December weather forecastKostolné, Slovakia

December

Weather in December

December, the first month of the winter in Kostolné, is also a wintry month, with an average temperature varying between 2.5°C (36.5°F) and -1.9°C (28.6°F).

Temperature

The start of December involves a temperature drop, moving from a frosty 8.3°C (46.9°F) in November to a cold 2.5°C (36.5°F). A mean low-temperature of -1.9°C (28.6°F) is a distinguishing feature of December, indicating a slight dip from daytime highs.

Humidity

The average relative humidity in December is 86%.

Rainfall

In December, the rain falls for 10.6 days. Throughout December, 31mm (1.22") of precipitation is accumulated. Throughout the year, in Kostolné, there are 129.9 rainfall days, and 342mm (13.46") of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Kostolné. In Kostolné, during December, snow falls for 5.5 days and regularly aggregates up to 35mm (1.38") of snow. In Kostolné, Slovakia, during the entire year, snow falls for 25.1 days and aggregates up to 206mm (8.11") of snow.

Daylight

With an average of 8h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 07:21 and sunset at 15:55. On the last day of December, in Kostolné, sunrise is at 07:41 and sunset at 16:02 CET.

Sunshine

The average sunshine in December is 4.3h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: A daily high UV index of 2 in December leads to these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.

Frequently asked questions

The high-temperature, in December, in Kostolné, is 2.5°C (36.5°F), while the low-temperature averages to -1.9°C (28.6°F).

In December, the average relative humidity in Kostolné is 86%.

In Kostolné, Slovakia, during December, the rain falls for 10.6 days and regularly aggregates up to 31mm (1.22") of precipitation.

In December, in Kostolné, Slovakia, it is snowing for 5.5 days. Throughout December, 35mm (1.38") of snow is accumulated.

With an average of 8h and 24min of daylight, December has the shortest days of the year.

In Kostolné, the average day length in December is 8h and 21min.

On the first day of December in Kostolné, sunrise is at 07:21 and sunset at 15:55. On the last day of the month, sunrise is at 07:41 and sunset at 16:02 CET.

In December, the average sunshine duration is 4.3h.

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Kostolné.

In Kostolné, Slovakia, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Kostolné, Slovakia

  • Average high temperature in December: 2.5°C

The warmest month (with the highest average high temperature) is August (26.5°C).
The month with the lowest average high temperature is January (1°C).

  • Average low temperature in December: -1.9°C

The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-4.1°C).

Average pressure in December
Kostolné, Slovakia

  • Average pressure in December: 1019.9mbar

The month with the highest atmospheric pressure is December (1019.9mbar).
The month with the lowest atmospheric pressure is June (1014.6mbar).

Average wind speed in December
Kostolné, Slovakia

  • Average wind speed in December: 10.4km/h

The windiest month (with the highest average wind speed) is March (12.1km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).

Average humidity in December
Kostolné, Slovakia

  • Average humidity in December: 86%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (63%).

Average rainfall in December
Kostolné, Slovakia

  • Average rainfall in December: 31mm

The wettest month (with the highest rainfall) is June (45mm).
The driest month (with the least rainfall) is April (18mm).

Average rainfall days in December
Kostolné, Slovakia

  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is June (14.9 days).
The months with the least rainy days are January and February (8.5 days).

Average snowfall in December
Kostolné, Slovakia

  • Average snowfall in December: 35mm

The month with the highest snowfall is January (92mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December
Kostolné, Slovakia

  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Kostolné, Slovakia

  • Average daylight in December: 8h and 24min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 4h and 18min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

Average sunshine days in December
Kostolné, Slovakia

  • Average sunshine days in December: 14.7 days

The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is June (13.1 days).

Average UV index in December
Kostolné, Slovakia

  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Kostolné, Slovakia

  • Average cloud cover in December: 57

The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in December
Kostolné, Slovakia

  • Average visibility in December: 8km

The month with the highest visibility is August (10km).
The month with the lowest visibility is January (7km).