December weather forecast
Vaajakoski, Finland

December

Weather in December

The first month of the winter, December, is also a subzero cold month in Vaajakoski, Finland, with temperature in the range of an average high of -2.6°C (27.3°F) and an average low of -5.9°C (21.4°F).

Temperature

Vaajakoski experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a cold 1.5°C (34.7°F) in November to a freezing cold -2.6°C (27.3°F). December is characterized by a steady nighttime low-temperature of -5.9°C (21.4°F).

Humidity

The average relative humidity in December in Vaajakoski is 94%.

Rainfall

In Vaajakoski, in December, it is raining for 6 days, with typically 33mm (1.3") of accumulated precipitation. Throughout the year, there are 121.2 rainfall days, and 403mm (15.87") of precipitation is accumulated.

Snowfall

Months with snowfall are January through June, September through December. The month with the most snowfall is December, when snow falls for 19.3 days and typically aggregates up to 185mm (7.28") of snow.

Daylight

With an average of 5h and 18min of daylight, December has the shortest days of the year in Vaajakoski.
On the first day of December, sunrise is at 09:13 and sunset at 14:58. On the last day of the month, sunrise is at 09:42 and sunset at 14:57 EET.

Sunshine

December has the least sunshine of the year, with an average of 0.8h of sunshine.

UV index

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 1 during December leads to these instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Frequently asked questions

How cold is it in December?
In December, in Vaajakoski, the average high-temperature is -2.6°C (27.3°F), and the average low-temperature is -5.9°C (21.4°F).
What is the average humidity in December?
In December, the average relative humidity is 94%.
How many days does it rain in December in Vaajakoski?
In Vaajakoski, in December, during 6 rainfall days, 33mm (1.3") of precipitation is typically accumulated.
What is the snowiest month?
The month with the most snowfall is December, when snow falls for 19.3 days and typically aggregates up to 185mm (7.28") of snow.
How much does it snow in December?
In December, it is snowing for 19.3 days. Throughout December, 185mm (7.28") of snow is accumulated.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 5h and 18min of daylight.
How many hours of daylight does Vaajakoski have in December?
The average day length in December is 5h and 15min.
What time are sunrise and sunset in December?
On the first day of December, sunrise is at 09:13 and sunset at 14:58. On the last day of the month, sunrise is at 09:42 and sunset at 14:57 EET.
What is the month with the least sunshine?
The month with the least sunshine is December, with an average of 0.8h of sunshine.
How long on average sun shines in December?
In Vaajakoski, the average sunshine duration in December is 0.8h.
What are the months with the lowest UV index?
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index.
How high is the UV index in December?
The average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
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 - Vaajakoski, Finland
Average temperature in December
Vaajakoski, Finland
  • Average high temperature in December: -2.6°C

The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (-5.5°C).

  • Average low temperature in December: -5.9°C

The month with the highest average low temperature is July (12.2°C).
The coldest month (with the lowest average low temperature) is January (-9.7°C).

Average pressure in December - Vaajakoski, Finland
Average pressure in December
Vaajakoski, Finland
  • Average pressure in December: 1007.6mbar

The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).

Average wind speed in December - Vaajakoski, Finland
Average wind speed in December
Vaajakoski, Finland
  • Average wind speed in December: 12.5km/h

The windiest month (with the highest average wind speed) is December (12.5km/h).
The calmest month (with the lowest average wind speed) is July (9.6km/h).

Average humidity in December - Vaajakoski, Finland
Average humidity in December
Vaajakoski, Finland
  • Average humidity in December: 94%

The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is May (67%).

Average rainfall in December - Vaajakoski, Finland
Average rainfall in December
Vaajakoski, Finland
  • Average rainfall in December: 33mm

The wettest month (with the highest rainfall) is July (50mm).
The driest months (with the least rainfall) are February and March (23mm).

Average rainfall days in December - Vaajakoski, Finland
Average rainfall days in December
Vaajakoski, Finland
  • Average rainfall days in December: 6 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in December - Vaajakoski, Finland
Average snowfall in December
Vaajakoski, Finland
  • Average snowfall in December: 185mm

The month with the highest snowfall is December (185mm).
The months with the least snowfall are July and August (0mm).

Average snowfall days in December - Vaajakoski, Finland
Average snowfall days in December
Vaajakoski, Finland
  • Average snowfall days in December: 19.3 days

The month with the highest number of snowfall days is December (19.3 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in December / Average sunshine in December - Vaajakoski, Finland
Average daylight in December /
Average sunshine in December
Vaajakoski, Finland
  • Average daylight in December: 5h and 2min

The month with the longest days is June (Average daylight: 19h and 42min).
The month with the shortest days is December (Average daylight: 5h and 18min).

  • Average sunshine in December: 0h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 0h and 48min).

Average sunshine days in December - Vaajakoski, Finland
Average sunshine days in December
Vaajakoski, Finland
  • Average sunshine days in December: 9.6 days

The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is December (9.6 days).

Average UV index in December - Vaajakoski, Finland
Average UV index in December
Vaajakoski, Finland
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

Average cloud cover in December - Vaajakoski, Finland
Average cloud cover in December
Vaajakoski, Finland
  • Average cloud cover in December: 80

The month with the most cloud cover is January (Cloud cover 83).
The months with the least cloud cover are July and August (Cloud cover 45).

Average visibility in December - Vaajakoski, Finland
Average visibility in December
Vaajakoski, Finland
  • Average visibility in December: 6km

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

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