte.

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Castellamonte, Italy

  • Average high temperature in December: 0.5°C

The warmest month (with the highest average high temperature) is July (19.2°C).
The month with the lowest average high temperature is January (-0.8°C).

  • Average low temperature in December: -5.9°C

The month with the highest average low temperature is July (9.7°C).
The coldest month (with the lowest average low temperature) is January (-7.7°C).

Average pressure in December
Castellamonte, Italy

  • Average pressure in December: 1020.4mbar

The month with the highest atmospheric pressure is December (1020.4mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).

Average wind speed in December
Castellamonte, Italy

  • Average wind speed in December: 9.1km/h

The windiest month (with the highest average wind speed) is December (9.1km/h).
The calmest month (with the lowest average wind speed) is October (6.7km/h).

Average humidity in December
Castellamonte, Italy

  • Average humidity in December: 77%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is July (75%).

Average rainfall in December
Castellamonte, Italy

  • Average rainfall in December: 61mm

The wettest month (with the highest rainfall) is June (214mm).
The driest month (with the least rainfall) is January (50mm).

Average rainfall days in December
Castellamonte, Italy

  • Average rainfall days in December: 5.8 days

The months with the highest number of rainy days are June and July (25.3 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in December
Castellamonte, Italy

  • Average snowfall in December: 397mm

The month with the highest snowfall is November (903mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Castellamonte, Italy

  • Average snowfall days in December: 12.7 days

The month with the highest number of snowfall days is February (16 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Castellamonte, 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: 10h and 42min).
The month with the least sunshine is November (Average sunshine: 5h and 18min).

Average sunshine days in December
Castellamonte, Italy

  • Average sunshine days in December: 15.8 days

The month with the most sunshine days is January (15.9 days).
The month with the least sunshine days is June (3.1 days).

Average UV index in December
Castellamonte, Italy

  • Average UV index in December: 2

The months with the highest UV index are June and July (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
Castellamonte, Italy

  • Average cloud cover in December: 32

The month with the most cloud cover is May (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Castellamonte, Italy

  • Average visibility in December: 8km

The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (8km).