December weather forecastJanochy, Poland

December

Weather in December

The first month of the winter, December, is also a wintry month in Janochy, Poland, with an average temperature fluctuating between -1.8°C (28.8°F) and 1.5°C (34.7°F).

Temperature

The onset of December is marked by a minor decrease in temperature, transitioning from a frosty 6.3°C (43.3°F) in November to a wintry 1.5°C (34.7°F). In Janochy, the month of December brings a consistent average low-temperature of -1.8°C (28.8°F), slightly cooler than its daytime highs.

Humidity

The average relative humidity in December in Janochy, Poland, is 89%.

Rainfall

In Janochy, in December, during 10.5 rainfall days, 28mm (1.1") of precipitation is typically accumulated. In Janochy, during the entire year, the rain falls for 148.8 days and collects up to 426mm (16.77") of precipitation.

Snowfall

January through May, October through December are months with snowfall in Janochy. In December, in Janochy, Poland, it is snowing for 9.8 days. Throughout December, 64mm (2.52") of snow is accumulated. In Janochy, during the entire year, snow falls for 40.6 days and aggregates up to 274mm (10.79") of snow.

Daylight

With an average of 7h and 42min of daylight, December has the shortest days of the year in Janochy.
On the first day of December in Janochy, sunrise is at 07:24 and sunset at 15:20. On the last day of the month, sunrise is at 07:46 and sunset at 15:26 CET.

Sunshine

The average sunshine in December is 3h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 1 in December transforms into this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

The high-temperature, in December, in Janochy, records 1.5°C (34.7°F), while the low-temperature is -1.8°C (28.8°F).

The average relative humidity in December in Janochy is 89%.

In Janochy, in December, during 10.5 rainfall days, 28mm (1.1") of precipitation is typically accumulated.

In Janochy, Poland, during December, snow falls for 9.8 days and regularly aggregates up to 64mm (2.52") of snow.

December has the shortest days of the year in Janochy, with an average of 7h and 42min of daylight.

In Janochy, the average day length in December is 7h and 40min.

On the first day of December in Janochy, Poland, sunrise is at 07:24 and sunset at 15:20. On the last day of the month, sunrise is at 07:46 and sunset at 15:26 CET.

The average sunshine duration in December in Janochy is 3h.

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

In Janochy, Poland, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's 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
Janochy, Poland

  • Average high temperature in December: 1.5°C

The warmest months (with the highest average high temperature) are July and August (24.3°C).
The month with the lowest average high temperature is January (-1°C).

  • Average low temperature in December: -1.8°C

The month with the highest average low temperature is July (14.1°C).
The coldest month (with the lowest average low temperature) is January (-4.5°C).

Average pressure in December
Janochy, Poland

  • Average pressure in December: 1015.3mbar

The month with the highest atmospheric pressure is October (1017.9mbar).
The month with the lowest atmospheric pressure is July (1013.2mbar).

Average wind speed in December
Janochy, Poland

  • Average wind speed in December: 13.5km/h

The windiest month (with the highest average wind speed) is December (13.5km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).

Average humidity in December
Janochy, Poland

  • Average humidity in December: 89%

The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and August (69%).

Average rainfall in December
Janochy, Poland

  • Average rainfall in December: 28mm

The wettest month (with the highest rainfall) is May (64mm).
The driest month (with the least rainfall) is February (16mm).

Average rainfall days in December
Janochy, Poland

  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in December
Janochy, Poland

  • Average snowfall in December: 64mm

The month with the highest snowfall is January (79mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Janochy, Poland

  • Average snowfall days in December: 9.8 days

The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Janochy, Poland

  • Average daylight in December: 7h and 42min

The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 42min).

  • Average sunshine in December: 3h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 30min).

Average sunshine days in December
Janochy, Poland

  • Average sunshine days in December: 12.5 days

The months with the most sunshine days are March and October (16.3 days).
The month with the least sunshine days is July (8.7 days).

Average UV index in December
Janochy, Poland

  • Average UV index in December: 1

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

Average cloud cover in December
Janochy, Poland

  • Average cloud cover in December: 72

The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Janochy, Poland

  • Average visibility in December: 8km

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