December weather forecastJonionys, Lithuania

December

Weather in December

The first month of the winter, December, is also a wintry month in Jonionys, Lithuania, with an average temperature varying between 0.5°C (32.9°F) and -2.9°C (26.8°F).

Temperature

With the onset of December, Jonionys's average high-temperature adjusts, receding from November's icy 5.5°C (41.9°F) to a still wintry 0.5°C (32.9°F). During December, Jonionys's nights hold steady with an average temperature of -2.9°C (26.8°F), barely dropping from the daytime highs.

Humidity

In December, the average relative humidity in Jonionys, Lithuania, is 91%.

Rainfall

In Jonionys, during December, the rain falls for 11.3 days and regularly aggregates up to 35mm (1.38") of precipitation. Throughout the year, in Jonionys, Lithuania, there are 169.3 rainfall days, and 487mm (19.17") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Jonionys, during December, snow falls for 14.2 days and regularly aggregates up to 99mm (3.9") of snow. Throughout the year, in Jonionys, there are 65.7 snowfall days, and 489mm (19.25") of snow is accumulated.

Daylight

With an average of 7h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 08:20 and sunset at 16:04. On the last day of December, in Jonionys, sunrise is at 08:43 and sunset at 16:10 EET.

Sunshine

In December, the average sunshine is 2.5h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 1 during December translates into the following directions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.

Frequently asked questions

In Jonionys, in December, the average high-temperature is 0.5°C (32.9°F), and the average low-temperature is -2.9°C (26.8°F).

In December, the average relative humidity in Jonionys is 91%.

In December, in Jonionys, the rain falls for 11.3 days. Throughout December, 35mm (1.38") of precipitation is accumulated.

In Jonionys, Lithuania, in December, during 14.2 snowfall days, 99mm (3.9") of snow is typically accumulated.

With an average of 7h and 30min of daylight, December has the shortest days of the year.

In December, the average day length in Jonionys is 7h and 28min.

In December, on the first day of the month, sunrise is at 08:20 and sunset at 16:04. On the last day of the month, in Jonionys, sunrise is at 08:43 and sunset at 16:10 EET.

The average sunshine duration in December in Jonionys, Lithuania, is 2.5h.

The months with the lowest UV index in Jonionys, Lithuania, are January, February, November and December, with an average maximum UV index of 1.

In December, the average daily maximum UV index is 1. A UV Index estimate 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
Jonionys, Lithuania

  • Average high temperature in December: 0.5°C

The warmest month (with the highest average high temperature) is July (24°C).
The month with the lowest average high temperature is January (-1.8°C).

  • Average low temperature in December: -2.9°C

The month with the highest average low temperature is July (13.4°C).
The coldest month (with the lowest average low temperature) is January (-6°C).

Average pressure in December
Jonionys, Lithuania

  • Average pressure in December: 1014.8mbar

The month with the highest atmospheric pressure is October (1018mbar).
The month with the lowest atmospheric pressure is July (1012.9mbar).

Average wind speed in December
Jonionys, Lithuania

  • Average wind speed in December: 14km/h

The windiest month (with the highest average wind speed) is December (14km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).

Average humidity in December
Jonionys, Lithuania

  • Average humidity in December: 91%

The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are April and August (71%).

Average rainfall in December
Jonionys, Lithuania

  • Average rainfall in December: 35mm

The wettest month (with the highest rainfall) is July (64mm).
The driest month (with the least rainfall) is February (25mm).

Average rainfall days in December
Jonionys, Lithuania

  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is February (7.7 days).

Average snowfall in December
Jonionys, Lithuania

  • Average snowfall in December: 99mm

The month with the highest snowfall is January (150mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Jonionys, Lithuania

  • Average snowfall days in December: 14.2 days

The month with the highest number of snowfall days is January (18.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Jonionys, Lithuania

  • Average daylight in December: 7h and 30min

The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 30min).

  • Average sunshine in December: 2h and 30min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 6min).

Average sunshine days in December
Jonionys, Lithuania

  • Average sunshine days in December: 8.3 days

The month with the most sunshine days is October (15 days).
The month with the least sunshine days is July (7.5 days).

Average UV index in December
Jonionys, Lithuania

  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in December
Jonionys, Lithuania

  • Average cloud cover in December: 77

The month with the most cloud cover is February (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in December
Jonionys, Lithuania

  • Average visibility in December: 8km

The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).