December weather forecastLeppävesi, Finland

December

Weather in December

The first month of the winter, December, is still a freezing cold month in Leppävesi, Finland, with an average temperature varying between -5.9°C (21.4°F) and -2.6°C (27.3°F).

Temperature

December's arrival signals a moderate reduction in the average high-temperature, easing from a wintry 1.5°C (34.7°F) in November to a subzero cold -2.6°C (27.3°F). December sees a slight dip to an average low temperature of -5.9°C (21.4°F) from the daytime highs.

Humidity

In December, the average relative humidity is 94%.

Rainfall

In December, the rain falls for 6 days. Throughout December, 33mm (1.3") of precipitation is accumulated. In Leppävesi, during the entire year, the rain falls for 121.2 days and collects up to 403mm (15.87") of precipitation.

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.
On the first day of the month, sunrise is at 09:12 and sunset at 14:57. On the last day of December, sunrise is at 09:42 and sunset at 14:56 EET.

Sunshine

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

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 1 during December morphs into the following directions:
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. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.

Frequently asked questions

December temperatures vary between a high-temperature of -2.6°C (27.3°F) and a low-temperature of -5.9°C (21.4°F).

The average relative humidity in December is 94%.

In Leppävesi, Finland, during December, the rain falls for 6 days and regularly aggregates up to 33mm (1.3") of precipitation.

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.

In Leppävesi, in December, snow falls for 19.3 days, with typically accumulated 185mm (7.28") of snow.

December has the shortest days of the year, with an average of 5h and 18min of daylight.

In December, the average day length is 5h and 15min.

In December, on the first day of the month, sunrise is at 09:12 and sunset at 14:57. On the last day of the month, sunrise is at 09:42 and sunset at 14:56 EET.

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

In December, the average sunshine duration is 0.8h.

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1.

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

  • Average daylight in December: 5h and 18min

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 48min

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
Leppävesi, 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
Leppävesi, 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
Leppävesi, 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
Leppävesi, 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).