December weather forecastKolari, Finland

December

Weather in December

The first month of the winter, December, is also a subzero cold month in Kolari, Finland, with an average temperature varying between -11.3°C (11.7°F) and -6°C (21.2°F).

Temperature

Kolari's weather in December, with an average high-temperature of a still freezing cold -6°C (21.2°F), subtly shifts from November's -3.1°C (26.4°F). In December, Kolari experiences an average nighttime temperature of -11.3°C (11.7°F).

Humidity

In Kolari, the average relative humidity in December is 95%.

Rainfall

In December, the rain falls for 4.2 days. Throughout December, 34mm (1.34") of precipitation is accumulated. Throughout the year, there are 114.1 rainfall days, and 412mm (16.22") of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall. December is the month with the most snowfall. Snow falls for 22.6 days and accumulates 259mm (10.2") of snow.

Daylight

In December, the average length of the day is 1h and 33min.
On the first day of December, sunrise is at 10:42 and sunset at 13:45. On the last day of the month, sunrise is at 11:38 and sunset at 13:18 EET.

Sunshine

In Kolari, the average sunshine in December is 0.7h.

UV index

The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 1 during December translates into the following directions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.

Frequently asked questions

In December, the average high-temperature and low-temperature are -6°C (21.2°F) and -11.3°C (11.7°F) respectively.

The average relative humidity in December is 95%.

In Kolari, during December, the rain falls for 4.2 days and regularly aggregates up to 34mm (1.34") of precipitation.

The month with the most snowfall is December, when snow falls for 22.6 days and typically aggregates up to 259mm (10.2") of snow.

In Kolari, in December, snow falls for 22.6 days, with typically accumulated 259mm (10.2") of snow.

In December, the average day length is 1h and 33min.

On the first day of December, sunrise is at 10:42 and sunset at 13:45. On the last day of the month, sunrise is at 11:38 and sunset at 13:18 EET.

In Kolari, the average sunshine duration in December is 0.7h.

January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index.

In Kolari, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from 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
Kolari, Finland

  • Average high temperature in December: -6°C

The warmest month (with the highest average high temperature) is July (19°C).
The month with the lowest average high temperature is January (-8.9°C).

  • Average low temperature in December: -11.3°C

The month with the highest average low temperature is July (10.3°C).
The coldest month (with the lowest average low temperature) is January (-14.6°C).

Average pressure in December
Kolari, Finland

  • Average pressure in December: 1004.7mbar

The month with the highest atmospheric pressure is May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1004.7mbar).

Average wind speed in December
Kolari, Finland

  • Average wind speed in December: 10km/h

The windiest month (with the highest average wind speed) is March (10.8km/h).
The calmest month (with the lowest average wind speed) is April (9.2km/h).

Average humidity in December
Kolari, Finland

  • Average humidity in December: 95%

The months with the highest relative humidity are January and February (96%).
The month with the lowest relative humidity is June (66%).

Average rainfall in December
Kolari, Finland

  • Average rainfall in December: 34mm

The wettest month (with the highest rainfall) is July (53mm).
The driest month (with the least rainfall) is April (22mm).

Average rainfall days in December
Kolari, Finland

  • Average rainfall days in December: 4.2 days

The months with the highest number of rainy days are June and August (15.7 days).
The month with the least rainy days is February (2.6 days).

Average snowfall in December
Kolari, Finland

  • Average snowfall in December: 259mm

The month with the highest snowfall is December (259mm).
The months with the least snowfall are July and August (0mm).

Average snowfall days in December
Kolari, Finland

  • Average snowfall days in December: 22.6 days

The month with the highest number of snowfall days is December (22.6 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in December /
Average sunshine in December
Kolari, Finland

  • Average daylight in December: 1h and 36min

The month with the longest days is May (Average daylight: 19h and 30min).
The month with the shortest days is June (Average daylight: 0h and 0min).

  • Average sunshine in December: 0h and 42min

The month with the most sunshine is August (Average sunshine: 8h and 54min).
The month with the least sunshine is June (Average sunshine: 0h and 36min).

Average sunshine days in December
Kolari, Finland

  • Average sunshine days in December: 9.1 days

The month with the most sunshine days is October (14.1 days).
The months with the least sunshine days are April and December (9.1 days).

Average UV index in December
Kolari, Finland

  • Average UV index in December: 1

The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).

Average cloud cover in December
Kolari, Finland

  • Average cloud cover in December: 74

The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 50).

Average visibility in December
Kolari, Finland

  • Average visibility in December: 5km

The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are January, February, March, April and December (5km).